Genomic insights into the origin, domestication and genetic basis of agronomic traits of castor bean.

ABSTRACT:

Background

Castor bean (Ricinus communis L.) is an important oil crop, which belongs to the Euphorbiaceae family. The seed oil of castor bean is currently the only commercial source of ricinoleic acid that can be used for producing about 2000 industrial products. However, it remains largely unknown regarding the origin, domestication, and the genetic basis of key traits of castor bean.

Results

Here we perform a de novo chromosome-level genome assembly of the wild progenitor of castor bean. By resequencing and analyzing 505 worldwide accessions, we reveal that the accessions from East Africa are the extant wild progenitors of castor bean, and the domestication occurs ~ 3200 years ago. We demonstrate that significant genetic differentiation between wild populations in Kenya an

SUBMITTER: Xu W 

PROVIDER: S-EPMC8056531 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature