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Elevation of vitellogenin expression in Sunn pest is associated with pre‐migration and migration phases of the life cycle
Physiological Entomology ( IF 1.6 ) Pub Date : 2021-01-11 , DOI: 10.1111/phen.12348 Asli Dageri 1, 2 , Nurper Guz 3 , Mehmet Oktay Gurkan 3
Physiological Entomology ( IF 1.6 ) Pub Date : 2021-01-11 , DOI: 10.1111/phen.12348 Asli Dageri 1, 2 , Nurper Guz 3 , Mehmet Oktay Gurkan 3
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Sunn pest, Eurygaster maura L. (Hemiptera: Scutelleridae), a species with an obligatory diapause, is a major destructive pest of cereal products in central Asia, Europe and North Africa. Adults feed voraciously, causing total destruction of wheat fields in just a couple of days. Insect vitellogenins (Vgs) play a major role in reproduction by supplying the resources needed for oocyte development. In this study, we identified and characterized three E. maura Vg genes (EmVgs: EmVg1, EmVg2 and EmVg3) in the cDNA library generated from the fat body of overwintering E. maura. We examined expression levels of EmVgs in the phases of the life cycle, different tissues and at different developmental stages. mRNA levels in the female adults started to increase in the pre‐migration phase and reached peak level in the adults that freshly migrated to lowlands. This pattern suggests that the elevation of EmVg expression is associated with pre‐migration and migration phases of the insect's life cycle. EmVgs were primarily expressed in the fat body, which could be a possible EmVg expression site. EmVgs were expressed throughout developmental stages, suggesting that they might be prominent for nymphal development of E. maura.
中文翻译：
Sun虫中卵黄蛋白原表达的升高与生命周期的迁移前阶段和迁移阶段有关
n性害虫Eurygaster maura L.（半翅目：Scutelleridae）是具有强制滞育作用的物种，是中亚，欧洲和北非谷物产品的主要破坏性害虫。成年动物贪食，仅仅几天就造成了麦田的完全破坏。虫卵黄蛋白原（Vgs）通过提供卵母细胞发育所需的资源在繁殖中起主要作用。在这项研究中，我们在越冬大肠杆菌的脂肪体产生的cDNA文库中鉴定并鉴定了三个大肠杆菌E. maura Vg基因（EmVg：EmVg1，EmVg2和EmVg3）。我们检查了EmVg的表达水平在生命周期的各个阶段，不同的组织和不同的发育阶段。雌性成虫的mRNA水平在迁移前阶段开始增加，并在刚迁移到低地的成虫中达到峰值。这种模式表明，EmVg表达的升高与昆虫生命周期的预迁移和迁移阶段有关。EmVg主要在脂肪体内表达，这可能是可能的EmVg表达位点。EMVG小号在整个发育阶段表达，表明它们可能是若虫发展中的突出E.莫拉。
更新日期：2021-02-09
中文翻译：
Sun虫中卵黄蛋白原表达的升高与生命周期的迁移前阶段和迁移阶段有关
n性害虫Eurygaster maura L.（半翅目：Scutelleridae）是具有强制滞育作用的物种，是中亚，欧洲和北非谷物产品的主要破坏性害虫。成年动物贪食，仅仅几天就造成了麦田的完全破坏。虫卵黄蛋白原（Vgs）通过提供卵母细胞发育所需的资源在繁殖中起主要作用。在这项研究中，我们在越冬大肠杆菌的脂肪体产生的cDNA文库中鉴定并鉴定了三个大肠杆菌E. maura Vg基因（EmVg：EmVg1，EmVg2和EmVg3）。我们检查了EmVg的表达水平在生命周期的各个阶段，不同的组织和不同的发育阶段。雌性成虫的mRNA水平在迁移前阶段开始增加，并在刚迁移到低地的成虫中达到峰值。这种模式表明，EmVg表达的升高与昆虫生命周期的预迁移和迁移阶段有关。EmVg主要在脂肪体内表达，这可能是可能的EmVg表达位点。EMVG小号在整个发育阶段表达，表明它们可能是若虫发展中的突出E.莫拉。
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