Excavation of Genes Responsive to Brassinosteroids by Transcriptome Sequencing in Adiantum flabellulatum Gametophytes
文献类型： 外文期刊
作者： Cai, Zeping 1 ; Xie, Zhenyu 1 ; Wang, Xiaochen 1 ; Zhang, Shuixian 1 ; Wu, Qian 2 ; Yu, Xudong 3 ; Guo, Yi 1 ; Gao, Shuyi 1 ; Zhang, Yunge 2 ; Xu, Shitao 4 ; Wang, Honggang 2 ; Luo, Jiajia 5 ;
作者机构： 1.Hainan Univ, Coll Forestry, Key Lab Genet & Germplasm Innovat Trop Special Fo, Minist Educ, Haikou 570228, Hainan, Peoples R China
2.Hainan Univ, Coll Trop Crops, Haikou 570228, Hainan, Peoples R China
3.Hainan Univ, Coll Forestry, Key Lab Germplasm Resources Biol Trop Special Orn, Haikou 570228, Hainan, Peoples R China
4.Hainan Univ, Coll Hort, Haikou 570228, Hainan, Peoples R China
5.Chinese Acad Trop Agr Sci, Trop Crops Genet Resources Inst, Haikou 571101, Hainan, Peoples R China
关键词： ferns; photosynthesis; brassinosteroids synthesis; negative feedback regulation
期刊名称：GENES （ 影响因子：4.141； 五年影响因子：4.474 ）
ISSN：
年卷期： 2022 年 13 卷 6 期
页码：
收录情况： SCI
摘要： Brassinosteroids (BRs) are a class of polyhydroxysteroid plant hormones; they play important roles in the development and stress resistance of plants. The research on BRs has mainly been carried out in angiosperms, but in ferns-research is still limited to the physiological level and is not in-depth. In this study, Adiantum flabellulatum gametophytes were used as materials and treated with 10(-6) M brassinolide (BL). The differentially expressed genes (DEGs) responsive to BRs were identified by transcriptome sequencing, GO, KEGG analysis, as well as a quantitative real-time polymerase chain reaction. From this, a total of 8394 DEGs were screened. We found that the expressions of photosynthetic genes were widely inhibited by high concentrations of BL in A. flabellulatum gametophytes. Moreover, we detected many BR synthase genes, except BR6ox2, which may be why castasterone (CS) rather than BL was detected in ferns. Additionally, we identified (for the first time) that the expressions of BR synthase genes (CYP90B1, CYP90C1, CYP90D1, CPD, and BR6ox1) were negatively regulated by BL in fern gametophytes, which indicated that ferns, including gametophytes, also needed the regulatory mechanism for maintaining BR homeostasis. Based on transcriptome sequencing, this study can provide a large number of gene expression data for BRs regulating the development of fern gametophytes.
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