1. Molecular characterization of Vitellogenin-like1 gene in Sogatella furcifera (Hemiptera: Delphacidae), and its function on reproduction.
- Author
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Xu, Changyu, Li, Fei, Hou, Maolin, and Liu, Yudi
- Subjects
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GENE expression , *NILAPARVATA lugens , *HEMIPTERA , *GENES , *PEST control - Abstract
In this study, a vitellogenin like1 gene (SfVg- like1) in Sogatella furcifera was identified. The open reading frame (ORF) encoded 1,321 amino acid sequence. Structure analysis reveals that the amino acid sequence of SfVg- like1 has 3 conserved LPD_N, DUF1943 and VWFD domains. Phylogenetic analyses showed that SfVg- like1 was clustered in the same branch with the Vg- like1 of Nilaparvata lugens (100% bootstrap value) compared with other Hemiptera insects Vg s associated with vitellogenesis. Temporo-spatial expression analyses showed that SfVg -like1 expressed during all stages, and in both genders. The relative expression levels of SfVg -like1 mRNA were higher in adults than in nymph developmental stages. The knockdown of SfVg- like1 gene resulted in the inhibition of the ovarian development in female adults, whereas the morphology of the testis in male adults was not been affected. The silence of SfVg- like1 could decrease the relative expression levels of target of rapamycin (SfTOR , GenBank MW193765) and vitellogenin (SfVg , GenBank MH271114) genes significantly in female adults. However, the knockdown of SfTOR or SfVg genes in female adults did not affect the transcript level of SfVg- like1. Therefore, it demonstrated that SfVg- like1 might locate on the upstream signaling pathways of SfTOR and SfVg. These results demonstrate that SfVg- like1 is essential for S. furcifera reproduction, and it could be the potential target for the control of this pest. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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