当前位置: X-MOL 学术J. Insect Physiol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Hormonal modulation of reproduction in Polistes fuscatus social wasps: Dual functions in both ovary development and sexual receptivity.
Journal of Insect Physiology ( IF 2.2 ) Pub Date : 2019-11-06 , DOI: 10.1016/j.jinsphys.2019.103972
Alexander Walton 1 , James P Tumulty 2 , Amy L Toth 3 , Michael J Sheehan 2
Affiliation  

Hormones are often major regulators of complex behaviors, such as mating and reproduction. In insects, juvenile hormone (JH) is integral to many components of reproductive physiology and behavior, but its role in female sexual receptivity is not well understood. To investigate the influence of JH on receptivity, we utilized the social wasp Polistes fuscatus. In Polistes, mating behavior is temporally separated from other components of reproduction, which allows for examination of the physiology and behavior of mating, disentangled from fertilization and egg-laying. We reared virgin gynes (reproductive females) in the lab and divided them into four groups, in which gynes received multiple topical treatments of either 20 μg, 10 μg, 5 μg, or 0 μg of the JH analog methoprene. Gynes were then placed in petri dishes with 2 unrelated males and we recorded attempted and successful mating. Additionally, we measured gyne ovarian development and survival in each group. We found that methoprene increased both sexual receptivity and ovarian development, but was associated with a decrease in long-term survival. Receptivity increased linearly as methoprene treatment increased, but the effect of methoprene on ovarian development was independent of dose. These results demonstrate the importance of JH in sexual receptivity and mating behavior. We argue that the relatively understudied Polistes gyne has potential as a model for mating and reproduction, and for the internal and external regulation of this complex behavior.

中文翻译:

Polistes fuscatus社交性黄蜂生殖的激素调节:卵巢发育和性接受性的双重功能。

激素通常是交配和繁殖等复杂行为的主要调节者。在昆虫中,幼体激素(JH)是生殖生理和行为的许多组成部分所不可或缺的,但是其在女性性接受性中的作用尚不清楚。为了调查JH对接受能力的影响,我们利用了社会黄蜂Polistes fuscatus。在Polistes中,交配行为在时间上与生殖的其他组成部分分开,这使您可以检查交配的生理和行为,从受精和产卵中解脱出来。我们在实验室中饲养了原始生殖器(生殖雌性)并将其分为四组,其中,生殖器接受了20μg,10μg,5μg或0μgJH类似物甲基戊二烯的多次局部治疗。然后将Gynes与2个不相关的雄性放在陪替氏培养皿中,我们记录了尝试成功交配的情况。此外,我们测量了每组的妇科卵巢发育和存活率。我们发现,甲基异戊二烯增加了性接受能力和卵巢发育,但与长期存活率下降有关。接受度随着甲氧戊二烯治疗的增加而线性增加,但是甲氧戊二烯对卵巢发育的影响与剂量无关。这些结果证明了JH在性接受和交配行为中的重要性。我们认为,相对未被充分研究的Polistes gyne有潜力作为交配和繁殖以及这种复杂行为的内部和外部调节的模型。我们发现,甲基异戊二烯增加了性接受能力和卵巢发育,但与长期存活率下降有关。接受度随着甲氧戊二烯治疗的增加而线性增加,但是甲氧戊二烯对卵巢发育的影响与剂量无关。这些结果证明了JH在性接受和交配行为中的重要性。我们认为,相对未被充分研究的Polistes gyne有潜力作为交配和繁殖以及这种复杂行为的内部和外部调节的模型。我们发现,甲基异戊二烯增加了性接受能力和卵巢发育,但与长期存活率下降有关。接受度随着甲氧戊二烯治疗的增加而线性增加,但是甲氧戊二烯对卵巢发育的影响与剂量无关。这些结果证明了JH在性接受和交配行为中的重要性。我们认为,相对未被充分研究的Polistes gyne有潜力作为交配和繁殖以及这种复杂行为的内部和外部调节的模型。这些结果证明了JH在性接受和交配行为中的重要性。我们认为,相对未被充分研究的Polistes gyne有潜力作为交配和繁殖以及这种复杂行为的内部和外部调节的模型。这些结果证明了JH在性接受和交配行为中的重要性。我们认为,相对未被充分研究的Polistes gyne有潜力作为交配和繁殖以及这种复杂行为的内部和外部调节的模型。
更新日期:2019-11-01
down
wechat
bug