Genome-Wide Association Mapping of Major Root Length QTLs Under PEG Induced Water Stress in Wheat.

ABSTRACT: Roots are vital plant organs that determine adaptation to various soil conditions. The present study evaluated a core winter wheat collection for rooting depth under PEG induced early stage water stress and non-stress growing conditions. Analysis of phenotypic data indicated highly significant (p < 0.01) variation among genotypes. Broad sense heritability of 59 and 73% with corresponding genetic gains of 7.6 and 9.7 (5% selection intensity) were found under non-stress and stress conditions, respectively. The test genotypes were grouped in to three distinct clusters using unweighted pair group method with arithmetic mean (UPGMA) clustering based on maximum Euclidian distance. The first three principal components gave optimum mixed linear model for genome wide association study (GWAS). Linka

SUBMITTER: Ayalew H 

PROVIDER: S-EPMC6281995 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature