Genome-wide analysis reveals widespread roles for RcREM genes in floral organ development in Rosa chinensis
Genome-wide analysis reveals widespread roles for RcREM genes in floral organ development in Rosa chinensis
复制标题
全基因组分析揭示了 RcREM 基因在月季花器官发育中的广泛作用
DOI：
10.1016/j.ygeno.2021.09.017
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发表时间：
2021-09-29
期刊：
影响因子：
4.4
通讯作者：
Wang, Changquan
中科院分区：
文献类型：
--
作者：
Liu, Jinyi;Wu, Silin;Wang, Changquan
REM基因家族的成员主要在生殖分生组织和花器官中表达。然而，它们的进化及其在花发育中的功能仍然知之甚少。在此，我们对蔷薇科植物的REM基因家族进行了全基因组鉴定和进化分析。与其他物种相比，这个家族在月季(Rosa Chinensis)中得到了极大的扩展，主要是通过串联复制。表达分析表明，大多数RcREM基因在生殖器官中特异表达，其特异表达模式在月季植物中发生了显着变化，突变影响了花器官。蛋白质相互作用分析表明，RcREM14与RcAP1(ABCDE模型中A类基因的同源基因之一)相互作用，突显了RcREM基因在花器官识别中的作用。最后，共表达网络分析表明，RcREM基因与调控开花时间、花器官发育以及细胞增殖和扩张的关键基因比例很高。
Members of the REM (Reproductive Meristem) gene family are expressed primarily in reproductive meristems and floral organs. However, their evolution and their functional profiles in flower development remain poorly understood. Here, we performed genome-wide identification and evolutionary analysis of the REM gene family in Rosaceae. This family has been greatly expanded in rose (Rosa chinensis) compared to other species, primarily through tandem duplication. Expression analysis revealed that most RcREM genes are specifically expressed in reproductive organs and that their specific expression patterns are dramatically altered in rose plants with mutations affecting floral organs. Protein-protein interaction analysis indicated that RcREM14 interact with RcAP1 (one of the homology of A class genes in ABCDE model), highlighting the roles of RcREM genes in floral organ identity. Finally, co-expression network analysis indicated that RcREM genes are co-expressed with a high proportion of key genes that regulate flowering time, floral organ development, and cell proliferation and expansion in R. chinensis.