Scholarlink

<p>In flowering plants, inferior ovaries are key morphological innovations that evolved multiple times from superior ovaries to protect female parts of the flower. However, the developmental mechanisms underlying inferior ovary formation remain largely unknown. Comparative spatial transcriptome mapping and cell lineage reconstructions in developing floral buds of cucumber and tomato, which have inferior and superior ovaries, respectively, revealed that inferior ovaries develop from accelerated receptacle growth resulting from the continuous activity of meristematic stems cells at the base of the cucumber floral organs. Genetic knockout of a receptacle-specific KNOX1 transcription factor in cucumber caused arrest in receptacle growth and yielded bisexual flowers with superior ovaries similar to those of tomato. Here we provide developmental and mechanistic insights into inferior ovary formation and sex determination in cucurbits.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Developmental innovation of inferior ovaries and flower sex orchestrated by KNOX1 in cucurbits

  • 期刊论文

  • 发表日期：

    2025年4月1日

查看全文
  • Zhaonian Dong,
  • Xiaolin Liu,
  • Xing Guo,
  • Xun Liu,
  • Bowen Wang,
  • Wenwen Shao,
  • Caihuan Tian,
  • Yingying Zheng,
  • Qiong Yu,
  • Liyuan Zhong,
  • Jinjing Sun,
  • Shengkang Li,
  • Tongxu Xin,
  • Bohan Zhang,
  • Tao Yang,
  • Haorong Lu,
  • Jocelyn K. C. Rose,
  • William J. Lucas,
  • Xun Xu,
  • Sanwen Huang,
  • Huan Liu,
  • Xueyong Yang

摘要

In flowering plants, inferior ovaries are key morphological innovations that evolved multiple times from superior ovaries to protect female parts of the flower. However, the developmental mechanisms underlying inferior ovary formation remain largely unknown. Comparative spatial transcriptome mapping and cell lineage reconstructions in developing floral buds of cucumber and tomato, which have inferior and superior ovaries, respectively, revealed that inferior ovaries develop from accelerated receptacle growth resulting from the continuous activity of meristematic stems cells at the base of the cucumber floral organs. Genetic knockout of a receptacle-specific KNOX1 transcription factor in cucumber caused arrest in receptacle growth and yielded bisexual flowers with superior ovaries similar to those of tomato. Here we provide developmental and mechanistic insights into inferior ovary formation and sex determination in cucurbits.