Genetic Dissection of Epistatic Interactions Contributing Grain Yield Variability in Rice under Drought.

ABSTRACT:

Aims

The aim of the present study was to evaluate the performance of 'high'-'low' yielding pyramided lines (PLs), having the same combinations of qDTYs in Samba Mahsuri, MR219 and IR64-Sub1 genetic backgrounds, and to understand the genetic interactions among QTL and/with genetic background affecting grain yield.

Background

Epistasis regulates the expression of traits governed by several major/minor genes/QTL. Multiple pyramided lines (PLs) with the same grain yield QTL (qDTYs) combinations but possessing grain yield variability under different levels of reproductive stage drought stress were identified in different rice genetic backgrounds at International Rice Research Institute (IRRI).

Objectives

The objectives of the present study were to evaluate th

SUBMITTER: Majumder RR 

PROVIDER: S-EPMC8886627 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature