水稻品种南京11抽穗期的基因型分析

Genotypic Analysis of Heading Time in Rice Cultivar Nanjing 11

用抽穗期感光基因型已知的秋光（e1e1 e2e2 e3e3 Se1eSe1e）、越光（E1E1 E2E2 e3e3 Se1eSe1e）、日本晴（E1E1 e2e2 e3e3 Se1Se1）和日光（E1E1 E2E2 e3e3 Se1Se1）作鉴别品种,分析了中籼水稻品种南京11的抽穗期基因型。结果表明,南京11的抽穗期感光基因型为 E1E1e2e2E3E3Se1Se1,同时还存在1对隐性感光抑制基因i-Sel;进一步利用QTL近等基因系NIL（Hdi）和NIL（Hd4）进行的试验也验证了南京11存在2个显性的主效感光基因E1和Se1。

The genotype of heading time in Nanjing 11, an Indica , was analyzed by crossing with tester varieties, Akihikari(e1e1 e2e2 e3e3 SeleSele), Koshihikari(E1E1E2E2 e3e3 SeleSele), Nipponbare(E1E1 e2e2 e3e3 SelSel ) and Hinohikari ( E1E1E2E2 e3e3 SelSel ), of which the genotypes of heading time were well known. The results showed genotype of heading time in Nanjingll was E1E1e2e2 E3E3 SelSel and carried a recessive inhibitor i-Sel for photoperiod-sensitivity as well. Meanwhile, the two photoperiod-sensitive genes, E1 and Sel , in Nanjingll were also identified by crassing with QTL nearly isogenic lines, NIL(Hd1)and NIL(Hd4).