Performance information

• New strategy to enhance soybean pod shattering resistance with quadruple GmMYB26 mutations　　　　　　　　　　　　　　　
  Ryoma Takeshima; Yu Takahashi; Akito Kaga; Ryu Nakata; Ken Naito; Masao Ishimoto
  New Phytologist, Jun. 2025
  Scientific journal
  DOI：https://doi.org/10.1111/nph.70081
  DOI ID：10.1111/nph.70081, ORCID：181959924
• High-yield factors in the new soybean cultivar ‘Soramizuki’ derived from a US parent cultivar　　　　　　　　　　　　　　　
  Ryo Yamazaki; Yohei Nanjo; Masayasu Saruta; Shin Kato; Kaori Hirata; Kenta Nakashima; Ryoma Takeshima; Koji Takahashi; Emiko Aoki
  Plant Production Science, Apr. 2025
  Scientific journal
  DOI：https://doi.org/10.1080/1343943X.2025.2452289
  DOI ID：10.1080/1343943X.2025.2452289, ORCID：175800114
• The genomic landscape of gene-level structural variations in Japanese and global soybean Glycine max cultivars
  Ryoichi Yano; Feng Li; Susumu Hiraga; Ryoma Takeshima; Michie Kobayashi; Kyoko Toda; Yosuke Umehara; Hiromi Kajiya-Kanegae; Hiroyoshi Iwata; Akito Kaga; Masao Ishimoto
  Nature Genetics, Mar. 2025
  Springer Science and Business Media LLC, Scientific journal
  DOI：https://doi.org/10.1038/s41588-025-02113-5
  DOI ID：10.1038/s41588-025-02113-5, ISSN：1061-4036, eISSN：1546-1718
• Genome sequencing reveals the genetic architecture of heterostyly and domestication history of common buckwheat.　　　　　　　　　　　　　　　
  Jeffrey A Fawcett; Ryoma Takeshima; Shinji Kikuchi; Euki Yazaki; Tomoyuki Katsube-Tanaka; Yumei Dong; Meifang Li; Harriet V Hunt; Martin K Jones; Diane L Lister; Takanori Ohsako; Eri Ogiso-Tanaka; Kenichiro Fujii; Takashi Hara; Katsuhiro Matsui; Nobuyuki Mizuno; Kazusa Nishimura; Tetsuya Nakazaki; Hiroki Saito; Naoko Takeuchi; Mariko Ueno; Daiki Matsumoto; Miyu Norizuki; Kenta Shirasawa; Chengyun Li; Hideki Hirakawa; Tatsuya Ota; Yasuo Yasui
  Nature plants, Aug. 2023, ［International magazine］
  Common buckwheat, Fagopyrum esculentum, is an orphan crop domesticated in southwest China that exhibits heterostylous self-incompatibility. Here we present chromosome-scale assemblies of a self-compatible F. esculentum accession and a self-compatible wild relative, Fagopyrum homotropicum, together with the resequencing of 104 wild and cultivated F. esculentum accessions. Using these genomic data, we report the roles of transposable elements and whole-genome duplications in the evolution of Fagopyrum. In addition, we show that (1) the breakdown of heterostyly occurs through the disruption of a hemizygous gene jointly regulating the style length and female compatibility and (2) southeast Tibet was involved in common buckwheat domestication. Moreover, we obtained mutants conferring the waxy phenotype for the first time in buckwheat. These findings demonstrate the utility of our F. esculentum assembly as a reference genome and promise to accelerate buckwheat research and breeding.
  English, Scientific journal
  DOI：https://doi.org/10.1038/s41477-023-01474-1
  DOI ID：10.1038/s41477-023-01474-1, PubMed ID：37563460, 共同研究・競争的資金等ID：31537349
• Characterisation of starch properties and physical characteristics in buckwheat (Fagopyrum esculentum Moench.) mutant lacking accumulation of ‘granule‐bound starch synthase a’
  Tatsuro Suzuki; Takahiro Noda; Toshikazu Morishita; Koji Ishiguro; Shiori Otsuka; Jotaro Aii; Ayana Nakano; Kenjiro Katsu; Katsuhiro Matsui; Ryoma Takeshima; Noriaki Aoki; Takashi Hara; Takahiro Hara; Rie Satoh
  Plant Breeding, Aug. 2023
  Abstract
  
  The concentration of amylose, which is synthesised using granule‐bound starch synthase, affects the physical properties of food. However, no studies have focused on starch properties and physical characteristics of low‐amylose buckwheat. Here, we hypothesised that low‐amylose buckwheat would be useful to produce new buckwheat products because low‐amylose characteristics change the texture of buckwheat food. In this study, we bred relatively low‐amylose buckwheat compared to wild type and investigated the causative genes of the traits, starch properties and physical properties of noodles. In the GBSSa mutant, the amylose concentration was lower than that in the wild type. Compared with the wild type, the mutant exhibited the following traits: Amylose concentration decreased by approximately 2%, setback in the Rapid Visco Analyzer decreased by 30 points and the physical characteristics of noodles in the sensory analysis were soft and sticky. These results suggest that this trait may be useful for changing the texture of foods. In addition, the mutant is promising for producing new foods with physical characteristics that are different from those of the wild type.
  Wiley, Scientific journal
  DOI：https://doi.org/10.1111/pbr.13135
  DOI ID：10.1111/pbr.13135, ISSN：0179-9541, eISSN：1439-0523
• Subsurface drainage and raised-bed planting reduce excess water stress and increase yield in common buckwheat (Fagopyrum esculentum Moench)　　　　　　　　　　　　　　　
  Ryoma Takeshima; Shun Murakami; Yosuke Fujiwara; Keiko Nakano; Ritsuko Fuchiyama; Takahiro Hara; Takeo Shima; Takuya Koyama
  Field Crops Research, Volume：297, First page：108935, Last page：108935, Jun. 2023, [Reviewed], [Lead]
  Elsevier BV, Scientific journal
  DOI：https://doi.org/10.1016/j.fcr.2023.108935
  DOI ID：10.1016/j.fcr.2023.108935, ISSN：0378-4290, 共同研究・競争的資金等ID：32455995
• Genetic basis of maturity time is independent from that of flowering time and contributes to ecotype differentiation in common buckwheat (Fagopyrum esculentum Moench)　　　　　　　　　　　　　　　
  Ryoma Takeshima; Shiori Yabe; Katsuhiro Matsui
  BMC Plant Biology, Volume：22, Number：1, First page：353, Last page：353, Jul. 2022, [Reviewed], [Lead, Corresponding], ［International magazine］
  BACKGROUND: Common buckwheat is considered a quantitative short-day plant and is classified into the autumn (highly photoperiod sensitive), summer (weakly photoperiod sensitive), and intermediate ecotype. Understanding ecotype differentiation is essential for adaptive expansion and maximizing yield. The genetic analysis for ecotype has focused on photoperiod-dependent flowering time, whereas post-flowering traits such as seed set and maturity time might also regulate ecotype differentiation. RESULTS: A field experiment revealed that ecotype differentiation is mainly defined by the timing of seed set and maturation, whereas flowering time is less relevant. Thus, we focused on maturity time as a trait that defines the ecotype. To detect QTLs for maturity time, we developed two F2 populations derived from early × late-maturing accessions and intermediate × late-maturing accessions. Using genotyping by random amplicon sequencing-direct analysis, we generated a high-density linkage map. QTL analysis detected two major QTLs for maturity time, one in each F2 population. We also detected QTLs for flowering time at loci different from maturity time QTLs, which suggests that different genetic mechanisms regulate flowering and maturity. Association analysis showed that both QTLs for maturity time were significantly associated with variations in the trait across years. CONCLUSIONS: Maturity time appeared to be more suitable for explaining ecotype differentiation than flowering time, and different genetic mechanisms would regulate the timing of flowering and maturation. The QTLs and QTL-linked markers for maturity time detected here may be useful to extend the cultivation area and to fine-tune the growth period to maximize yield in buckwheat.
  English, Scientific journal
  DOI：https://doi.org/10.1186/s12870-022-03722-6
  DOI ID：10.1186/s12870-022-03722-6, ORCID：116166405, PubMed ID：35864444, PubMed Central ID：PMC9306078, 共同研究・競争的資金等ID：32455995;12030083
• Collaborative Exploration of Amaranth Vegetable Germplasm in Cambodia, 2019　　　　　　　　　　　　　　　
  Ryoma TAKESHIMA; Kazuhiro NEMOTO; Leakhena MAT; Dolla ROS; Sreynech OUCH; Sophany SAKHAN; Makara OUK
  AREIPGR, Volume：36, First page：112, Last page：127, Mar. 2021, [Reviewed], [Lead]
  This is a report for the Plant Genetic Resources in Asia project for the collaborative collection and conservation of plant genetic resources in east Cambodia under the agreement between the Cambodian Agricultural Research and Development Institute (CARDI) and the Genetic Resources Center, the National Agriculture and Food Research Organization (NARO), Japan. A field survey was conducted in five provinces (Kandal, Tboung Khmum, Kratie, Mondul Kiri, and Kompong Chan) in Cambodia from October 28 to November 8, 2019. We mainly focused on vegetable amaranths and collected a total of 75 germplasms, including 51 of amaranths (10 Amaranthus blitum, 20 A. spinosus, and 21 A. viridis), 19 of eggplants (Solanum melongena), 2 of turkey berries (S. torvum), 1 of S. violaceum, 1 of tomato (Lycopersicon esculentum), and 1 of Trichosanthes cucumerina. The seeds were divided equally: half were conserved in CARDI, and the other half was transferred to the gene bank at NARO.
  本報告はPlant Genetic Resources in Asiaプロジェクトのもと，国立研究開発法人農業・食品産業技術総合研究機構（農研機構）（NARO）とカンボジア農業開発研究所（CARDI）とで行った東カンボジア地域における植物遺伝資源の共同探索および収集に関する報告書である．2019年10月28日から11月8日にカンボジア東部の5つの州 (カンダル州，トボンクムン州，クラチエ州，モンドルキリ州，コンポンチャム州)において現地調査を実施した．葉菜用アマランサスを中心に合計75点収集し，葉菜用アマランサスが51点 (Amaranthus blitum 10点，A. spinosus 20点，A. viridis 21点)，ナス (Solanum melongena)が19点，スズメナスビ (S. torvum)が2点，S. violaceumが1点，トマト (Lycopersicon esculentum)が1点，ヘビウリ(Trichosanthes cucumerina)が1点であった．収集した遺伝資源の種子は2等分し，NAROのジーンバンクとCARDIにそれぞれ移送され，保存された．
  Figure 2点, Table 3点, Photo 6点, Sample Photo 70点
  source:https://doi.org/10.24514/00006142
  source:https://doi.org/10.24514/00006143
  source:https://doi.org/10.24514/00006144
  source:https://doi.org/10.24514/00006145
  source:https://doi.org/10.24514/00006146
  source:https://doi.org/10.24514/00006147
  source:https://doi.org/10.24514/00006148
  source:https://doi.org/10.24514/00006149
  source:https://doi.org/10.24514/00006150
  source:https://doi.org/10.24514/00006151
  source:https://doi.org/10.24514/00006152
  source:https://doi.org/10.24514/00006153
  source:https://doi.org/10.24514/00006154
  source:https://doi.org/10.24514/00006155
  source:https://doi.org/10.24514/00006156
  source:https://doi.org/10.24514/00006157
  source:https://doi.org/10.24514/00006158
  source:https://doi.org/10.24514/00006159
  source:https://doi.org/10.24514/00006160
  source:https://doi.org/10.24514/00006161
  source:https://doi.org/10.24514/00006162
  source:https://doi.org/10.24514/00006163
  source:https://doi.org/10.24514/00006164
  source:https://doi.org/10.24514/00006165
  source:https://doi.org/10.24514/00006166
  source:https://doi.org/10.24514/00006167
  source:https://doi.org/10.24514/00006168
  source:https://doi.org/10.24514/00006169
  source:https://doi.org/10.24514/00006170
  source:https://doi.org/10.24514/00006171
  source:https://doi.org/10.24514/00006172
  source:https://doi.org/10.24514/00006173
  source:https://doi.org/10.24514/00006174
  source:https://doi.org/10.24514/00006175
  source:https://doi.org/10.24514/00006176
  source:https://doi.org/10.24514/00006177
  source:https://doi.org/10.24514/00006178
  source:https://doi.org/10.24514/00006179
  source:https://doi.org/10.24514/00006180
  source:https://doi.org/10.24514/00006181
  source:https://doi.org/10.24514/00006182
  source:https://doi.org/10.24514/00006183
  source:https://doi.org/10.24514/00006184
  source:https://doi.org/10.24514/00006185
  source:https://doi.org/10.24514/00006186
  source:https://doi.org/10.24514/00006187
  source:https://doi.org/10.24514/00006188
  source:https://doi.org/10.24514/00006189
  source:https://doi.org/10.24514/00006190
  source:https://doi.org/10.24514/00006191
  source:https://doi.org/10.24514/00006192
  source:https://doi.org/10.24514/00006193
  source:https://doi.org/10.24514/00006194
  source:https://doi.org/10.24514/00006195
  source:https://doi.org/10.24514/00006196
  source:https://doi.org/10.24514/00006197
  source:https://doi.org/10.24514/00006198
  source:https://doi.org/10.24514/00006199
  source:https://doi.org/10.24514/00006200
  source:https://doi.org/10.24514/00006201
  source:https://doi.org/10.24514/00006202
  source:https://doi.org/10.24514/00006203
  source:https://doi.org/10.24514/00006204
  source:https://doi.org/10.24514/00006205
  source:https://doi.org/10.24514/00006206
  source:https://doi.org/10.24514/00006207
  source:https://doi.org/10.24514/00006208
  source:https://doi.org/10.24514/00006209
  source:https://doi.org/10.24514/00006210
  source:https://doi.org/10.24514/00006211
  source:https://doi.org/10.24514/00006212
  source:https://doi.org/10.24514/00006213
  source:https://doi.org/10.24514/00006214
  source:https://doi.org/10.24514/00006215
  source:https://doi.org/10.24514/00006216
  source:https://doi.org/10.24514/00006217
  source:https://doi.org/10.24514/00006218
  source:https://doi.org/10.24514/00006219
  source:https://doi.org/10.24514/00006220
  source:https://doi.org/10.24514/00006221
  source:https://doi.org/10.24514/00006222
  English
  DOI：https://doi.org/10.24514/00005678
  DOI ID：10.24514/00005678, ISSN：2434-7485, CiNii Articles ID：120006979956
• Targeted amplicon sequencing + next-generation sequencing–based bulked segregant analysis identified genetic loci associated with preharvest sprouting tolerance in common buckwheat (Fagopyrum esculentum)　　　　　　　　　　　　　　　
  Ryoma Takeshima; Eri Ogiso-Tanaka; Yasuo Yasui; Katsuhiro Matsui
  BMC Plant Biology, Volume：21, Number：1, First page：18, Last page：18, Jan. 2021, [Reviewed], [Lead], ［International magazine］
  
  
  Common buckwheat (2n = 2x = 16) is an outcrossing pseudocereal whose seeds contain abundant nutrients and potential antioxidants. As these beneficial compounds are damaged by preharvest sprouting (PHS) and PHS is likely to increase with global warming, it is important to find efficient ways to develop new PHS-tolerant lines. However, genetic loci and selection markers associated with PHS in buckwheat have not been reported.
  
  
  
  
  By next-generation sequencing (NGS) of whole-genome of parental lines, we developed a genome-wide set of 300 markers. By NGS- based bulked segregant analysis (NGS-BSA), we developed 100 markers linked to PHS tolerance. To confirm the effectiveness of marker development from NGS-BSA data, we developed 100 markers linked to the self-compatibility (SC) trait from previous NGS-BSA data. Using these markers, we developed genetic maps with AmpliSeq technology, which can quickly detect polymorphisms by amplicon-based multiplex targeted NGS, and performed quantitative trait locus (QTL) analysis for PHS tolerance in combination with NGS-BSA. QTL analysis detected two major and two minor QTLs for PHS tolerance in a segregating population developed from a cross between the PHS-tolerant ‘Kyukei 29’ and the self-compatible susceptible ‘Kyukei SC7’. We found different major and minor QTLs in other segregating populations developed from the PHS-tolerant lines ‘Kyukei 28’ and ‘NARO-FE-1’. Candidate markers linked to PHS developed by NGS-BSA were located near these QTL regions. We also investigated the effectiveness of markers linked to these QTLs for selection of PHS-tolerant lines among other segregating populations.
  
  
  
  
  We efficiently developed genetic maps using a method combined with AmpliSeq technology and NGS-BSA, and detected QTLs associated with preharvest sprouting tolerance in common buckwheat. This is the first report to identify QTLs for PHS tolerance in buckwheat. Our marker development system will accelerate genetic research and breeding in common buckwheat.
  
  
  
  Springer Science and Business Media LLC, English, Scientific journal
  DOI：https://doi.org/10.1186/s12870-020-02790-w
  DOI ID：10.1186/s12870-020-02790-w, eISSN：1471-2229, PubMed ID：33407135, PubMed Central ID：PMC7789488, 共同研究・競争的資金等ID：12030083
• Genes with Different Modes of Inheritance Regulate Seed Germination in Preharvest-Sprouting-Tolerant Lines of Buckwheat (Fagopyrum esculentum)　　　　　　　　　　　　　　　
  Takahiro HARA; Ryoma TAKESHIMA; Katsuhiro MATSUI
  JARQ, Volume：50, Number：2, First page：137, Last page：143, Mar. 2020, [Reviewed]
  English
• Development of co-dominant markers linked to a hemizygous region that is related to the self-compatibility locus (S) in buckwheat (Fagopyrum esculentum)　　　　　　　　　　　　　　　
  Katsuhiro Matsui; Nobuyuki Mizuno; Mariko Ueno; Ryoma Takeshima; Yasuo Yasui
  Breeding Science, Volume：70, Number：1, First page：112, Last page：117, 2020, [Reviewed]
  Japanese Society of Breeding, Scientific journal
  DOI：https://doi.org/10.1270/jsbbs.19129
  DOI ID：10.1270/jsbbs.19129, ISSN：1344-7610, ORCID：70849013
• Identification of a gene encoding polygalacturonase expressed specifically in short styles in distylous common buckwheat (Fagopyrum esculentum)　　　　　　　　　　　　　　　
  Ryoma Takeshima; Takeshi Nishio; Setsuko Komatsu; Nobuyuki Kurauchi; Katsuhiro Matsui
  Heredity, Volume：123, Number：4, First page：492, Last page：502, Oct. 2019, [Reviewed], [Lead]
  Springer Science and Business Media {LLC}, Scientific journal
  DOI：https://doi.org/10.1038/s41437-019-0227-x
  DOI ID：10.1038/s41437-019-0227-x, ISSN：0018-067X, ORCID：57306365, PubMed ID：31076649
• Growth and yield response of common buckwheat (Fagopyrum esculentum Moench) to waterlogging at different vegetative stages　　　　　　　　　　　　　　　
  Takuya Koyama; Momo Suenaga; Ryoma Takeshima
  Plant Production Science, Volume：22, Number：4, First page：456, Last page：464, Oct. 2019, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1080/1343943X.2019.1670682
  DOI ID：10.1080/1343943X.2019.1670682, ISSN：1343-943X, eISSN：1349-1008, ORCID：62773742, Web of Science ID：WOS:000489985500001
• Functional divergence between soybean FLOWERING LOCUS T orthologues, FT2a and FT5a, in post-flowering stem growth　　　　　　　　　　　　　　　
  Ryoma Takeshima; Haiyang Nan; Kohei Harigai; Lidong Dong; Jianghui Zhu; Sijia Lu; Meilan Xu; Noriko Yamagishi; Nobuyuki Yoshikawa; Baohui Liu; Tetsuya Yamada; Fanjiang Kong; Jun Abe
  Journal of Experimental Botany, Volume：70, Number：15, First page：3941, Last page：3953, Apr. 2019, [Reviewed], [Lead]
  Oxford University Press ({OUP}), Scientific journal
  DOI：https://doi.org/10.1093/jxb/erz199
  DOI ID：10.1093/jxb/erz199, ISSN：0022-0957, ORCID：57012099, PubMed ID：31035293
• Loss of Function of the E1-Like-b Gene Associates With Early Flowering Under Long-Day Conditions in Soybean　　　　　　　　　　　　　　　
  Jianghui Zhu; Ryoma Takeshima; Kohei Harigai; Meilan Xu; Fanjiang Kong; Baohui Liu; Akira Kanazawa; Tetsuya Yamada; Jun Abe
  Frontiers in Plant Science, Volume：9, First page：1867, Jan. 2019, [Reviewed]
  Frontiers Media {SA}, Scientific journal
  DOI：https://doi.org/10.3389/fpls.2018.01867
  DOI ID：10.3389/fpls.2018.01867, ISSN：1664-462X, ORCID：52390262, PubMed ID：30671065
• Molecular mechanisms of flowering under long days and stem growth habit in soybean　　　　　　　　　　　　　　　
  Dong Cao; Ryoma Takeshima; Chen Zhao; Baohui Liu; Abe Jun; Fanjiang Kong
  JOURNAL OF EXPERIMENTAL BOTANY, Volume：68, Number：8, First page：1873, Last page：1884, Apr. 2017, [Reviewed]
  English
  DOI：https://doi.org/10.1093/jxb/erw394
  DOI ID：10.1093/jxb/erw394, ISSN：0022-0957, eISSN：1460-2431, PubMed ID：28338712, Web of Science ID：WOS:000402059000006
• A soybean quantitative trait locus that promotes flowering under long days is identified as FT5a, a FLOWERING LOCUS T ortholog　　　　　　　　　　　　　　　
  Ryoma Takeshima; Takafumi Hayashi; Jianghui Zhu; Chen Zhao; Meilan Xu; Naoya Yamaguchi; Takashi Sayama; Masao Ishimoto; Lingping Kong; Xinyi Shi; Baohui Liu; Zhixi Tian; Tetsuya Yamada; Fanjiang Kong; Jun Abe
  JOURNAL OF EXPERIMENTAL BOTANY, Volume：67, Number：17, First page：5247, Last page：5258, Sep. 2016, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1093/jxb/erw283
  DOI ID：10.1093/jxb/erw283, ISSN：0022-0957, eISSN：1460-2431, PubMed ID：27422993, Web of Science ID：WOS:000384648900025
• A recessive allele for delayed flowering at the soybean maturity locus E9 is a leaky allele of FT2a, a FLOWERING LOCUS T ortholog　　　　　　　　　　　　　　　
  Chen Zhao; Ryoma Takeshima; Jianghui Zhu; Meilan Xu; Masako Sato; Satoshi Watanabe; Akira Kanazawa; Baohui Liu; Fanjiang Kong; Tetsuya Yamada; Jun Abe
  BMC PLANT BIOLOGY, Volume：16, First page：20, Jan. 2016, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1186/s12870-016-0704-9
  DOI ID：10.1186/s12870-016-0704-9, ISSN：1471-2229, PubMed ID：26786479, Web of Science ID：WOS:000368417000002
• The Soybean-Specific Maturity Gene E1 Family of Floral Repressors Controls Night-Break Responses through Down-Regulation of FLOWERING LOCUS T Orthologs　　　　　　　　　　　　　　　
  Meilan Xu; Noriko Yamagishi; Chen Zhao; Ryoma Takeshima; Megumi Kasai; Satoshi Watanabe; Akira Kanazawa; Nobuyuki Yoshikawa; Baohui Liu; Tetsuya Yamada; Jun Abe
  PLANT PHYSIOLOGY, Volume：168, Number：4, First page：1735, Last page：U1080, Aug. 2015, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1104/pp.15.00763
  DOI ID：10.1104/pp.15.00763, ISSN：0032-0889, eISSN：1532-2548, PubMed ID：26134161, Web of Science ID：WOS:000359317400044

• Orphan Cropのゲノム解読と育種利用 〜ソバ属を例に〜　　　　　　　　　　　　　　　
  竹島 亮馬; Fawcett Jeffrey; 平川 英樹; 松井 勝弘; 大田 竜也; 安井 康夫
  Sep. 2024, [Invited], [Lead]
  共同研究・競争的資金等ID：31537349
• Inbreeding enhanced transcriptome and methylome changes may involve in depression of reproductive growth in common buckwheat (Fagopyrum esculentum Moench)　　　　　　　　　　　　　　　
  Ryoma Takeshima; Katsuhiro Matsui; Yasuo Yasui
  ASPB Plant Biology 2024, Jun. 2024, [Lead]
  共同研究・競争的資金等ID：31537349
• Analysis of factors that causes high yield of soybean variety “Soramizuki”, developed from a high yielding U.S. variety　　　　　　　　　　　　　　　
  Yamazaki Ryo; Nanjo Yohei; Saruta Masayasu; Kato Shin; Hirata Kaori; Nakashima Kenta; Takeshima Ryoma; Takahashi Koji; Aoki Emiko
  Abstracts of Meeting of the CSSJ, Volume：257, First page：11, Last page：11, 28 Mar. 2024
  CROP SCIENCE SOCIETY OF JAPAN, Japanese
  DOI：https://doi.org/10.14829/jcsproc.257.0_11
  DOI ID：10.14829/jcsproc.257.0_11
• Genetic architecture of heteromorphic self-incompatibility in common buckwheat　　　　　　　　　　　　　　　
  竹島亮馬; FAWCETT J.; 松井勝弘; 水野信之; 松本大生; 平川英樹; 大田竜也; 安井康夫
  育種学研究, Volume：25, Sep. 2023, [Lead]
  ISSN：1344-7629, J-Global ID：202402287318635698, 共同研究・競争的資金等ID：31537349
• Soybean breeding learning from pulses　　　　　　　　　　　　　　　
  TAKAHASHI Yu; TAKESHIMA Ryoma; KAGA Akito
  Journal of the NARO Research and Development, Volume：2023, Number：13, First page：81, Last page：87, 31 Mar. 2023
  Leguminous crops that are harvested only for dry seed are called pulses. Some pulses are superior to soybean in terms of research material because they contain species with simple genome structures and are rich in species diversity, but they cannot be used directly as breeding materials (genetic resources) for soybean. However, if its gene information can be extracted from pulses, it should be possible to apply it to soybean breeding with similar genetic background. In this paper, we propose the use of gene information from various pulses in soybean breeding, using non-shattering trait as an example of such a possibility.
  National Agriculture and Food Research Organization, Japanese
  DOI：https://doi.org/10.34503/naroj.2023.13_81
  DOI ID：10.34503/naroj.2023.13_81, ISSN：2434-9895, eISSN：2434-9909
• Soybean breeding learning from pulses　　　　　　　　　　　　　　　
  高橋有; 竹島亮馬; 加賀秋人
  農研機構研究報告, Number：13, 2023
  ISSN：2434-9909, J-Global ID：202302281423561478
• Observation of soil moisture in buckwheat cultivated paddy fields with drainage measures　　　　　　　　　　　　　　　
  中野恵子; 渕山律子; 藤原洋介; 神山拓也; 竹島亮馬; 小林省吾; 島武男; 村上隼; 原貴洋
  土壌物理学会大会講演要旨集(Web), Volume：65th, 2023
  J-Global ID：202402221207172440
• Hemizygous Genomic Region Controls Distyly in Buckwheat-It Isn’t the Classical Super Gene Model-　　　　　　　　　　　　　　　
  安井康夫; 竹島亮馬; FAWCETT Jeffrey; 松井勝弘; 水野信之; 松本大生; 平川英樹; 白澤健太; 大田竜也
  日本分子生物学会年会プログラム・要旨集(Web), Volume：46th, 2023
  J-Global ID：202402258686142118
• Buckwheat genome project-outline and perspectives-　　　　　　　　　　　　　　　
  大田竜也; FAWCETT J.; 竹島亮馬; 菊池真司; 大迫敬義; 白澤健太; 法月美悠; 松井勝弘; 矢崎裕規; 木曽映里; 藤井健一郎; 原尚資; JONES Martin K.; 平川英樹; LI Cheng-Yun; 安井康夫
  育種学研究, Volume：25, 2023
  ISSN：1344-7629, J-Global ID：202402212805337426
• Genome sequencing reveals the genetic architecture of heterosytly in common buckwheat　　　　　　　　　　　　　　　
  FAWCETT Jeffrey; 竹島亮馬; 松井勝弘; 水野信之; 松本大生; 平川英樹; 大田竜也; 安井康夫
  日本遺伝学会大会プログラム・予稿集, Volume：95th (CD-ROM), 2023
  J-Global ID：202302280905929802, 共同研究・競争的資金等ID：31537349
• Genetics and Genomics of Orphan Crops and their perspectives　　　　　　　　　　　　　　　
  大田竜也; FAWCETT Jeffrey A.; 竹島亮馬; 菊池真司; 大迫敬義; 白澤健太; 法月美悠; 松井勝弘; 矢崎裕規; 小木曽映里; 藤井健一郎; 原尚資; JONES Martin K.; 平川英樹; LI Cheng-Yun; 安井康夫
  日本進化学会大会プログラム・講演要旨集(Web), Volume：25th, 2023
  J-Global ID：202302263078882546
• Wide-area Analysis of Relation between Buckwheat Yield and Each Wet Damage Factor in Ugo Town　　　　　　　　　　　　　　　
  SHIMA Takeo; HARA Takahiro; NAKANO Keiko; FUCHIYAMA Ritsuko; TAKESHIMA Ryoma; KOUYAMA Takuya; MURAKAMI Hayato; KOBAYASHI Syougo; FUJIWARA Yousuke
  Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering, Volume：91, Number：1, First page：I_99, Last page：I_111, 2023
  Recently, buckwheat has started gaining focus as a novel item. However, buckwheat is susceptible to excess soil moisture stress and severe yield decrease in wet fields. Therefore, agricultural production corporations, cultivation farmers, and people concerned with buckwheat municipal cultivation require information regarding wet damage factors affecting buckwheat yield. Herein, the spatial distribution of buckwheat yield in Ugo, Akita Prefecture, was established. Further, we statistically analyzed the relation between buckwheat yield and wet damage factors, i.e., topography, soil, drainage channel and drainage pump maintenance, and underdrainage function. Results showed that buckwheat is cultivated where there is a high risk of wet damage, such as damp land, and underdrainage makes a low risk of wet damage on the low-level ground. Therefore, in Ugo town, the information on topography, drainage channel and drainage pump maintenance, and subsurface drainage function helps estimate the wet damage risk.
  The Japanese Society of Irrigation, Drainage and Rural Engineering, Japanese
  DOI：https://doi.org/10.11408/jsidre.91.i_99
  DOI ID：10.11408/jsidre.91.i_99, ISSN：1882-2789, eISSN：1884-7242, J-Global ID：202302226606623285
• Effect of rotary tilling, ridge-making and seedling implement on the growth and yield of common buckwheat and physiological response to waterlogging　　　　　　　　　　　　　　　
  Takeshima Ryoma; Fujiwara Yosuke; Kobayashi Shogo; Murakami Shun; Koyama Takuya; Nakano Keiko; Fuchiyama Ritsuko; Shima Takeo; Hara Takahiro
  Abstracts of Meeting of the CSSJ, Volume：253, First page：42, Last page：42, 25 Mar. 2022, [Lead]
  CROP SCIENCE SOCIETY OF JAPAN, Japanese
  DOI：https://doi.org/10.14829/jcsproc.253.0_42
  DOI ID：10.14829/jcsproc.253.0_42, J-Global ID：202202289942336073
• Evaluation of Excess Soil Moisture Stress Mitigating Management by Common Buckwheat Yield Component　　　　　　　　　　　　　　　
  Murakami Shun; Fujiwara Yosuke; Nakano Keiko; Fuchiyama Ritsuko; Takeshima Ryoma; Shima Takeo; Hara Takahiro; Kobayashi Shogo; Koyama Takuya
  Abstracts of Meeting of the CSSJ, Volume：253, First page：101, Last page：101, 25 Mar. 2022
  CROP SCIENCE SOCIETY OF JAPAN, Japanese
  DOI：https://doi.org/10.14829/jcsproc.253.0_101
  DOI ID：10.14829/jcsproc.253.0_101, J-Global ID：202202241535830135
• Evaluates inbreeding effects on reproductive organs and compare the methylome and transcriptome profiles in common buckwheat　　　　　　　　　　　　　　　
  竹島亮馬; 安井康夫; 松井勝弘
  育種学研究, Volume：24, 2022
  ISSN：1344-7629, J-Global ID：202302267359349819
• Dissection of the genetic architecture for soybean seed weight by GWAS and validation using RIL populations　　　　　　　　　　　　　　　
  LI F.; 竹島亮馬; 加藤信; 矢野亮一; MATTHEW Shenton; 平賀勧; 加賀秋人; 羽鹿牧太; 石本政男
  育種学研究, Volume：24, 2022
  ISSN：1344-7629, J-Global ID：202302224268466580
• Genetic basis of the maturity time independent of the flowering time of common buckwheat (Fagopyrum esculentum)　　　　　　　　　　　　　　　
  竹島亮馬; 矢部志央理; 松井勝弘
  育種学研究, Volume：24, 2022
  ISSN：1344-7629, J-Global ID：202202241133211501, 共同研究・競争的資金等ID：32455995;12030083
• Genetic analysis of inbreeding depression on abnormal leaf shape in common buckwheat　　　　　　　　　　　　　　　
  竹島亮馬; 安井康夫; 平川英樹; 松井勝弘
  育種学研究, Volume：23, 2021
  ISSN：1344-7629, J-Global ID：202202256509741560, 共同研究・競争的資金等ID：31537349
• Identification of the genetic loci associated with pre-harvest sprouting and self-compatibility using AmpliSeq technology in common buckwheat　　　　　　　　　　　　　　　
  TAKESHIMA RYOMA; OGISO ERI; YASUI YASUO; MATSUI KATSUHIRO
  Breeding Research, Volume：22, Number：1, First page：28, Last page：28, Mar. 2020, [Lead]
  ISSN：1344-7629, J-Global ID：202002252734162795, 共同研究・競争的資金等ID：12030083
• Identification of Genetic Loci Associated with Self-Compatibility, Pre-Harvest Sprouting and Maturity Time Using Targeted Next-Generation Sequencing in Common Buckwheat (Fagopyrum esculentum)　　　　　　　　　　　　　　　
  Ryoma Takeshima; Eri Ogiso-Tanaka; Yasuo Yasui; Katsuhiro Matsui
  Plant & Animal Genome Conference XXVIII, Jan. 2020, [Lead]
  共同研究・競争的資金等ID：12030083
• 普通ソバの穂発芽耐性に関わる遺伝子座の検出　　　　　　　　　　　　　　　
  竹島亮馬; 原貴洋; 小木曽映里; 安井康夫; 松井勝弘
  Volume：2020, 2020
  J-Global ID：202102244105438453
• ソバにおける異型花型自家不和合性遺伝子座のゲノム解析　　　　　　　　　　　　　　　
  大田竜也; 相井城太郎; 上野まりこ; 大澤良; 齊藤大樹; 齊藤大樹; 白澤健太; 竹島亮馬; 中崎鉄也; 西村和紗; 原尚資; 原尚資; 平川英樹; FAWCETT J; FAWCETT J; 松井勝弘; 水野信之; 安井康夫
  育種学研究, Volume：21, First page：19, 06 Sep. 2019
  Japanese
  ISSN：1344-7629, J-Global ID：201902217608217452
• ダイズの柱頭上花粉発芽に関わるFTオルソログの機能　　　　　　　　　　　　　　　
  平田万季; 針谷康平; 竹島亮馬; 松浦英幸; 藤野介延; XU M; 山田哲也; 阿部純
  育種学研究, Volume：21, First page：49, 06 Sep. 2019
  Japanese
  DOI：https://doi.org/10.1270/jsbbr.21.W01
  DOI ID：10.1270/jsbbr.21.W01, ISSN：1344-7629, J-Global ID：201902245180181600
