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Genomic insights into the origin, domestication and genetic basis of agronomic traits of castor bean
Xu,Wei; Wu,Di; Yang,Tianquan; Sun,Chao; Wang,Zaiqing; Han,Bing; Wu,Shibo; Yu,Anmin; Chapman,Mark A.; Muraguri,Sammy; Tan,Qing; Wang,Wenbo; Bao,Zhigui; Liu,Aizhong; Li,De-Zhu
2021
Source PublicationGENOME BIOLOGY
ISSN1474-760X
Volume22Issue:1Pages:113
AbstractBackground: 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 similar to 3200 years ago. We demonstrate that significant genetic differentiation between wild populations in Kenya and Ethiopia is associated with past climate fluctuation in the Turkana depression similar to 7000 years ago. This dramatic change in climate may have caused the genetic bottleneck in wild castor bean populations. By a genome-wide association study, combined with quantitative trait locus analysis, we identify important candidate genes associated with plant architecture and seed size.Conclusions: This study provides novel insights of domestication and genome evolution of castor bean, which facilitates genomics-based breeding of this important oilseed crop and potentially other tree-like crops in future.
KeywordGenomic evolution Domestication Population genetics GWAS Castor bean SINGLE NUCLEOTIDE POLYMORPHISMS SEED SIZE PHYLOGENETIC ANALYSIS CELL ELONGATION PLANT-GROWTH ARABIDOPSIS ANNOTATION PROVIDES YIELD TOOL
DOI10.1186/s13059-021-02333-y
WOS IDWOS:000641255300001
Citation statistics
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/73478
Collection中国科学院昆明植物研究所
Affiliation1.Southwest Forestry Univ, Minist Educ, Key Lab Forest Resource Conservat & Utilizat Sout, Kunming 650224, Yunnan, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Kunming 650201, Yunnan, Peoples R China
3.Chinese Acad Sci, Kunming Inst Bot, Yunnan Key Lab Wild Plant Resources, Dept Econ Plants & Biotechnol, Kunming 650201, Yunnan, Peoples R China
4.Chapman, Mark A.] Univ Southampton, Biol Sci, Southampton SO17 1BJ, Hants, England
5.Chapman, Mark A.] Univ Southampton, Ctr Underutilised Crops, Southampton SO17 1BJ, Hants, England
6.Shanghai OE Biotech Co Ltd, Shanghai 201114, Peoples R China
Recommended Citation
GB/T 7714
Xu,Wei,Wu,Di,Yang,Tianquan,et al. Genomic insights into the origin, domestication and genetic basis of agronomic traits of castor bean[J]. GENOME BIOLOGY,2021,22(1):113.
APA Xu,Wei.,Wu,Di.,Yang,Tianquan.,Sun,Chao.,Wang,Zaiqing.,...&Li,De-Zhu.(2021).Genomic insights into the origin, domestication and genetic basis of agronomic traits of castor bean.GENOME BIOLOGY,22(1),113.
MLA Xu,Wei,et al."Genomic insights into the origin, domestication and genetic basis of agronomic traits of castor bean".GENOME BIOLOGY 22.1(2021):113.
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