Genome-wide pedigree analysis of elite rice Shuhui 527 reveals key regions for breeding

• 作者: CAO Ye CHEN Dan DENG Qi-ming LI Ping LI Shuang-cheng LI Wen-jie LI Xue-mei LIU Huai-nian REN Yun TAO Luo WANG Ling-xia WANG Shi-quan YUAN Guo-qiang ZHENG Ai-ping ZHU Jun
• 来源期刊: 农业科学学报（英文）
• 年，卷（期）: 2021,（1）
• 所属期刊栏目: Crop Science
• 页码范围: 35-45
• 页数: 11页
• 语种: 英文
• DOI: 10.1016/S2095-3119(20)63256-7

摘要

Hybrid rice significantly contributes to the food supply worldwide. Backbone parents play important roles in elite hybrid rice breeding systems. In this study, we performed pedigree-based analysis of the elite backbone parent rice variety, namely, Shuhui 527 (SH527, Oryza sativa), to exploit key genome regions during breeding. Twenty-four cultivars (including SH527, its six progenitors and 17 derived cultivars) were collected and analyzed with high-density single nucleotide polymorphism (SNP) array. Scanning all these cultivars with genome-wide SNP data indicated the unique contributions of progenitors to the SH527 genome and identified the key genomic regions of SH527 conserved within all its derivatives. These findings were further supported by known rice yield-related genes or unknown QTLs identified by genome-wide association study. This study reveals several key regions for SH527 and provides insights into hybrid rice breeding.