• ソバ属植物におけるゲノムの進化　　　　　　　　　　　　　　　
  FAWCETT Jeffrey; FAWCETT Jeffrey; 上野まりこ; 大澤良; 大田竜也; 齊藤大樹; 齊藤大樹; 白澤健太; 竹島亮馬; 中崎鉄也; 西村和紗; 原尚資; 原尚資; 平川英樹; 松井勝弘; 水野信之; 安井康夫
  日本遺伝学会大会プログラム・予稿集, Volume：91st, First page：142, 19 Aug. 2019
  Japanese
  J-Global ID：201902282482725134
• 普通ソバの生態型を制御する日長応答性に関する遺伝解析　　　　　　　　　　　　　　　
  竹島亮馬; 小木曽映里; 松井勝弘
  育種学研究, Volume：21, First page：123, 16 Mar. 2019
  Japanese
  ISSN：1344-7629, J-Global ID：201902282814526569, 共同研究・競争的資金等ID：12030083
• Responses of buckwheat (Fagopyrum esculentum) to waterlogging at vegetative stage　　　　　　　　　　　　　　　
  Koyama Takuya; Suenaga Momo; Takeshima Ryoma
  Abstracts of Meeting of the CSSJ, Volume：247, Number：0, First page：207, Last page：207, 2019
  CROP SCIENCE SOCIETY OF JAPAN, Japanese
  DOI：https://doi.org/10.14829/jcsproc.247.0_207
  DOI ID：10.14829/jcsproc.247.0_207, J-Global ID：201902226789624376, CiNii Articles ID：130007620817
• 普通ソバにおけるAmpliSeqを利用した効率的な遺伝解析
  竹島亮馬; 小木曽映里; 安井康夫; 松井勝弘
  育種学研究, Volume：20, First page：18, 25 Mar. 2018
  Japanese
  ISSN：1344-7629, J-Global ID：201802237902189166
• ダイズの長日下における莢形成を阻害する要因　　　　　　　　　　　　　　　
  針谷康平; 竹島亮馬; 山田哲也; KONG F; 阿部純
  育種学研究, Volume：19, First page：48, 07 Oct. 2017
  Japanese
  DOI：https://doi.org/10.1270/jsbbr.19.48
  DOI ID：10.1270/jsbbr.19.48, ISSN：1344-7629, J-Global ID：201702254211333700
• E1様遺伝子の機能欠損遺伝子がダイズの長日条件下での開花に関与する
  ZHU J; XU M; 竹島亮馬; 針谷康平; 山田哲也; 阿部純
  育種学研究, Volume：19, First page：49, 07 Oct. 2017
  Japanese
  ISSN：1344-7629, J-Global ID：201702263690797492
• ソバの花器特異的なexo‐ポリガラクツロナーゼと異形花型との関わり
  竹島亮馬; 西尾剛; 小松節子; 倉内伸幸; 松井勝弘
  育種学研究, Volume：19, First page：124, 07 Oct. 2017
  Japanese
  ISSN：1344-7629, J-Global ID：201702274935147397
• ダイズの莢形成におけるフロリゲン遺伝子―FT2aおよびFT5a―の役割
  竹島亮馬; 針谷康平; ZHU J; KONG F; 山田哲也; 阿部純
  育種学研究, Volume：19, First page：100, 29 Mar. 2017
  Japanese
  ISSN：1344-7629, J-Global ID：201702217159087653
• Influences of soybean florigen gene -FT2a- on post-flowering reproductive growth　　　　　　　　　　　　　　　
  針谷康平; 竹島亮馬; 山田哲也; Kong F; 阿部純
  日本育種学会・日本作物学会北海道談話会会報(Web), Volume：58, First page：50‐51(J‐STAGE), 2017
  Japanese
  DOI：https://doi.org/10.20751/hdanwakai.58.0_50
  DOI ID：10.20751/hdanwakai.58.0_50, ISSN：2432-0307, J-Global ID：201802213077003079
• ダイズの主要開花経路―E1‐FT2a/FT5a―制御下にある開花遺伝子群の解析
  竹島亮馬; ZHU J; 渡邊啓史; KONG F; 山田哲也; 阿部純
  育種学研究, Volume：18, First page：43, 24 Sep. 2016
  Japanese
  ISSN：1344-7629, J-Global ID：201602272827557698
• ダイズの分枝性に及ぼす伸育性遺伝子Dt2の効果
  林隆文; 竹島亮馬; ZHAO C; 山田哲也; 阿部純
  育種学研究, Volume：17, First page：94, 21 Mar. 2015
  Japanese
  ISSN：1344-7629, J-Global ID：201502207871841171
• ダイズの開花早晩性を規定するpDsf1のファインマッピング
  竹島亮馬; 山口直矢; 佐山貴司; 石本政男; 渡邊啓史; 山田哲也; 阿部純
  育種学研究, Volume：17, First page：93, 21 Mar. 2015
  Japanese
  ISSN：1344-7629, J-Global ID：201502297771267876
• Fine-mapping of a QTL for flowering in linkage group J and an analysis for the candidate gene　　　　　　　　　　　　　　　
  Takeshima R; Zhu J; Yamaguchi N; Sayama T; Ishimoto M; Watanabe T; Kong F; Yamada T; Abe J
  Report of the Hokkaido Branch, the Japanese Society of Breeding and Hokkaido Branch, the Crop Science Society of Japan, Volume：56, Number：0, First page：48, Last page：49, 2015
  Hokkaido Branch, the Japanese Society of Breeding and Hokkaido Branch, the Crop Science Society of Japan, Japanese
  DOI：https://doi.org/10.20751/hdanwakai.56.0_48
  DOI ID：10.20751/hdanwakai.56.0_48, CiNii Articles ID：110010033177, CiNii Books ID：AN0009115X
• Environmental and genetic factors on branching of soybean　　　　　　　　　　　　　　　
  Hayashi T; Takeshima R; Abe J
  Report of the Hokkaido Branch, the Japanese Society of Breeding and Hokkaido Branch, the Crop Science Society of Japan, Number：55, First page：97, Last page：98, Dec. 2014
