Identification of submergence tolerance QTLs/genes during seed germination in 432 rice varieties by GWAS.

ABSTRACT:

Background

Submergence stress is a major obstacle limiting the application of direct seeding in rice cultivation. Therefore, understanding the genetic basis of submergence tolerance in rice is of great significance for identifying favorable genes and developing superior rice varieties. However, few studies have focused on submergence tolerance during seed germination; thus, the genetic basis of submergence tolerance at this stage deserves more attention.

Results

In this study, a natural population of 432 rice varieties collected from 25 provinces in China and other countries was used for the first time to evaluate submergence tolerance during seed germination. Population structure analysis revealed that this population was divided into two groups and was rich in genetic dive

SUBMITTER: Liu D 

PROVIDER: S-EPMC12400654 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature