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Octopamine signaling is involved in the female postmating state in Nilaparvata lugens Stål (Hemiptera: Delphacidae)
Archives of Insect Biochemistry and Physiology ( IF 1.5 ) Pub Date : 2021-06-23 , DOI: 10.1002/arch.21825 Sheraz Ahmad 1 , Yu Chen 1 , Jieyu Zhang 1 , David Stanley 2 , Qisheng Song 3 , Linquan Ge 1
Archives of Insect Biochemistry and Physiology ( IF 1.5 ) Pub Date : 2021-06-23 , DOI: 10.1002/arch.21825 Sheraz Ahmad 1 , Yu Chen 1 , Jieyu Zhang 1 , David Stanley 2 , Qisheng Song 3 , Linquan Ge 1
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Mating triggers physiological and behavioral changes in female insects. In many species, females experience postmating behavioral and physiological changes that define a post-mated state. These changes are comprised of several conditions, including long-term refractoriness to re-mating and increased production and laying of eggs. Here, we report that mating led to several changes in brown planthopper (BPH) females, including increased octopamine (OA), cAMP concentrations, and activities of several enzymes. Mating also led to changes in the expression of several genes acting in female physiology, including those in the cAMP/PKA signal transduction pathway. OA injections into virgin females led to similar changes. RNAi silencing of the gene encoding tyramine β-hydroxylase, involved in the final step in OA synthesis, led to decreased expression of these genes, and reduced the cAMP/PKA signaling. At the whole-organism level, the RNAi treatments led to reduced fecundity, body weights, and longevity. RNAi silencing of genes acting in OA signaling led to truncated ovarian development, egg maturation, and ovarian vitellogenin (Vg) uptake. The impact of these decreases is also registered at the population level, seen as decreased population growth. We infer that OA signaling modulates the postmating state in female BPH and possibly other hemipterans.
中文翻译：
章鱼胺信号参与 Nilaparvata lugens Stål（半翅目：Delphacidae）的雌性后交配状态
交配触发雌性昆虫的生理和行为变化。在许多物种中，雌性会经历交配后的行为和生理变化，这些变化定义了交配后的状态。这些变化由几个条件组成，包括长期难以重新交配以及增加产卵和产卵。在这里，我们报告交配导致褐飞虱 (BPH) 雌性的几种变化，包括增加的章鱼胺 (OA)、cAMP 浓度和几种酶的活性。交配还导致一些在雌性生理中起作用的基因表达发生变化，包括 cAMP/PKA 信号转导途径中的基因。向处女女性注射 OA 导致了类似的变化。RNAi 沉默编码酪胺 β-羟化酶的基因，参与 OA 合成的最后一步，导致这些基因的表达减少，并减少 cAMP/PKA 信号传导。在整个生物体水平上，RNAi 治疗导致繁殖力、体重和寿命降低。RNAi 沉默作用于 OA 信号的基因导致卵巢发育、卵子成熟和卵巢卵黄蛋白原 (Vg) 摄取被截断。这些下降的影响也体现在人口层面，被视为人口增长下降。我们推断 OA 信号调节雌性 BPH 和可能的其他半翅目动物的交配后状态。这些下降的影响也体现在人口层面，被视为人口增长下降。我们推断 OA 信号调节雌性 BPH 和可能的其他半翅目动物的交配后状态。这些下降的影响也体现在人口层面，被视为人口增长下降。我们推断 OA 信号调节雌性 BPH 和可能的其他半翅目动物的交配后状态。
更新日期：2021-07-18
中文翻译：
章鱼胺信号参与 Nilaparvata lugens Stål（半翅目：Delphacidae）的雌性后交配状态
交配触发雌性昆虫的生理和行为变化。在许多物种中，雌性会经历交配后的行为和生理变化，这些变化定义了交配后的状态。这些变化由几个条件组成，包括长期难以重新交配以及增加产卵和产卵。在这里，我们报告交配导致褐飞虱 (BPH) 雌性的几种变化，包括增加的章鱼胺 (OA)、cAMP 浓度和几种酶的活性。交配还导致一些在雌性生理中起作用的基因表达发生变化，包括 cAMP/PKA 信号转导途径中的基因。向处女女性注射 OA 导致了类似的变化。RNAi 沉默编码酪胺 β-羟化酶的基因，参与 OA 合成的最后一步，导致这些基因的表达减少，并减少 cAMP/PKA 信号传导。在整个生物体水平上，RNAi 治疗导致繁殖力、体重和寿命降低。RNAi 沉默作用于 OA 信号的基因导致卵巢发育、卵子成熟和卵巢卵黄蛋白原 (Vg) 摄取被截断。这些下降的影响也体现在人口层面，被视为人口增长下降。我们推断 OA 信号调节雌性 BPH 和可能的其他半翅目动物的交配后状态。这些下降的影响也体现在人口层面，被视为人口增长下降。我们推断 OA 信号调节雌性 BPH 和可能的其他半翅目动物的交配后状态。这些下降的影响也体现在人口层面，被视为人口增长下降。我们推断 OA 信号调节雌性 BPH 和可能的其他半翅目动物的交配后状态。
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