名古屋大学農学国際教育研究センター 研究室
研究室紹介
生物遺伝情報研究室では、まずは遺伝情報と有用形質との関わりをしっかりと理解し,その知見を利用して耐性作物品種を育成することを目指しています。例えば乾燥ストレス下では、植物は水不足を回避するために根域を拡大し、地上部生育の維持を試みます。しかし、その能力には大きな品種間差が認められるため、乾燥下では著しく地上部の生育が低下する品種や、比較的その生育を維持できる品種が存在します（下図）。そこで、私たちはこの能力の違いをもたらす根系形成の遺伝的なメカニズムの解明を目指して研究を進めています。
最近、徐々にこの仕組みが分かってきており、水がたくさんある場合は余分な根をつくらないようにQHB/OsWOX5 遺伝子が根域の拡大を防いでいますが（下図B）、土壌が乾燥するとOsWOX10 遺伝子の発現が誘導され、根域の拡大がどんどんと促されます（下図C）。その際、形成過程の側根原基では植物ホルモンのオーキシンが蓄積することで、このOsWOX10 遺伝子の発現誘導が生じます（下図D）。一方、どのような仕組みでオーキシンの蓄積が起こるのか、その後にどうOsWOX10 遺伝子が誘導されるのか、またその下流ではどのような遺伝子が作用するのかなど、まだまだ分からないことばかりです（下図E）。耐性品種の育成を目指し、一緒に研究を進めてくれる院生さんを絶賛募集中です！
最新の研究
メンバー
What's new
業績
36. Deshabandu, K. H. S. T., Noda, Y., Marcelo, V. A. C., Ehara, H., Inukai, Y. and Kano-Nakata, M.
Rice yield and grain quality under fluctuating soil moisture stress
Agronomy 14: 1926 (2024.8.28)
DOI: org/10.3390/agronomy14091926
35. Yamauchi, T., Tanaka, A., Nakazono, A. and Inukai, Y.
Age-dependent analysis dissects the stepwise control of auxin-mediated lateral root development in rice
Plant Physiology 194: 819-831 (2024.2)
34. Liu, Q., Kawai, T., Inukai, Y., Aoki, D., Fukushima, K., Lin, X., Shi, W., Busch, W., Matsushita, Y. and Li, B.
A lignin-derived material improves plant nutrient bioavailability and growth through its metal chelating capacity
Nature Communications 14: 4866 (2023.8.11)
DOI: 10.1038/s41467-023-40497-2
33. Owusu-Nketia, S., Suralta, R. R., Inukai, Y., Mitsuya, S., Kano-Nakata, M., Ofori, P. A., Nguyen, D. N. and Yamauchi, A.
Dry matter production of two rice cultivars with contrasting root plasticity expression under different topographic conditions subjected to soil moisture fluctuation
Philipp. Agric. Scientist 106: 131-142 (2023.8.10)
32. Enkhbat, G., Inukai, Y., Nichols, P. G. H., Pang, J., Erskine, W., Foster, K. J. and Ryan, M. H.
Response to water-deficit following waterlogging varies among ecotypes of subterranean clover (Trifolium subterraneum ssp. yanninicum), a waterlogging-tolerant annual pasture legume
Annals of Applied Biology 183: 287-301 (2023.7.23)
31. Enkhbat, G., Foster, K. J., Nichols, P. G. H., Erskine, W., Inukai, Y. and Ryan, M. H.
Leaf formononetin content of Trifolium subterraneum increases in response to waterlogging but its proportion of total isoflavones is little changed
Functional Plant Biology 50: 507-518 (2023.6)
30. Soe, T. K., Kuneida, M., Sunohara, H., Inukai, Y., Reyes, V. P., Nishiuchi, S. and Doi, K.
A novel combination of genes causing temperature-sensitive hybrid weakness in rice
Frontiers in Plant Science 13: 908000 (2022.6.28)
29. Suzuki, G., Fukuda, M., Lucob‐Agustin, N., Inukai, Y. and Gomi, K.
The mutation of rice MEDIATOR25, OsMED25, induces rice bacterial blight resistance through altering jasmonate‐ and auxin‐signaling
Plants 11: 1601 (2022.6.17)
28. Enkhbat, G., Ryan, M. H., Nichols, P. G. H., Foster, K. J., Inukai, Y. and Erskine, W.
Petiole length reduction is an indicator of waterlogging stress for Trifolium subterraneum ssp. yanninicum
Plant and Soil (2022.4.13)
DOI: 10.1007/s11104-022-05404-6
27. Kawai, T., Akahoshi, R., Shelley, I. J., Kojima, T., Sato, M., Tsuji, H. and Inukai, Y.
Auxin distribution in lateral root primordium development affects its size and lateral root diameter of rice
Frontiers in Plant Science 13: 834378 (2022.4.13)
26. Kawai, T., Chen, Y., Takahashi, T., Inukai, Y. and Siddique, K. H. M.
Rice genotypes express compensatory root growth with altered root distributions in response to root cutting
Frontiers in Plant Science 13: 830557 (2022.2.28)
25. Tsubasa Kawai, Kyosuke Shibata, Ryosuke Akahoshi, Shunsaku Nishiuchi, Hirokazu Takahashi, Mikio Nakazono, Takaaki Kojima, Misuzu Nosaka-Takahashi, Yutaka Sato, Atsushi Toyoda, Nonawin Lucob-Agustin, Mana Kano-Nakata, Roel R. Suralta, Jonathan M. Niones, Yinglong Chen, Kadambot H. M. Siddique, Akira Yamauchi, Yoshiaki Inukai
WUSCHEL-related homeobox family genes in rice control lateral root primordium size
PNAS 119: e2101846119 (2021.12.30)
24. Gereltsetseg Enkhbat, Phillip Nichols, Kevin Foster, Megan Ryan, Yoshiaki Inukai, William Erskine
Diversity for morphological traits, flowering time and leaf isoflavone content among ecotypes of Trifolium subterraneum L. subsp. yanninicum and their relationships with site of origin
Crop and Pasture Science 72: 1022-1033 (2021.12.1)
23. Hasegawa, T., Wainaina, C. M., Shibata, A., Lucob-Agustin, N., Makihara, D., Kikuta, M., Menge, D. M., Gichuhi, E. W., Samejima, H., Kano-Nakata, M., Kimani, J. M., Musila, R. N., Yamauchi, A. and Inukai, Y.
The outstanding rooting1 mutation gene maintains shoot growth and grain yield through promoting root development in rice under water deficit field environments
Journal of Agronomy and Crop Science (2021.6.17)
22. Hasegawa, T., Lucob-Agustin, N., Yasufuku, K., Kojima, T., Nishiuchi, S., Ogawa, A., Takahashi-Nosaka, M., Kano-Nakata, M., Inari-Ikeda, M., Sato, M., Tsuji, H., Wainaina, C. M., Yamauchi, A. and Inukai, Y.
Mutation of OUR1/OsbZIP1, which encodes a member of the basic leucine zipper transcription factor family, promotes root development in rice through repressing auxin signaling
Plant Science, 306, 110861 (2021.5)
DOI: 10.1016/j.plantsci.2021.110861
21. Suzuki, G., Lucob-Agustin, N., Kashihara, K., Fujii, Y., Inukai, Y. and Gomi, K.
Rice MEDIATOR25, OsMED25, is an essential subunit for jasmonate-mediated root development and OsMYC2-mediated leaf senescence
Plant Science, 306, 110853 (2021.5)
DOI: 10.1016/j.plantsci.2021.110853
20. Enkhbat, G., Ryan, M. H., Foster, K. J., Nichols, P. G. H., Kotula, L., Hamblin, A., Inukai, Y. and Erskine, W.
Large variation in waterlogging tolerance and recovery among the three subspecies of Trifolium subterranean L. is related to root and shoot responses
Plant and Soil (2021.4.29)
DOI: 10.1007/s11104-021-04959-0
19. Lucob-Agustin N., Sugiura D., Kano-Nakata M., Hasegawa T., Roel R. Suralta, Jonathan M. Niones, Inari-Ikeda M., Yamauchi A. and Inukai Y.
The promoted lateral root 1 (plr1) mutation is involved in reduced basal shoot starch accumulation and increased root sugars for enhanced lateral root growth in rice
Plant Science 301: 110667 (2020.12)
DOI: 10.1016/j.plantsci.2020.110667
18. Yamauchi T., Nakazono M., Inukai Y., Tsutsumi N.
Distance-to-time conversion using gompertz model reveals age-dependent aerenchyma formation in rice roots
Plant Physiol. 183: 1424-1427 (2020.6.16)
17. Samejima H., Kikuta M., Katura K., Daniel M. Menge, Emily W. Gichuhi, Cornelius M. Wainaina, John M. Kimani, Inukai Y., Yamauchi A., and Makihara D.
A method for evaluating cold tolerance in rice during reproductive growth stages under natural low-temperature conditions in tropical highlands in Kenya
Plant Production Science 23: 466-476 (2020.6.16)
DOI: 10.1080/1343943X.2020.1777877
16. Agata A., Ando K., Ota S., Kojima M., Takebayashi Y., Takehara S., Doi K., Ueguchi-Tanaka M., Suzuki T., Sakakibara H., Matsuoka M., Ashikari M., Inukai Y., Kitano H. and Hobo.
Diverse panicle architecture results from various combinations of Prl5/GA20ox4 and Pbl6/APO1 alleles
Communication Biology 3: 302 (2020.6.11)
DOI: 10.1038/s42003-020-1036-8
15. Nakamura M., Suzuki T., Yoshida T., Kato T., Oi T., Mitsuya S. and Inukai Y.
The role of Oryza sativa L. 'Milyang 44' husks on the resistance to two rice stink bugs
Breeding Science 70: 402-408 (2020.5.30)
14. Yamauchi T., Tanaka A., Tsutsumi N., Inukai Y. and Nakazono M.
A role for auxin in ethylene-dependent inducible aerenchyma formation in rice roots
Plants 9: 610 (2020.5.11)
13. Lucob-Agustin N., Hasegawa T., Jinno K., Roel R. Suralta, Jonathan M. Niones, Kano-Nakata M., Yamauchi A. and Inukai Y.
Enhanced root system development responses of a newly identified mutation gene promoting lateral root development to various nitrogen conditions in rice
Journal of International Cooperation for Agricultural Development 18: 48-55. (2020.3)
12. Nonawin Lucob-Agustin, Tsubasa Kawai, Misuzu Takahashi-Nosaka, Mana Kano-Nakata, Cornelius M. Wainaina, Tomomi Hasegawa, Mayuko Inari-Ikeda, Moeko Sato, Hiroyuki Tsuji, Akira Yamauchi, Yoshiaki Inukai
WEG1, which encodes a cell wall hydroxyproline-rich glycoprotein, is essential for parental root elongation controlling lateral root formation in rice
Physiologia Plantarum 169(2): 214-227 (2020.1.11)
11. Yamauchi, T., Tanaka, A., Inahashi, H., Nishizawa, N. K., Tsutsumi, N., Inukai, Y. and Nakazono, M.
Fine control of aerenchyma and lateral root development through AUX/IAA- and ARF-dependent auxin signaling
PNAS 116: 20770-20775 (2019.9.23)
10. Niones, J. M., Suralta, R. R., Inukai, Y., Kano-Nakata, M. and Yamauchi, A.
Philipp. Agric. Scientist, 102, 188-198[Print ISSN 0031-7454] (2019.9)
9. Hasegawa, T., Shibata, A., Wainaina, C. M., Lucob-Agustin, N., Makihara, D., Samejima, H., Kikuta, M., Menge, D. M., Kimani, J. M., Yamauchi, A. and Inukai, Y.
