Fine-mapping of qTGW2, a quantitative trait locus for grain weight in rice (Oryza sativa L.).

ABSTRACT:

Background

Grain weight is a grain yield component, which is an integrated index of grain length, width and thickness. They are controlled by a large number of quantitative trait loci (QTLs). Besides major QTLs, minor QTLs play an essential role. In our previous studies, QTL analysis for grain length and width was performed using a recombinant inbred line population derived from rice cross TQ/IRBB lines. Two major QTLs were detected, which were located in proximity to GS3 and GW5 that have been cloned. In the present study, QTLs for grain weight and shape were identified using rice populations that were homozygous at GS3 and GW5.

Method

Nine populations derived from the indica rice cross TQ/IRBB52 were used. An F_10:11population n

SUBMITTER: Zhang H 

PROVIDER: S-EPMC7060756 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature