文献类型： 外文期刊

作者： Wang, Tiekuang ¹ ; Liu, Xufei ² ; Luo, Zongxiu ² ; Cai, Xiaoming ² ; Li, Zhaoqun ² ; Bian, Lei ² ; Xiu, Chunli ² ; Chen, Zongmao ² ; Li, Qiurong ¹ ; Fu, Nanxia ² ;

作者机构： 1.Qinghai Univ, Qinghai Acad Agr & Forestry Sci, Xining 810016, Peoples R China

2.Chinese Acad Agr Sci, Tea Res Inst, Hangzhou 310008, Peoples R China

3.Minist Agr & Rural Affairs, Key Lab Biol Genet & Breeding Special Econ Anim &, Hangzhou 310008, Peoples R China

关键词： tea black tussock moth; Type-II sex pheromone; biosynthesis; cytochrome P450s; RNAseq; phylogenetic analysis

期刊名称：INSECTS （ 影响因子：3.0； 五年影响因子：3.1 ）

ISSN：

年卷期： 2024 年 15 卷 2 期

页码：

收录情况： SCI

摘要： The tea black tussock moth (Dasychira baibarana), a devastating pest in Chinese tea plantations, uses a ternary Type-II pheromone blend containing (3Z,6Z)-cis-9,10-epoxyhenicosa-3,6-diene (Z3,Z6,epo9-21:H), (3Z,6Z,11E)-cis-9,10-epoxyhenicosa-3,6,11-triene (Z3,Z6,epo9,E11-21:H), and (3Z,6Z)-henicosa-3,6-dien-11-one (Z3,Z6-21:11-one) for mate communication. To elucidate the P450 candidates associated with the biosynthesis of these sex pheromone components, we sequenced the female D. baibarana pheromone gland and the abdomen excluding the pheromone gland. A total of 75 DbP450s were identified. Function annotation suggested six CYPs were orthologous genes that are linked to molting hormone metabolism, and eight antennae specifically and significantly up-regulated CYPs may play roles in odorant processing. Based on a combination of comparative RNAseq, phylogenetic, and tissue expression pattern analysis, one CYP4G with abdomen specifically predominant expression pattern was likely to be the P450 decarbonylase, while the pheromone-gland specifically and most abundant CYP341B65 was the most promising epoxidase candidate for the D. baibarana sex pheromone biosynthesis. Collectively, our research laid a valuable basis not only for further functional elucidation of the candidate P450 decarbonylase and epoxidase for the sex pheromone biosynthesis but also for understanding the physiological functions and functional diversity of the CYP gene superfamily in the D. baibarana.