Molecular markers of major QTL for rice heading period and application of molecular marker

The invention discloses molecular markers of major QTL for the rice heading period and application of the molecular marker.The molecular markers include an H70 primer pair and a 301K primer pair, wherein the H70 primer pair is composed of a sequence shown as SEQ ID No.1 and a sequence shown as SEQ ID No.2; the 301K primer pair is composed of a sequence shown as SEQ ID No.3 and a sequence shown as SEQ ID No.4; the two molecular markers are closely linked with QTL for the heading period and can be used for authenticating and breeding varieties for the rice heading period.The invention further discloses a method for authenticating and breeding the varieties for the rice heading period through the molecular markers.The major QTL which are located on the galianconism of the fifth chromosome and used for controlling the heading period are precisely positioned for the first time, and the InDel markers H70 and 301K which are closely linked are obtained.Whether variation of the major QTL for the heading period exists or not can be judged and authenticated just by detecting the characteristics of amplified bands of the markers, the phenotype of rice in the heading period can be predicted, and the molecular markers are used for guiding breeding work for an improvement in the rice heading period.