Discerning combining ability loci for divergent environments using chromosome segment substitution lines (CSSLs) in pearl millet.

ABSTRACT: Pearl millet is an important crop for arid and semi-arid regions of the world. Genomic regions associated with combining ability for yield-related traits under irrigated and drought conditions are useful in heterosis breeding programs. Chromosome segment substitution lines (CSSLs) are excellent genetic resources for precise QTL mapping and identifying naturally occurring favorable alleles. In the present study, testcross hybrid populations of 85 CSSLs were evaluated for 15 grain and stover yield-related traits for summer and wet seasons under irrigated control (CN) and moisture stress (MS) conditions. General combining ability (GCA) and specific combining ability (SCA) effects of all these traits were estimated and significant marker loci linked to GCA and SCA of the traits were identified

SUBMITTER: Basava RK 

PROVIDER: S-EPMC6713397 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature