Diversity, domain duplication, birth-and-death and adaptive evolution of fatty acyl-CoA reductase genes in Hemiptera
文献类型： 外文期刊
作者： Di, Zhongjuan 1 ; Tian, Jiahui 1 ; Ali, Muhammad Yasir 4 ; Zhang, Biyun 1 ; Yang, Shiyong 3 ; Fu, Yuejun 2 ; Li, Fengqi 1 ; Luo, Chen 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Plant & Environm Protect, Beijing Key Lab Environm Friendly Management Fruit, Beijing 100097, Peoples R China
2.Shanxi Univ, Inst Biotechnol, Key Lab Chem Biol & Mol Engn, Minist Educ, Taiyuan, Peoples R China
3.Anhui Normal Univ, Sch Ecol & Environm, Wuhu, Peoples R China
4.Chinese Acad Agr Sci, Inst Plant Protect, MARA CABI Joint Lab Biosafety, Beijing, Peoples R China
关键词： adaptive evolution; fatty acyl-CoA reductases; Hemiptera; molecular evolution; phylogeny; true bugs
期刊名称：PHYSIOLOGICAL ENTOMOLOGY （ 影响因子：1.5； 五年影响因子：2.0 ）
ISSN： 0307-6962
年卷期： 2023 年
页码：
收录情况： SCI
摘要： Fatty acyl-CoA reductases (FARs) play an important role in the synthesis of fatty alcohols in various organisms. Based on the important function of FAR genes, they can be used as a potential molecular target for controlling agricultural pests. Although the FAR genes have been studied in a number of insects, the gain, loss, and molecular evolution of FAR genes between different Hemipteran species still require comprehensive and systematic study. This study systematically identified and analysed 352 FAR genes from 12 Hemipteran species, including six typical true bug species, Cimex lectularius, Apolygus lucorum, Halyomorpha halys, Oncopeltus fasciatus, Rhodnius prolixus and Gerris buenoi. The number of FAR genes per species ranged from 17 to 43, and a phylogenetic analysis showed that the identified FAR genes of Hemiptera can be classified into 11 clades. The gain and loss of FAR genes have occurred in some Hemipteran species. These FAR genes conform to the birth-and-death model in the evolutionary process. Through selection pressure analysis, we determined that G. buenoi in clade 11 evolved under the pressure of positive selection, with the evolutionary sites of A at position 214 and T at position 451, thus clarifying the differences in amino acids among species and providing a better understanding of the molecular evolutionary mechanism of Hemipteran FAR. In addition, structural analysis of the FAR genes revealed duplication of the two conservative domains, the Rossmann-fold domain and the sterile domain, of the FAR in four species, namely Bemisia tabaci, Diaphorina citri, R. prolixus and Trialeurodes vaporariorum. This study lays a foundation for further studies on the molecular functions of Hemiptera FAR, and provides a possible new target for the control of Hemiptera, especially the stink bugs.
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