Identification of major QTLs for yield-related traits with improved genetic map in wheat.

ABSTRACT:

Introduction

Identification of stable major quantitative trait loci (QTLs) for yield-related traits is important for yield potential improvement in wheat breeding.

Methods

In the present study, we genotyped a recombinant inbred line (RIL) population using the Wheat 660K SNP array and constructed a high-density genetic map. The genetic map showed high collinearity with the wheat genome assembly. Fourteen yield-related traits were evaluated in six environments for QTL analysis.

Results and discussion

A total of 12 environmentally stable QTLs were identified in at least three environments, explaining up to 34.7% of the phenotypic variation. Of these, QTkw-1B.2 for thousand kernel weight (TKW), QPh-2D.1 (QSl-2D.2/QScn-2D.1) for plant height (PH), spik

SUBMITTER: Ma F 

PROVIDER: S-EPMC10063875 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature