BioDiscovery Institute, Department of Biological Sciences, University of North Texas, Denton, TX 76203-5017, USA.
BioDiscovery Institute, Department of Biological Sciences, University of North Texas, Denton, TX 76203-5017, USA.
Curr Opin Plant Biol. 2021 Feb;59:101968. doi: 10.1016/j.pbi.2020.10.001. Epub 2021 Jan 5.
By specifying patterns of determinate and indeterminate growth, FLOWERING LOCUS T/SINGLE FLOWER TRUSS (SFT) and TERMINAL FLOWER 1/SELF-PRUNING (SP) regulate plant architecture. Though well characterized in Arabidopsis, the impacts of these genes on the architectures of diverse crops cultivated in different environments, and their potential to enhance crop productivity and management, are less well addressed. Cotton (Gossypium spp.) is naturally a short-day photoperiodic perennial that is now grown primarily as a day-neutral, annual row crop. Different environments and cultivation practices favor specific growth habits to optimize yield, and in cotton, especially in regions that rely heavily on mechanized harvest, the trend has been to more determinate varieties. Identifying and functionally characterizing SFT and SP homologs in cotton uncovered new aspects of how ratios of indeterminate and determinate growth are balanced, and unraveling their genetic networks emphasized how broadly these gene products affect cotton growth habits.
通过确定决定和不确定生长的模式，开花时间/单朵花蔓（SFT）和顶端花 1/自剪（SP）调控植物的结构。尽管在拟南芥中得到了很好的描述，但这些基因对不同环境中种植的各种作物的结构的影响，以及它们在提高作物生产力和管理方面的潜力，还没有得到很好的解决。棉花（Gossypium spp.）是一种天然的短日照周期性多年生植物，现在主要作为一种非短日照、一年生的行播作物种植。不同的环境和栽培实践有利于特定的生长习性，以优化产量，在棉花中，尤其是在严重依赖机械化收获的地区，趋势是向更确定的品种发展。在棉花中鉴定和功能表征 SFT 和 SP 同源物揭示了不定芽和定芽生长平衡的新方面，阐明它们的遗传网络强调了这些基因产物如何广泛地影响棉花的生长习性。