  The Crop Science Society of Japan, Japanese
  DOI：https://doi.org/10.20751/hdanwakai.55.0_97
  DOI ID：10.20751/hdanwakai.55.0_97, CiNii Articles ID：110010023975, CiNii Books ID：AN0009115X
• ダイズの開花抑制遺伝子E1に制御される開花関連遺伝子の解析と開花との関連性
  竹島亮馬; ZHAO C; XU M; LIU B; 渡邊啓史; 山田哲也; 阿部純
  育種学研究, Volume：16, First page：88, 21 Mar. 2014
  Japanese
  ISSN：1344-7629, J-Global ID：201402218204610425
• VIGSを用いたE1L遺伝子の機能解析
  XU M; 山岸紀子; 竹島亮馬; 河西めぐみ; 金澤章; 吉川信幸; 山田哲也; 阿部純
  育種学研究, Volume：15, First page：149, 12 Oct. 2013
  Japanese
  ISSN：1344-7629, J-Global ID：201302226231128908
• ダイズにおけるFRUITFULL様遺伝子の機能分化と開花との関連性
  竹島亮馬; ZHAO C; XU M; LIU B; 山田哲也; 阿部純
  育種学研究, Volume：15, First page：148, 12 Oct. 2013
  Japanese
  ISSN：1344-7629, J-Global ID：201302235047752967
• ダイズにおけるFRUITFULL様遺伝子の多様性および開花との関連性
  竹島亮馬; 趙晨; 徐美蘭; 劉宝輝; 山田哲也; 阿部純
  日本植物細胞分子生物学会大会・シンポジウム講演要旨集, Volume：31st, First page：269, 20 Aug. 2013
  Japanese
  J-Global ID：201302294450245702
• 中国早生ダイズの非感光性に関するQTL解析
  竹島亮馬; 林隆文; XU M; LIU B; 山田哲也; 阿部純
  育種学研究, Volume：15, First page：99, 27 Mar. 2013
  Japanese
  ISSN：1344-7629, J-Global ID：201302218163173506
• Gene expression analysis for flowering genes in photoperiod-insensitive soybeans.　　　　　　　　　　　　　　　
  Takeshima R; Xu M; Yamada T; Abe J
  Report of the Hokkaido Branch, the Japanese Society of Breeding and Hokkaido Branch, the Crop Science Society of Japan, Number：53, First page：77, Last page：78, Dec. 2012
  日本作物学会, Japanese
  DOI：https://doi.org/10.20751/hdanwakai.53.0_77
  DOI ID：10.20751/hdanwakai.53.0_77, CiNii Articles ID：110009578517, CiNii Books ID：AN0009115X

• Agro-Biological Resource Science, Exercises, University of Tsukuba
• Advanced Lectures on Plant Physiology, Shizuoka University

• ソバの生態型を支配する日長応答性遺伝子群の同定　　　　　　　　　　　　　　　
  01 Apr. 2021 - 31 Mar. 2024
  Grant amount(Total)：4680000, Direct funding：3600000, Indirect funding：1080000
  Grant number：21K14838
  論文ID：42076161, MISC ID：39247223
• 植物の近交弱勢における遺伝機構の解明　　　　　　　　　　　　　　　
  Dec. 2020 - Mar. 2023
  Principal investigator
  論文ID：43079447, MISC ID：48387698, 受賞ID：51511551
• 畑作物生産の安定・省力化に向けた湿害、雑草害対策技術の開発　　　　　　　　　　　　　　　
  2019 - 2023
  Competitive research funding
• Genetic analysis for photoperiod-depending seed set and maturity time which defines the ecotype of common buckwheat (Fagopyrum esculentum)　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Early-Career Scientists, Grant-in-Aid for Early-Career Scientists, 01 Apr. 2018 - 31 Mar. 2021
  TAKESHIMA Ryoma, National Agriculture and Food Research Organization, Principal investigator
  Grant amount(Total)：4160000, Direct funding：3200000, Indirect funding：960000
  Common buckwheat is classified into summer, intermediate, and autumn ecotypes based on their photoperiod responsiveness. This study aims to detect the genetic loci for photoperiod-depending seed setting and maturity time, which defines the ecotypes. QTL analysis of “summer×mid-autumn” crosses detected QTLs for summerization, which results in early seed setting and maturation. The QTLs for flowering time and maturity time were also detected at different loci, indicating that there may be different regulatory mechanisms.
  Competitive research funding, Grant number：18K14448
  論文ID：39247173, MISC ID：39247223, 受賞ID：2440343
• そば需要拡大のための「デンプン改変そば」の系統開発と評価　　　　　　　　　　　　　　　
  Apr. 2018 - Mar. 2021
  Competitive research funding
• Apple latent spherical virus を用いたダイズ開花遺伝子の研究　　　　　　　　　　　　　　　
  Apr. 2015 - Mar. 2016
  Principal investigator
  Competitive research funding

• ダイズ植物、その種子及びその作出方法　　　　　　　　　　　　　　　
  Patent right
  J-Global ID：202403000883326574
• アミロース含有率が低減されたソバ属植物　　　　　　　　　　　　　　　
  Patent right
  J-Global ID：202203020171102773