Molecular and functional characterization of a /3-tubulin gene in Plutella xylostella

文献类型： 外文期刊

第一作者： Liao, Jianying

作者： Liao, Jianying;Chen, Jing;Liu, Dan;Li, Jianwen;Sun, Cuiying;Asad, Muhammad;Yang, Guang;Liao, Jianying;Chen, Jing;Liu, Dan;Li, Jianwen;Sun, Cuiying;Asad, Muhammad;Yang, Guang;Liao, Jianying;Chen, Jing;Liu, Dan;Li, Jianwen;Sun, Cuiying;Asad, Muhammad;Yang, Guang;Liao, Jianying;Chen, Jing;Li, Jianwen;Sun, Cuiying;Asad, Muhammad;Yang, Guang;Liao, Jianying;Chen, Jing;Li, Jianwen;Sun, Cuiying;Asad, Muhammad;Yang, Guang;Chen, Jinzhi;Wei, Hui

作者机构：

关键词： Diamondback moth; CRISPR/Cas9; Px/3tubulin-1; Reproductive fitness

期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.5； 五年影响因子：8.7 ）

ISSN： 0141-8130

年卷期： 2025 年 300 卷

页码：

收录情况： SCI

摘要： The /3-tubulin gene is essential for reproductive development, especially for male fertility, in different insects including Bombyx mori and Drosophila melanogaster. Targeting reproductive genes such as /3-tubulin offers a promising approach to pest control that is more sustainable than chemical pesticides. However, there is limited research on the functional role of /3-tubulin in Plutella xylostella, a highly damaging pest of vegetable crops. In the present study, we first identified and cloned the /3-tubulin gene in P. xylostella (Px/3tubulin-1). Px beta tubulin-1 protein contains two conserved domains of Tubulin and Tubulin-C, and /3-tubulin were conserved in the Lepidoptera. Spatiotemporal expression analysis revealed that Px/3tubulin-1 was highly expressed in male pupae, adult males, and testes, suggesting its testis-specific function. Using CRISPR/Cas9 technology, we generated two homozygous Px/3tubulin-1 mutant strains of P. xylostella. Mutant strains exhibited significantly lower egg production and hatching rates compared with the wild type. Dissection and measurement of reproductive organs revealed that the testes and bursa copulatrix in mutant strains were significantly reduced in size compared with the wild type. In conclusion, Px/3tubulin-1 is vital for male fertility as it influences the development of reproductive organs and can be a potential target for the control of P. xylostella.

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