文献类型: 外文期刊
作者: Yang Fang;Xueping Tian;Yanling Jin;Anping Du;Yanqiang Ding;Zhihua Liao;Kaize He;Yonggui Zhao;Ling Guo;Yao Xiao;Yaliang Xu;Shuang Chen;Yuqing Che;Li Tan;Songhu Wang;Jiatang Li;Zhuolin Yi;Lanchai Chen;Leyi Zhao;Fangyuan Zhang;Guoyou Li;Jinmeng Li;Qinli Xiong;Yongmei Zhang;Qing Zhang;Xuan Hieu Cao;Hai Zhao
作者机构:
关键词: Aquatic;Duckweed;Evolution;Genome;Terrestrial
期刊名称: Genomics, Proteomics and Bioinformatics
ISSN: 1672-0229
年卷期: 2025 年 23 卷 4 期
页码:
收录情况: SCIE(2025版) ; ; CSCD(2025-2026年度) ; ; 科技核心(2024版)
摘要: Terrestrialization is an important evolutionary process that plants experienced. However, little is known about how land plants acquired aquatic growth behaviors. Here, we integrate multiproxy evidence to elucidate the evolution of the aquatic plant duckweed. Three genera of duckweeds show chronologically gradual degeneration in root structure and stomatal function and a decrease in lignocellulose content, accompanied by the contraction of relevant gene families and/or a decline in their transcription levels. The number of genes in main phytohormone pathways is also gradually decreased. The coordinated action of genes involved in auxin signaling and rhizoid development causes a gradual decrease in adventitious roots. Additionally, the significant expansion of the flavonoid pathway is related to the adaptation of duckweeds to floating growth. This study reconstructs the evolutionary history of duckweeds, tracing its journey from land back to water — a reverse trajectory of early land plants.
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