Abstract:

Mapping of quantitative trait loci (QTL) and gene × environment interaction were used to research days to heading from a RIL (recombinant inbred lines) including 130 lines deriving from Milyang 46 and FJCD during the grain-filling. This research work carried in Wuyishan and Putian. In Wuyishan, only one additive QTL associated with days of heading were detected, located on chromosome 6, explained 25.63%; one QTL showed significant additive × environment interaction effect, while the contribution of GE interaction effect to phenotypic variation is almost to zero. In Putian, we got nothing with days to heading. This illustrates QTLs with days to heading have environmental specificity.