Superior haplotypes for haplotype-based breeding for drought tolerance in pigeonpea (Cajanus cajan L.).

ABSTRACT: Haplotype-based breeding, a recent promising breeding approach to develop tailor-made crop varieties, deals with identification of superior haplotypes and their deployment in breeding programmes. In this context, whole genome re-sequencing data of 292 genotypes from pigeonpea reference set were mined to identify the superior haplotypes for 10 drought-responsive candidate genes. A total of 83, 132 and 60 haplotypes were identified in breeding lines, landraces and wild species, respectively. Candidate gene-based association analysis of these 10 genes on a subset of 137 accessions of the pigeonpea reference set revealed 23 strong marker-trait associations (MTAs) in five genes influencing seven drought-responsive component traits. Haplo-pheno analysis for the strongly associated genes resulted

SUBMITTER: Sinha P 

PROVIDER: S-EPMC7680530 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature