Paleo-polyploidization in Lycophytes

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摘要Lycophytes and seed plants constitute the typical vascular plants. Lycophytes have been thought to have no paleo-polyploidization although the event is known to be critical for the fast expansion of seed plants. Here, genomic analyses including the homologous gene dot plot analysis detected multiple paleo-polyploidization events, with one occurring approximately 13-15 million years ago (MYA) and another about 125-142 MYA, during the evolution of the genome of Selagi-nella moellendorffii, a model lycophyte. In addition, comparative analysis of reconstructed ancestral genomes of lycophytes and angiosperms suggested that lycophytes were affected by more paleo-polyploidization events than seed plants. Results from the present genomic analyses indicate that paleo-polyploidization has contributed to the successful establishment of both lineages—lycophytes and seed plants—of vascular plants.

作者 Jinpeng Wang ^[1] Jigao Yu ^[2] Pengchuan Sun ^[3] Chao Li ^[3] Xiaoming Song ^[4] Tianyu Lei ^[3] Yuxian Li ^[3] Jiaqing Yuan ^[3] Sangrong Sun ^[3] Hongling Ding ^[3] Xueqian Duan ^[3] Shaoqi Shen ^[3] Yanshuang Shen ^[3] Jing Li ^[3] Fanbo Meng ^[3] Yangqin Xie ^[3] Jianyu Wang ^[3] Yue Hou ^[3] Jin Zhang ^[3] Xianchun Zhang ^[5] Xiu-Qing Li ^[6] Andrew H.Paterson ^[7] Xiyin Wang ^[4] 学术成果认领

作者单位 Center for Computational Biology and Genomics,and School of Life Sciences,North China University of Science and Technology,Tangshan 063200,China;National Key Laboratory for North China Crop Improvement and Regulation,Agriculture University of Hebei,Baoding 071001,China;State Key Laboratory of Systematic and Evolutionary Botany,Institute of Botany,Chinese Academy of Science,Beijing 100093,China ^[1] Center for Computational Biology and Genomics,and School of Life Sciences,North China University of Science and Technology,Tangshan 063200,China;State Key Laboratory of Systematic and Evolutionary Botany,Institute of Botany,Chinese Academy of Science,Beijing 100093,China ^[2] Center for Computational Biology and Genomics,and School of Life Sciences,North China University of Science and Technology,Tangshan 063200,China ^[3] Center for Computational Biology and Genomics,and School of Life Sciences,North China University of Science and Technology,Tangshan 063200,China;National Key Laboratory for North China Crop Improvement and Regulation,Agriculture University of Hebei,Baoding 071001,China ^[4] State Key Laboratory of Systematic and Evolutionary Botany,Institute of Botany,Chinese Academy of Science,Beijing 100093,China ^[5] Fredericton Research and Development Centre,Agriculture and Agri-Food Canada,Fredericton,New Brunswick,E3B 4Z7,Canada ^[6] Plant Genome Mapping Laboratory,University of Athens,Athens,GA 30602,USA;Department of Plant Biology,University of Georgia,Athens,GA 30602,USA;Department of Crop and Soil Science,University of Georgia,Athens,GA 30602,USA;Department of Genetics,University of Georgia,Athens,GA 30602,USA ^[7]

关键词 Vascular plant Lycophytes Genome Polyploidy Evolution

栏目名称 Original Research

发布时间 2021-03-04

基金项目

We appreciate financial support from the Ministry of Science and Technology of the People's Republic of China the China National Science Founda-tion the Natural Science Foundation of Hebei Province and Tang-shan Key Laboratory Project to XW

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