Development of introgression lines and mapping of <i>qGW2</i>, a novel QTL that confers grain width, in rice (<i>Oryza sativa</i> L.).

ABSTRACT: Rice grain size is a key determinant of both grain yield and quality. Identification of favorable alleles for use in rice breeding may help to meet the demand for increased yield. In this study, we developed a set of 210 introgression lines (ILs) by using indica variety Huanghuazhan as the donor parent and erect-panicle japonica rice variety Wuyujing3R as the recurrent parent. A total of 133 ILs were selected for high-throughput sequencing. Using specific-locus amplified fragment (SLAF) sequencing technology, 10,103 high-quality SLAF labels evenly distributed on 12 chromosomes were obtained and selected for subsequent analysis. Using a high-density map, quantitative trait locus (QTL) mapping of grain size-related traits was performed, and a total of 38 QTLs were obtained in t

SUBMITTER: Zhao X 

PROVIDER: S-EPMC10825081 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature