2009 Fiscal Year Final Research Report
Elucidation of speciation process of amphidiploid species in Brassica
| Project/Area Number |
19208001
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Breeding science
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| Research Institution | Tohoku University |
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Principal Investigator |
NISHIO Takeshi Tohoku University, 大学院・農学研究科, 教授 (30301039)
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| Co-Investigator(Kenkyū-buntansha) |
KITASHIBA Hiroyasu 東北大学, 大学院・農学研究科, 准教授 (80431542)
TAKAHATA Yoshihito 岩手大学, 農学部, 教授 (10133894)
YOKOI Shuji 岩手大学, 農学部, 准教授 (80346311)
KANEKO Yukio 宇都宮大学, 農学部, 教授 (40241848)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 種間不和合性 / 雑種胚崩壊 / 自家不和合性 / ゲノム再配列 / 遺伝子発現制御 |
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| Research Abstract |
Cooperative research of three laboratories was performed to elucidate the speciation process of amphidiploid species in genus Brassica by investigating genes responsible for interspecific incompatibility and breakdown of hybrid embryos and mechanisms of self-compatibility. We identified QTLs of the strengths of interspecific incompatibility and embryo breakdown, which are clues to identification of the genes. Several S genotypes were found in three amphidiploid species, and mutations of dominant S haplotypes were considered to be the cause of self-compatibility.
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