Expression Analyses of Vitellogenin and Target of Rapamycin of Sogatella furcifera (Hemiptera: Delphacidae), and Their Effects on Reproduction

文献类型： 外文期刊

第一作者： Yi, Jinyu

作者： Yi, Jinyu;Li, Fei;Xu, Changyu;Liu, Yudi;Hou, Maolin

作者机构：

关键词： Sogatella furcifera; vitellogenin; target of rapamycin; RNAi; reproduction

期刊名称：JOURNAL OF ECONOMIC ENTOMOLOGY （ 影响因子：2.447； 五年影响因子：2.483 ）

ISSN： 0022-0493

年卷期： 2021 年 114 卷 6 期

页码：

收录情况： SCI

摘要： Vitellogenin (Vg) and the target of rapamycin (TOR) are important genes involved in insect reproduction regulation. In this work, the full lengths of the Vg (SfVg) and TOR (SfTOR) genes of the white-backed planthopper Sogatella furcifera were cloned. The expression pattern in females showed that SfVg was highly expressed in fat bodies, and StTOR was highly expressed in Malpighian tubules. After silencing SfVg or SfTOR, female adults did not deposit eggs. Their ovarian development was delayed, and yolk protein deposition in the oo-cytes was reduced. However, wild-type females mated with SfTOR-silenced males could lay eggs and produce offsprings normally. The dissections of testes and accessory glands of males with SfTOR knockdown showed that their development was not affected. Therefore, the silencing of the StVg or SfTOR genes can effectively inhibit female reproduction, but SfTOR knockdown has no significant effect on male reproductive capacity. Furthermore, silencing StTOR can cause SfVg expression to decrease significantly. All of the above results revealed that SfVg and SfTOR are essential for white-backed planthopper reproduction and may provide a potential target for pest control.

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