2010 Fiscal Year Final Research Report
Isolation and characterization of genome barrier genes in rice
| Project Area | Genome Barriers in Plant Reproduction |
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| Project/Area Number |
18075009
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| Research Category |
Grant-in-Aid for Scientific Research on Priority Areas
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| Allocation Type | Single-year Grants |
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| Review Section |
Biological Sciences
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| Research Institution | National Institute of Genetics |
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Principal Investigator |
KURATA Nori National Institute of Genetics, 系統生物研究センター, 教授 (90178088)
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| Co-Investigator(Kenkyū-buntansha) |
KUBO Takahiko 国立遺伝学研究所, 系統生物研究センター, 助教 (00370148)
NONOMURA Ken-ichi 国立遺伝学研究所, 実験圃場, 准教授 (10291890)
TERADA Rie 名城大学, 農学部, 教授 (30137799)
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| Project Period (FY) |
2006 – 2010
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| Keywords | ゲノム障壁 / イネ / 生殖的隔離 |
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| Research Abstract |
We performed isolation and functional analyses of four paired genes that interact with each other to cause reproductive barriers in inter-subspecific crosses between japonica and indica. These reproductive barrier genes showed various phenotypes including fertilization incompatibility, pollen germination defect, female sterility, and gamete sterility. We cloned a pair of duplicate genes, called DPL1 and DPL2, which cause the pollen germination defect. It was revealed that DPL1 and DPL2 are well conserved in dicot as well as monocot model plants, and many plant species have a duplicated gene copies on their nuclear genome.
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