Whole-genome Duplication Reshaped Adaptive Evolution in A Relict Plant Species,Cyclocarya paliurus  被引量:7

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作  者:Yinquan Qu Xulan Shang Ziyan Zeng Yanhao Yu Guoliang Bian Wenling Wang Li Liu Li Tian Shengcheng Zhang Qian Wang Dejin Xie Xuequn Chen Zhenyang Liao Yibin Wang Jian Qin Wanxia Yang Caowen Sun Xiangxiang Fu Xingtan Zhang Shengzuo Fang 

机构地区:[1]Nanjing Forestry University,Co-Innovation Center for Sustainable Forestry in Southern China,Nanjing 210037,China [2]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 [3]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

出  处:《Genomics, Proteomics & Bioinformatics》2023年第3期455-469,共15页基因组蛋白质组与生物信息学报(英文版)

基  金:funded by the National Natural Science Foundation of China(Grant Nos.31971642,32271859,32071750,31470637,and 32222019);This work was also supported by the Key R&D Program of Jiangsu Province(Grant No.BE2019388);the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD),China.

摘  要: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 genomes from two diploids with different flower morphs and one haplotype-resolved tetraploid assembly.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 environmental 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 gibberellinrelated 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.

关 键 词:Cyclocarya paliurus GENOMICS Whole-genome duplication TRITERPENOID RESEQUENCING 

分 类 号:Q811.4[生物学—生物工程]

 

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