Evaluation of a newly identified mutation gene that promotes root elongation for improvement of drought avoidance in rice
Journal of International Cooperation for Agricultural Development 17: 34-40 (2019.3)
8. Menge, D., Onyango, J. C., Yamauchi, A., Kano-Nakata, M., Asanuma, S., Tran, T. T., Inukai, Y., Kikuta, M., and Makihara, D.
Effect of nitrogen application on the expression of drought-induced root plasticity of upland NERICA rice
Plant Production Science, 22, 180-191 (2019.1.21)
DOI: 10.1080/1343943X.2018.1561194
7. Owusu-Nketia, S., Siangliw, J. S., Siangliw, M., Toojinda T., Vanavichit, A., Ratsameejanphen, N., Ruangsiri, M., Sriwiset, S., Suralta, R. R., Inukai, Y., Mitsuya, S., Kano-Nakata, M., Nguyen, D. T. N., Kabuki, T. and Yamauchi, A.
Functional roles of root plasticity and its contribution to water uptake and dry matter production of CSSLs with the genetic background of KDML105 under soil moisture fluctuation
Plant Production Science 21, 266-277 (2018.5.23)
DOI: 10.1080/1343943X.2018.1477509
6. Stella Owusu-Nketia, Yoshiaki Inukai, Satomi Ohashi, Roel Suralta, Kazuyuki Doi, Shiro Mitsuya, Mana Kano-Nakata, Jonathan Niones, Dinh Thi Ngoc Nguyen, Takuya Kabuki, Daigo Makihara, Akira Yamauchi.
Root plasticity under fluctuating soil moisture stress exhibited by backcross inbred line of a rice variety, Nipponbare carrying introgressed segments from KDML105 and detection of the associated QTLs
Plant Production Science 21(2): 106-122 (2018.5.9)
DOI: 10.1080/1343943X.2018.1446759
5. Suralta, R., Kano-Nakata, M., Niones, J. M., Inukai, Y., Kameoka, E., Thiem, T. T., Menge, D. M., Mitsuya, S. and Yamauchi, A.
Root plasticity for maintenance of productivity under abiotic stressed soil environments in rice: Progress and prospects
Field Crops Research, 220, 57-66 (2018.5.1)
DOI: 10.1016/j.fcr.2016.06.023
4. Cornelius Mbathi Wainaina, Daigo Makihara, Mitsuru Nakamura, Akihiro Ikeda, Taro Suzuki, Yuko Mizukami, Toshihiro Nonoyama, Kazuyuki Doi, Mayumi Kikuta, Hiroaki Samejima, Daniel Makori Menge, Akira Yamauchi, Hidemi Kitano, John Munji Kimani, Yoshiaki Inukai.
Identification and validation of QTLs for cold tolerance at the booting stage and other agronomic traits in a rice cross of a Japanese tolerant variety, Hananomai, and a NERICA parent, WAB56-104
Plant Production Science 21(2): 132-143 (2018.2.21)
DOI: 10.1080/1343943X.2018.1440970
3. Shelley, I. J., Watanabe, S., Ozaki, H., Nagasawa, N., Ogawa, A., Takahashi-Nosaka, M., Nishiuchi, S., Yamauchi, A., Kitano, H. and Inukai, Y.
Analysis of the rrl3 mutants reveals the importance of arginine biosynthesis in the maintenance of root apical meristem in rice
Journal of Plant Studies 7: 36-46. (Print ISSN 1927-0461, Online ISSN 1927-047X) (2018.2.20)
2. Inahashi, H., Shelley, I. J., Yamauchi, T., Nishiuchi, S., Takahashi-Nosaka, M., Matsunami, M., Ogawa, A., Noda, Y. and Inukai, Y.
