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<p>After 500 million years of evolution, extant land plants compose the following two sister groups: the bryophytes and the vascular plants. Despite their small size and simple structure, bryophytes thrive in a wide variety of habitats, including extreme conditions. However, the genetic basis for their ecological adaptability and long-term survival is not well understood. A comprehensive super-pangenome analysis, incorporating 123 newly sequenced bryophyte genomes, reveals that bryophytes possess a substantially greater diversity of gene families than vascular plants. This includes a higher number of unique and lineage-specific gene families, originating from extensive new gene formation and continuous horizontal transfer of microbial genes over their long evolutionary history. The evolution of bryophytes’ rich and diverse genetic toolkit, which includes new physiological innovations like unique immune receptors, likely facilitated their spread across different biomes. These newly sequenced bryophyte genomes offer a valuable resource for exploring alternative evolutionary strategies for terrestrial success.</p>

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Bryophytes hold a larger gene family space than vascular plants

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年9月22日

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  • Shanshan Dong,
  • Sibo Wang,
  • Linzhou Li,
  • Jin Yu,
  • Yongxia Zhang,
  • Jia-Yu Xue,
  • Hengchi Chen,
  • Jianchao Ma,
  • Yuying Zeng,
  • Yuqing Cai,
  • Wei Huang,
  • Xuping Zhou,
  • Jiayi Wu,
  • Jianyou Li,
  • Yifeng Yao,
  • Ruoyang Hu,
  • Tao Zhao,
  • Juan Carlos Villarreal A,
  • Leon Dirick,
  • Li Liu,
  • Michael Ignatov,
  • Minghui Jin,
  • Jue Ruan,
  • Yikun He,
  • Haifeng Wang,
  • Bo Xu,
  • Ricardo Rozzi,
  • Jill Wegrzyn,
  • Dennis William Stevenson,
  • Karen S. Renzaglia,
  • Hongfeng Chen,
  • Li Zhang,
  • Shouzhou Zhang,
  • Roy Mackenzie,
  • Javier E. Moreno,
  • Michael Melkonian,
  • Tong Wei,
  • Ying Gu,
  • Xun Xu,
  • Stefan A. Rensing,
  • Jinling Huang,
  • Manyuan Long,
  • Bernard Goffinet,
  • John L. Bowman,
  • Yves Van de Peer,
  • Huan Liu,
  • Yang Liu

摘要

After 500 million years of evolution, extant land plants compose the following two sister groups: the bryophytes and the vascular plants. Despite their small size and simple structure, bryophytes thrive in a wide variety of habitats, including extreme conditions. However, the genetic basis for their ecological adaptability and long-term survival is not well understood. A comprehensive super-pangenome analysis, incorporating 123 newly sequenced bryophyte genomes, reveals that bryophytes possess a substantially greater diversity of gene families than vascular plants. This includes a higher number of unique and lineage-specific gene families, originating from extensive new gene formation and continuous horizontal transfer of microbial genes over their long evolutionary history. The evolution of bryophytes’ rich and diverse genetic toolkit, which includes new physiological innovations like unique immune receptors, likely facilitated their spread across different biomes. These newly sequenced bryophyte genomes offer a valuable resource for exploring alternative evolutionary strategies for terrestrial success.