Caps markers associated with soybean hundred kernel weight and uses thereof

Abstract

The application provides a CAPS marker related to soybean hundred-grain weight and application thereof. The CAPS marker related to soybean hundred-grain weight of the application contains a nucleotide sequence with a polymorphism of A or C at the 673th position of the sequence of the soybean Glyma.19G194500 gene as shown in SEQ ID NO:1. According to the marker, a method for identifying and breeding soybean hundred-grain weight varieties is established, and by detecting the genotype of the Glyma.19G194500 gene, materials carrying large-grain allelic variations of the gene can be selected, time- and labor-consuming phenotype identification can be avoided, and by screening breeding materials through genotypes, the selection efficiency of large-grain varieties in the breeding process is greatly improved, the breeding time is shortened, and the effect on the cultivation of large-grain varieties is remarkable.