Genome-Wide Identification and Expression Analysis of CesA Gene Family in Corymbia citriodora
文献类型： 外文期刊
作者： Wang, Chubiao 1 ; Huang, Anying 1 ; He, Wenliang 1 ; Ou, Yuduan 2 ; Lu, Wanhong 1 ; Lin, Yan 1 ; Wang, Peng 3 ; Luo, Jianzhong 1 ;
作者机构： 1.Res Inst Fast Growing Trees, Chinese Acad Forestry, Zhanjiang 524022, Peoples R China
2.Guangdong Ocean Univ, Coll Coastal Agr Sci, Zhanjiang 524088, Peoples R China
3.Chinese Acad Trop Agr Sci, Trop Crops Genet Resources Inst, Haikou 571100, Peoples R China
4.Minist Agr Key Lab Crop Gene Resources & Germplasm, Haikou 571100, Peoples R China
关键词： CesA; gene expression; Corymbia citriodora
期刊名称：FORESTS （ 影响因子：2.9； 五年影响因子：3.0 ）
ISSN：
年卷期： 2023 年 14 卷 3 期
页码：
收录情况： SCI
摘要： The CesA proteins are key players in cellulose synthesis. Eucalyptus is well-known for cellulose synthesis, although the mechanism of cellulose synthesis is largely unknown. In this study, 11 CcCesA genes were identified by comprehensive bioinformatics analysis in Corymbia citriodora, a eucalypt species. CcCesA genes were generally conserved in each subfamily. Among them, four genes lacked a transmembrane domain in the N-terminal. We showed that genes of CesA2, 4, 5, and 8 may regulate the synthesis of secondary cell walls (SCWs) through phylogenetic trees analysis. Two pairs of segmental duplication and one pair of tandem duplication were detected in CcCesAs. Analysis of Ka/Ks ratios revealed that the duplicated genes were under negative or purifying selection. Numerous cis-acting elements related to plant hormones and light reactions were identified in the promoters of CcCesAs. Expression analysis confirmed that genes of CesA2, 4, and 8 regulate the synthesis of SCWs, and CesA8, in particular, had the highest expression compared with other genes. The results will help us understand the complexity of the CcCesAs in different diameters at breast height and provide valuable information for future functional characterization of specific genes in C. citriodora.
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