Ancestral gene duplications in mosses characterized by integrated phylogenomic analyses

  • Bei Gao
    State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Urumqi 830011 China
  • Mo‐Xian Chen
    Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen 518055 China
  • Xiao‐Shuang Li
    State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Urumqi 830011 China
  • Yu‐Qing Liang
    State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Urumqi 830011 China
  • Dao‐Yuan Zhang
    State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Urumqi 830011 China
  • Andrew J. Wood
    Department of Plant Biology Southern Illinois University‐Carbondale Carbondale IL 62901‐6509 USA
  • Melvin J. Oliver
    Division of Plant Sciences, Interdisciplinary Plant Group University of Missouri Columbia MO 65211 USA
  • Jian‐Hua Zhang
    State Key Laboratory of Agrobiotechnology The Chinese University of Hong Kong Hong Kong China

抄録

<jats:title>Abstract</jats:title><jats:p>Mosses (Bryophyta) are a key group occupying an important phylogenetic position in land plant (embryophyte) evolution. The class Bryopsida represents the most diversified lineage, containing more than 95% of modern mosses, whereas other classes are species‐poor. Two branches with large numbers of gene duplications were elucidated by phylogenomic analyses, one in the ancestry of all mosses and another before the separation of the Bryopsida, Polytrichopsida, and Tetraphidopsida. The analysis of the phylogenetic progression of duplicated paralogs retained on genomic syntenic regions in the <jats:italic>Physcomitrella patens</jats:italic> genome confirmed that the whole‐genome duplication events WGD1 and WGD2 were re‐recognized as the ψ event and the Funarioideae duplication event, respectively. The ψ polyploidy event was tightly associated with the early diversification of Bryopsida, in the ancestor of Bryidae, Dicranidae, Timmiidae, and Funariidae. Together, four branches with large numbers of gene duplications were unveiled in the evolutionary past of <jats:italic>P. patens</jats:italic>. Gene retention patterns following the four large‐scale duplications in different moss lineages were analyzed and discussed. Recurrent significant retention of stress‐related genes may have contributed to their adaption to distinct ecological environments and the evolutionary success of this early‐diverging land plant lineage.</jats:p>

収録刊行物

被引用文献 (1)*注記

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