The origin and evolution of carpels and fruits from an evo-devo perspective


  作  者:Liu HY#, Li J#, Gong PC, He CY*


  刊物名称:Journal of Integrative Plant Biology


  卷: 期: 页码:DOI:10.1111/jipb.13351


  The flower is an evolutionary innovation in angiosperms that drives the evolution of biodiversity. The carpel is integral to a flower and develops into fruits after fertilization, while the perianth, consisting of the calyx and corolla, is decorative to facilitate pollination and protect the internal organs, including the carpels and stamens. Therefore, the nature of flower origin is carpel and stamen origin, which represents one of the greatest and fundamental unresolved issues in plant evolutionary biology. Here, we briefly summarize the main progress and key genes identified for understanding floral development, focusing on the origin and development of the carpels. Floral ABC models have played pioneering roles in elucidating flower development, but remain insufficient for resolving flower and carpel origin. The genetic basis for carpel origin and subsequent diversification leading to fruit diversity also remains elusive. Based on current research progress and technological advances, simplified floral models and integrative evolutionary-developmental (evo-devo) strategies are proposed for elucidating the genetics of carpel origin and fruit evolution. Stepwise birth of a few master regulatory genes and subsequent functional diversification might play a pivotal role in these evolutionary processes. Among the identified transcription factors, AGAMOUS (AG) and CRABS CLAW (CRC) may be the two core regulatory genes for carpel origin as they determine carpel organ identity, determinacy, and functionality. Therefore, a comparative identification of their protein–protein interactions and downstream target genes between flowering and non-flowering plants from an evo-devo perspective may be primary projects for elucidating carpel origin and development.




版权所有 © 系统与进化植物学国家重点实验室[中国科学院植物研究所]
ICP备16067583号-12 网站管理 技术支持:青云软件


  • 地址:北京市海淀区 香山南辛村20号
  • 邮编:100093
  • 电话:010-6283 6086
  • 传真:010-6283 6095
  • 电邮