OsPIN2, which encodes a member of the auxin efflux carrier proteins, is involved in root elongation growth and lateral root formation patterns via the regulation of auxin distribution in rice
Physiologia Plantarum 164: 216-225 (2018.2.18)
1. Yoshimura, M., Sato, A., Kuwata, K., Inukai, Y., Kinoshita, T., Itami, K., Tsuchiya, Y. and Hagihara, S.
Discovery of shoot branching regulator targeting strigolactone receptor DWARF14
ACS Central Science 4: 230-234 (2018.2.7)
原著論文
著書・総説・その他
11. 犬飼義明, 河合翼
根の生物的な起源
根研究学会 編 図解でよくわかる 根のきほん 誠文堂新光社, 東京. pp10-11 (2024.10)
10. 山内卓樹, 犬飼義明
イネ科：イネ 水稲と陸稲
根研究学会 編 図解でよくわかる 根のきほん 誠文堂新光社, 東京. pp50-53 (2024.10)
9. 犬飼義明
根の研究への“憧れ”や“想い”とその“支え”
根の研究，33: 93-99 (2024.4)
8. Kano-Nakata, M., Mitsuya, S., Inukai, Y., Suralta, R., Niones, J., Kawai, T. and Yamauchi, A.
Root plasticity for adaptation and productivity of crop plants grown under various water stresses.
In Sakagami, J. and Nakazono, M. (eds.), Responses of Plants to Soil Flooding. Springer, pp37-63 (2024.5)
DOI: 10.1007/978-981-99-9112-9_3
7. 犬飼義明, 仲田麻奈
イネの根っこで国際交流が広がっているの？
中野明正 監修 根っこの不思議な世界 〜根っこのふか〜い世界〜 文献出版, 東京. pp16-17 (2024.1)
6. 犬飼義明, 河合翼, 木富悠花
中野明正 監修 根っこの不思議な世界 〜根っこってなんだろう〜 文献出版, 東京. pp6-7 (2023.8)
5. 犬飼義明・仲田（狩野）麻奈 編
農学分野の国際協力キャリアパスについて考える. 農学分野で国際協力を職業にしたいなら -先人からの具体的なアドバイス-
アイペック，東京．総65項 (2021.4)
4.Lucob-Agustin, N., Kawai, T., Kano-Nakata, M., Suralta, R. R., Niones, J. M., Hasegawa, T., Inari-Ikeda, M., Yamauchi, A. and Inukai, Y.
Morpho-physiological and molecular mechanisms of phenotypic root plasticity for rice adaptation to water stress conditions
Breeding Science, 71(1), 20-29.(Online ISSN : 1347-3735, Print ISSN : 1344-7610) (2021.1.30)
DOI: 10.1270/jsbbs.20106
3. 山内卓樹・藤井壮太・岡本昌憲・田中佑・水多陽子・晝間敬・吉田健太郎・山本英司・大西孝幸・犬飼義明
フィールドにおける生命現象の解明とその制御に向けた基盤技術の創出
育種学研究 22: 75-82.(Online ISSN:1348-1290, Print ISSN:1344-7629) (2020.6.3)
2. Makihara, D., Kimani, J., Samejima, H., Kikuta, M., Menge, D., Doi, K., Inukai, Y., Maekawa, M., Masunaga, T., Sasaki, Y., Katsura, K., Kitano, H., Mitsuya, S., Kano-Nakata, M., Wainaina, C., Gichuhi, E., Njinju, S., Kagito, S., Magoti, R., Wakaria, M., Kundu, C., and Yamauchi A.
Development of rice breeding and cultivation technology tailored for Kenya's environment
Crop Production under Stressful Conditions - Application of Cutting-edge Science and Technology in Developing Countries. Springer p27-47. Kokubun, M. and Asanuma, S. (Eds.)
(eBook ISBN:978-981-10-7308-3, Hardcover ISBN:978-981-10-7307-6) (2018.8.2)
DOI: 10.1007/978-981-10-7308-3_3
1. Suralta, R., Kano-Nakata, M., Niones, J. M., Inukai, Y., Kameoka, E., Thiem, T. T., Menge, D. M., Mitsuya, S. and Yamauchi, A.
Root plasticity for maintenance of productivity under abiotic stressed soil environments in rice: Progress and prospects Field Crops Research, 220, 57-66 (2018.5.1)