| Literature DB >> 33157303 |
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.
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.Entities:
Keywords: Evolution; Genome; Lycophytes; Polyploidy; Vascular plant
Mesh：
Year: 2020 PMID： 33157303 PMCID： PMC7801247 DOI： 10.1016/j.gpb.2020.10.002
Source DB: PubMed Journal: Genomics Proteomics Bioinformatics ISSN： 1672-0229 Impact factor: 7.691