Ricinus communis isolate:WT05 Genome sequencing and assembly. Ricinus communis isolate:WT05

we collected and identified a superior wild castor , with higher oil content and larger seed size and weight compared with cultivars. This superior wild castor may provide important germplasm resources for the cultivation of new varieties of castor bean with high yield and high oil content. To investigate the genetic variations that controls the advantage phenotypes in the superior wild castor ,we assembled a chromosome-scale genomes of the superior wild castor using the Super-long read sequencing of Oxford nanopore technology and Hi-C sequencing, and performed comparative genomic and evolutionary studies with the inbred cultivar genome, Hale(ref) (NSL4773).Our research provides an important resource for future molecular breeding and evolutionary studies.

本研究收集并鉴定了一份优异野生蓖麻种质，相较于现有栽培品种，其含油量更高，种子粒型更大、粒重更优。该种质可为高产高油蓖麻新品种的培育提供重要的种质资源。为解析调控该种质优势表型的遗传变异机制，我们利用牛津纳米孔（Oxford Nanopore）超长读长测序技术与Hi-C测序技术，完成了该种质的染色体级全基因组组装，并将其与自交系栽培品种Hale（参考基因组，NSL4773）的基因组开展了比较基因组学与进化生物学分析。本研究为后续的分子育种与进化生物学研究提供了重要的研究资源。