| Budget Amount *help |
¥49,530,000 (Direct Cost: ¥38,100,000、Indirect Cost: ¥11,430,000)
Fiscal Year 2009: ¥14,300,000 (Direct Cost: ¥11,000,000、Indirect Cost: ¥3,300,000)
Fiscal Year 2008: ¥14,300,000 (Direct Cost: ¥11,000,000、Indirect Cost: ¥3,300,000)
Fiscal Year 2007: ¥20,930,000 (Direct Cost: ¥16,100,000、Indirect Cost: ¥4,830,000)
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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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