Genomic Architecture of Yield Performance of an Elite Rice Hybrid Revealed by its Derived Recombinant Inbred Line and Their Backcross Hybrid Populations.

ABSTRACT:

Background

Since its development and wide adoption in China, hybrid rice has reached the yield plateau for more than three decades. To understand the genetic basis of heterosis in rice and accelerate hybrid rice breeding, the yield performances of the elite rice hybrid, Quan-you-si-miao (QYSM) were genetically dissected by whole-genome sequencing, large-scale phenotyping of 1061 recombined inbred lines (RILs) and 1061 backcross F₁ (BCF₁) hybrids derived from QYSM's parents across three environments and gene-based analyses.

Results

Genome-wide scanning of 13,847 segregating genes between the parents and linkage mapping based on 855 bins across the rice genome and phenotyping experiments across three environments resulted in identification of large number

SUBMITTER: Zhang F 

PROVIDER: S-EPMC9526777 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature