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Cytochrome P450 monooxygenase genes in the wild silkworm, Bombyx mandarina

文献类型： 外文期刊

作者： Wan, Linrong 1 ; Zhou, Anlian 1 ; Xiao, Wenfu 1 ; Zou, Bangxing 1 ; Jiang, Yaming 1 ; Xiao, Jinshu 1 ; Deng, Cao 3 ; Zhan 1 ;

作者机构： 1.Sichuan Acad Agr Sci, Sericultural Res Inst, Nanchong, Sichuan, Peoples R China

2.Sichuan Agr Univ, Coll Agron, Chengdu, Sichuan, Peoples R China

3.Res & Dev Ctr, Chengdu, Sichuan, Peoples R China

4.DNA Stories Bioinformat Ctr, Dept Bioinformat, Chengdu, Sichuan, Peoples R China

关键词： Bombyx mandarina; Wild silkworm; Cytochrome P450; Gene family

期刊名称：PEERJ （ 影响因子：2.984； 五年影响因子：3.369 ）

ISSN： 2167-8359

年卷期： 2021 年 9 卷

页码：

收录情况： SCI

摘要： Wild (Bombyx mandarina) and domestic silkworms (B. mori) are good models for investigating insect domestication, as 5000 years of artificial breeding and selection have resulted in significant differences between B. mandarina and B. mori. In this study, we improved the genome assemblies to the chromosome level and updated the protein-coding gene annotations for B. mandarina. Based on this updated genome, we identified 68 cytochrome P450 genes in B. mandarina. The cytochrome P450 repository in B. mandarin is smaller than in B. mori. Certain currently unknown key genes, rather than gene number, are critical for insecticide resistance in B. mandarina, which shows greater resistance to insecticides than B. mori. Based on the physical maps of B. mandarina, we located 66 cytochrome P450s on 18 different chromosomes, and 27 of the cytochrome P450 genes were concentrated into seven dusters. KEGG enrichment analysis of the P450 genes revealed the involvement of cytochrome P450 genes in hormone biosynthesis. Analyses of the silk gland transcriptome identified candidate cytochrome P450 genes (CYP306A) involved in ecdysteroidogenesis and insecticide metabolism in B. mandarina.

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