Jing Xiaotong, Zou Quan, Yang Hui
Yangtze Delta Region Institute (Quzhou), University of Electronic Science and Technology of China, Quzhou 324003, China.
Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China.
Plants (Basel). 2024 Oct 21;13(20):2940. doi: 10.3390/plants13202940.
Auxin is the first plant hormone found to play a dominant role in fruit growth, from fruit set to fruit ripening. Strawberry plants represent a suitable model for studying auxin's biosynthesis, sensing, and signaling machinery. / genes are a classical rapid auxin-responsive family. However, the / gene family in genus is poorly understood. In this study, a total of 287 / genes were identified in the eight strawberry genomes. Their physicochemical properties, domain structure, and cis-regulatory elements revealed the functional multiplicity of the strawberry /s. We used a phylogenetic analysis to classify these genes into 12 classes. In addition, based on synteny analysis, gene duplications, and calculation of the Ka/Ks ratio, we found that segmental duplications promote the evolution of /s in species, which is followed by purifying selection. Furthermore, the expression pattern and protein-protein interaction network of these genes in revealed various tissue-specific expressions and probable regulatory functions. Taken together, these results provide basic genomic information and a functional analysis of these genes, which will serve to expand our understanding of the direction in which the / gene family is evolving in species.
生长素是最早被发现的在果实生长（从坐果到果实成熟）过程中起主导作用的植物激素。草莓植株是研究生长素生物合成、感知和信号传导机制的合适模型。/基因是典型的快速生长素响应家族。然而，人们对属中的/基因家族了解甚少。在本研究中，在八个草莓基因组中共鉴定出287个/基因。它们的理化性质、结构域结构和顺式调控元件揭示了草莓/s的功能多样性。我们通过系统发育分析将这些基因分为12类。此外，基于共线性分析、基因重复以及Ka/Ks比值的计算，我们发现片段重复促进了物种中/s的进化，随后是纯化选择。此外，这些基因在中的表达模式和蛋白质-蛋白质相互作用网络揭示了各种组织特异性表达和可能的调控功能。综上所述，这些结果提供了这些基因的基本基因组信息和功能分析，这将有助于扩展我们对物种中/基因家族进化方向的理解。
