Ancient duplications and grass-specific transposition influenced the evolution of LEAFY transcription factor genes
Publication in refereed journal

香港中文大學研究人員
作者已離職


引用次數
替代計量分析
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其它資訊
摘要The LFY transcription factor gene family are important in the promotion of cell proliferation and floral development. Understanding their evolution offers an insight into floral development in plant evolution. Though a promiscuous transition intermediate and a gene duplication event within the LFY family had been identified previously, the early evolutionary path of this family remained elusive. Here, we reconstructed the LFY family phylogeny using maximum-likelihood and Bayesian inference methods incorporating LFY genes from all major lineages of streptophytes. The well-resolved phylogeny unveiled a high-confidence duplication event before the functional divergence of types I and II LFY genes in the ancestry of liverworts, mosses and tracheophytes, supporting sub-functionalization of an ancestral promiscuous gene. The identification of promiscuous genes in Osmunda suggested promiscuous LFY genes experienced an ancient transient duplication. Genomic synteny comparisons demonstrated a deep genomic positional conservation of LFY genes and an ancestral lineage-specific transposition activity in grasses.
出版社接受日期17.05.2019
著者Bei Gao, Moxian Chen, Xiaoshuang Li, Jianhua Zhang
期刊名稱Communications Biology
出版年份2019
月份6
日期21
卷號2
文章號碼237
國際標準期刊號2399-3642
語言英式英語

上次更新時間 2020-21-09 於 01:52