Search of nuclear factors that control the paternal inheritance of mitochondrial plasmid

为了阐明油菜籽线粒体质粒父系遗传的机制，我进行了QTL分析。以质粒转移率不同的油菜杂交品种“Norin 16”和“Westar”的F2群体（102个个体）为材料，构建了覆盖1374.7 cM的遗传图谱，在C2、C9和A5染色体上检测到3个qtl。这些结果表明，线粒体质粒的父系遗传是由少数核基因控制的。

To elucidate the mechanism of paternal inheritance of rapeseed mitochondrial plasmid, I conducted the QTL analysis. Using the the F2 population (102 individuals) derived from the cross rapeseed varieties with different plasmid transfer rate, "Norin 16" and "Westar", genetic map covering 1374.7 cM was constructed and then three QTLs were detected on the chromosomes, C2, C9 and A5. These results indicated that the paternally inheritance of mitochondrial plasmid is controlled by relatively a few nuclear genes.