Intraspecific DNA methylation polymorphism in the non-edible oilseed plant castor bean.
He, Shan; Xu, Wei; Li, Fei; Wang, Yue; Liu, Aizhong
2017
Source PublicationPlant diversity
ISSN2468-2659
Volume39Issue:5Pages:300-307
AbstractInvestigation of the relationships of phenotypic and epigenetic variations might be a good way to dissect the genetic or molecular basis of phenotypic variation and plasticity in plants. Castor bean (Ricinus communis L.), an important non-edible oilseed crop, is a mono-species genus plant in the family Euphorbiaceae. Since it displays rich phenotypic variations with low genetic diversity, castor bean is a good model to investigate the molecular basis of phenotypic and epigenetic variations. Cytosine DNA methylation represents a major molecular mechanism of epigenetic occurrence. In this study, epigenetic diversity of sixty landrace accessions collected worldwide was investigated using the methylation-sensitive amplification polymorphism (MSAP) technique. Results showed that the epigenetic diversity (based on the polymorphism of DNA methylated loci) exhibited a medium variation (Ne=1.395, He=0.242, I=0.366) at the population level though the variation was great, ranging from 3.80% to 34.31% among accessions. Both population structure analysis and the phylogenetic construction (using the neighbor-joining criteria) revealed that the two main clades were identified, but they did not display a distinct geographic structure. After inspecting the location of polymorphic methylated loci on genome we identified that the polymorphic methylated loci occur widely in nuclear and organelle genomes. This study provides new data to understand phenotypic and epigenetic variations in castor bean.
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/64828
Collection植物化学与西部植物资源持续利用国家重点实验室
Recommended Citation
GB/T 7714
He, Shan,Xu, Wei,Li, Fei,et al. Intraspecific DNA methylation polymorphism in the non-edible oilseed plant castor bean.[J]. Plant diversity,2017,39(5):300-307.
APA He, Shan,Xu, Wei,Li, Fei,Wang, Yue,&Liu, Aizhong.(2017).Intraspecific DNA methylation polymorphism in the non-edible oilseed plant castor bean..Plant diversity,39(5),300-307.
MLA He, Shan,et al."Intraspecific DNA methylation polymorphism in the non-edible oilseed plant castor bean.".Plant diversity 39.5(2017):300-307.
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