Gene mapping data of nine agronomic traits and genome assembly data of a foxtail millet RIL population

Foxtail millet (Setaria italica) provides food and fodder in semi-arid regions and infertile land. Resequencing of 184 foxtail millet recombinant inbred lines (RILs) was performed to aid the research on species improvement. Bin map were constructed based on the RILs recombination data. By anchoring some unseated scaffolds and filling gap, we update two original millet reference genomes Zhanggu and Yugu to the second edition. Gene mapping of nine agronomic traits were done based on this RIL population. The genome resequencing and QTL mapping provided important tools for foxtail millet research and breeding. Resequencing of the RILs could also provide an effective way for high quantity genome assembly and gene identification.

谷子（Setaria italica）是半干旱与贫瘠土地地区的重要粮食与饲用作物。本研究对184份谷子重组自交系（recombinant inbred lines, RILs）开展全基因组重测序，以支撑谷子品种改良相关研究。基于该RIL群体的重组数据构建了bin遗传图谱；通过锚定部分未定位的序列支架（scaffold）并填补基因组缺口，将原有两个谷子参考基因组“张谷”与“豫谷”升级至第二版。依托该RIL群体，研究人员完成了9个农艺性状的基因定位工作。基因组重测序与数量性状基因座（quantitative trait locus, QTL）定位技术，为谷子的基础研究与育种实践提供了关键工具。此外，对RIL群体进行重测序，也可为高质量基因组组装与基因鉴定提供有效路径。