The ancient wave of polyploidization events in flowering plants and their facilitated adaptation to environmental stress

DOI Web Site Web Site 被引用文献1件
  • Liangsheng Zhang
    Genomics and Genetic Engineering Laboratory of Ornamental Plants, College of Agriculture and Biotechnology Zhejiang University Hangzhou China
  • Shengdan Wu
    State Key Laboratory of Grassland Agro‐Ecosystem Institute of Innovation Ecology, Lanzhou University Lanzhou China
  • Xiaojun Chang
    College of Horticulture Fujian Agriculture and Forestry University Fuzhou China
  • Xiuyun Wang
    Genomics and Genetic Engineering Laboratory of Ornamental Plants, College of Agriculture and Biotechnology Zhejiang University Hangzhou China
  • Yunpeng Zhao
    Laboratory of Systematic & Evolutionary Botany and Biodiversity, College of Life Sciences Zhejiang University Hangzhou China
  • Yiping Xia
    Genomics and Genetic Engineering Laboratory of Ornamental Plants, College of Agriculture and Biotechnology Zhejiang University Hangzhou China
  • Robert N. Trigiano
    Department of Entomology and Plant Pathology University of Tennessee Knoxville Tennessee USA
  • Yuannian Jiao
    State Key Laboratory of Systematic and Evolutionary Botany Institute of Botany, Chinese Academy of Sciences Beijing China
  • Fei Chen
    College of Horticulture Nanjing Agricultural University Nanjing China

書誌事項

公開日
2020-10-13
権利情報
  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1111/pce.13898
公開者
Wiley

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説明

<jats:title>Abstract</jats:title><jats:p>Flowering plants, or angiosperms, consist of more than 300,000 species, far more than any other land plant lineages. The accumulated evidence indicates that multiple ancient polyploidy events occurred around 100 to 120 million years ago during the Cretaceous and drove the early diversification of four major clades of angiosperms: <jats:italic>gamma</jats:italic> whole‐genome triplication in the common ancestor of core eudicots, <jats:italic>tau</jats:italic> whole‐genome duplication during the early diversification of monocots, <jats:italic>lambda</jats:italic> whole‐genome duplication during the early diversification of magnoliids, and <jats:italic>pi</jats:italic> whole‐genome duplication in the Nymphaeales lineage. These four polyploidy events have played essential roles in the adaptive evolution and diversification of major clades of flowering plants. Here, we specifically review the current understanding of this wave of ancient whole‐genome duplications and their evolutionary significance. Notably, although these ancient whole‐genome duplications occurred independently, they have contributed to the expansion of many stress‐related genes (e.g., heat shock transcription factors and Arabidopsis response regulators)，and these genes could have been selected for by global environmental changes in the Cretaceous. Therefore, this ancient wave of paleopolyploidy events could have significantly contributed to the adaptation of angiosperms to environmental changes, and potentially promoted the wide diversification of flowering plants.</jats:p>

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