OsLG3 contributing to rice grain length and yield was mined by Ho-LAMap.

ABSTRACT:

Background

Most agronomic traits in rice are complex and polygenic. The identification of quantitative trait loci (QTL) for grain length is an important objective of rice genetic research and breeding programs.

Results

Herein, we identified 99 QTL for grain length by GWAS based on approximately 10 million single nucleotide polymorphisms from 504 cultivated rice accessions (Oryza sativa L.), 13 of which were validated by four linkage populations and 92 were new loci for grain length. We scanned the Ho (observed heterozygosity per locus) index of coupled-parents of crosses mapping the same QTL, based on linkage and association mapping, and identified two new genes for grain length. We named this approach as Ho-LAMap. A simulation study of six known genes showed that Ho-LAMap c

SUBMITTER: Yu J 

PROVIDER: S-EPMC5383996 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature