Osnato Michela, Cota Ignacio, Nebhnani Poonam, Cereijo Unai, Pelaz Soraya
Centre for Research in Agricultural Genomics, CSIC-IRTA-UAB-UB, Barcelona, Spain.
Institute of Environmental Science and Technology of the Universitat Autònoma de Barcelona, Barcelona, Spain.
Front Plant Sci. 2022 Feb 9;12:805635. doi: 10.3389/fpls.2021.805635. eCollection 2021.
Fluctuations in environmental conditions greatly influence life on earth. Plants, as sessile organisms, have developed molecular mechanisms to adapt their development to changes in daylength, or photoperiod. One of the first plant features that comes to mind as affected by the duration of the day is flowering time; we all bring up a clear image of spring blossom. However, for many plants flowering happens at other times of the year, and many other developmental aspects are also affected by changes in daylength, which range from hypocotyl elongation in to tuberization in potato or autumn growth cessation in trees. Strikingly, many of the processes affected by photoperiod employ similar gene networks to respond to changes in the length of light/dark cycles. In this review, we have focused on developmental processes affected by photoperiod that share similar genes and gene regulatory networks.
环境条件的波动极大地影响着地球上的生命。植物作为固着生物，已经进化出分子机制，使其发育能够适应日照长度或光周期的变化。受日照时长影响的植物特征中，首先浮现在脑海中的是开花时间；我们都能清晰地联想到春天的花朵。然而，对许多植物来说，开花发生在一年中的其他时间，而且许多其他发育方面也受到日照长度变化的影响，这些方面包括从下胚轴伸长到马铃薯块茎形成，或树木秋季生长停止。引人注目的是，许多受光周期影响的过程利用相似的基因网络来响应光/暗周期长度的变化。在这篇综述中，我们重点关注了受光周期影响且共享相似基因和基因调控网络的发育过程。
