首页|Whole-genome Duplication Reshaped Adaptive Evolution in A Relict Plant Species,Cyclocarya paliurus
Whole-genome Duplication Reshaped Adaptive Evolution in A Relict Plant Species,Cyclocarya paliurus
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
万方数据
维普
Cyclocarya paliurus is a relict plant species that survived the last glacial period and shows a population expansion recently.Its leaves have been traditionally used to treat obesity and diabetes with the well-known active ingredient cyclocaric acid B.Here,we presented three C.paliurus gen-omes from two diploids with different flower morphs and one haplotype-resolved tetraploid assem-bly.Comparative genomic analysis revealed two rounds of recent whole-genome duplication events and identified 691 genes with dosage effects that likely contribute to adaptive evolution through enhanced photosynthesis and increased accumulation of triterpenoids.Resequencing analysis of 45 C.paliurus individuals uncovered two bottlenecks,consistent with the known events of environ-mental changes,and many selectively swept genes involved in critical biological functions,including plant defense and secondary metabolite biosynthesis.We also proposed the biosynthesis pathway of cyclocaric acid B based on multi-omics data and identified key genes,in particular gibberellin-related genes,associated with the heterodichogamy in C.paliurus species.Our study sheds light on evolutionary history of C.paliurus and provides genomic resources to study the medicinal herbs.
Nanjing Forestry University,Co-Innovation Center for Sustainable Forestry in Southern China,Nanjing 210037,China
Shenzhen Branch,Guangdong Laboratory for Lingnan Modern Agriculture,Genome Analysis Laboratory of the Ministry of Agriculture,Agricultural Genomics Institute at Shenzhen,Chinese Academy of Agricultural Sciences,Shenzhen 518120,China
Center for Genomics and Biotechnology,Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology,Key Laboratory of Genetics,Breeding and Multiple Utilization of Crops,Ministry of Education,Fujian Agriculture and Forestry University,Fuzhou 350002,China
National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaKey R&D Program of Jiangsu ProvincePriority Academic Program Development of Jiangsu Higher Education Institutions(PAPD),China
万方数据
维普
