Paleo-polyploidization in Lycophytes

Jinpeng Wang; Jigao Yu; Pengchuan Sun; Chao Li; Xiaoming Song; Tianyu Lei; Yuxian Li; Jiaqing Yuan; Sangrong Sun; Hongling Ding; Xueqian Duan; Shaoqi Shen; Yanshuang Shen; Jing Li; Fanbo Meng; Yangqin Xie; Jianyu Wang; Yue Hou; Jin Zhang; Xianchun Zhang; Xiu-Qing Li; Andrew H Paterson; Xiyin Wang

doi:10.1016/j.gpb.2020.10.002

Paleo-polyploidization in Lycophytes

Genomics Proteomics Bioinformatics. 2020 Jun;18(3):333-340. doi: 10.1016/j.gpb.2020.10.002. Epub 2020 Nov 4.

Authors

Jinpeng Wang¹, Jigao Yu², Pengchuan Sun³, Chao Li³, Xiaoming Song⁴, Tianyu Lei³, Yuxian Li³, Jiaqing Yuan³, Sangrong Sun³, Hongling Ding³, Xueqian Duan³, Shaoqi Shen³, Yanshuang Shen³, Jing Li³, Fanbo Meng³, Yangqin Xie³, Jianyu Wang³, Yue Hou³, Jin Zhang³, Xianchun Zhang⁵, Xiu-Qing Li⁶, Andrew H Paterson⁷, Xiyin Wang⁸

Affiliations

¹ 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.
² 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.
³ Center for Computational Biology and Genomics, and School of Life Sciences, North China University of Science and Technology, Tangshan 063200, China.
⁴ 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.
⁵ State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Science, Beijing 100093, China.
⁶ Fredericton Research and Development Centre, Agriculture and Agri-Food Canada, Fredericton, New Brunswick, E3B 4Z7, Canada.
⁷ 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.
⁸ 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. Electronic address: wangxiyin@vip.sina.com.

Abstract

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 Selaginella 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.

Keywords: Evolution; Genome; Lycophytes; Polyploidy; Vascular plant.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Evolution, Molecular*
Genome, Plant*
Genomics
Phylogeny
Polyploidy*
Selaginellaceae / genetics*