Analysis of short fruiting branch gene and Marker-assisted selection with SNP linked to its trait in upland cotton

摘要

cqvip:Background: With the rapid development of genomics, many functional genes have been targeted. Molecular marker assisted selection can accelerate the breeding process by linking selection to functional genes.Methods: In a study of upland cotton(Gossypium hirsutum L.), the F_2 segregated population was constructed by crossing X1570(short branches) with Ekangmian-13(long branches) to identify the short fruiting branch gene and marker-assisted selection with SNP(Single Nucleotide Polymorphisms, SNP) linked to its trait.Result: The result demonstrated that linked SSR marker BNL3232 was screened by BSA(Bulked segregant analysis,BSA) method; one SNP locus was found, which was totally separated from the fruiting branches trait in upland cotton.Conclusion: It was verified that this SNP marker could be used for molecular assisted selection of cotton architecture.