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在普通胡蜂（Vespula vulgaris）工蜂的生育力和生育信号中，保幼激素的作用。

Effects of juvenile hormone in fertility and fertility-signaling in workers of the common wasp Vespula vulgaris.

机构信息

Laboratory of Socioecology and Social Evolution, KU Leuven, Leuven, Belgium.

Departamento de Biologia, Universidade de São Paulo - USP/ Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Ribeirão Preto, São Paulo, Brazil.

出版信息

PLoS One. 2021 May 17;16(5):e0250720. doi: 10.1371/journal.pone.0250720. eCollection 2021.

DOI:10.1371/journal.pone.0250720
PMID:33999926
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8128253/
Abstract

In the highly eusocial wasp, Vespula vulgaris, queens produce honest signals to alert their subordinate workers of their fertility status, and therefore they are reproductively suppressed and help in the colony. The honesty of the queen signals is likely maintained due to hormonal regulation, which affects fertility and fertility cue expression. Here, we tested if hormonal pleiotropy could support the hypothesis that juvenile hormone controls fertility and fertility signaling in workers. In addition, we aimed to check oocyte size as a proxy of fertility. To do that, we treated V. vulgaris workers with synthetic versions of juvenile hormone (JH) analogue and a JH inhibitor, methoprene and precocene, respectively. We dissected the treated females to check ovary activation and analyzed their chemical profile. Our results showed that juvenile hormone has an influence on the abundance of fertility linked compounds produced by workers, and it also showed to increase oocyte size in workers. Our results corroborate the hypothesis that juvenile hormone controls fertility and fertility signaling in workers, whereby workers are unable to reproduce without alerting other colony members of their fertility. This provides supports the hypothesis that hormonal pleiotropy contributes to keeping the queen fertility signals honest.

摘要

在高度群居的胡蜂中，普通胡蜂的女王会发出诚实的信号，向其下属的工蜂表明自己的生育能力，从而使它们的生殖能力受到抑制，并为群体提供帮助。女王信号的诚实可能是由于激素调节维持的，这种调节会影响生育能力和生育信号的表达。在这里，我们测试了激素多效性是否可以支持这样一种假设，即保幼激素控制着工蜂的生育能力和生育信号。此外，我们旨在检查卵母细胞大小作为生育能力的替代指标。为此，我们分别用合成的保幼激素（JH）类似物和 JH 抑制剂保幼醚和早熟素处理普通胡蜂的工蜂。我们解剖处理后的雌性个体以检查卵巢的激活情况，并分析它们的化学特征。结果表明，保幼激素影响工蜂产生的与生育能力相关的化合物的丰度，同时也显示出增加工蜂卵母细胞的大小。我们的结果证实了保幼激素控制工蜂生育能力和生育信号的假设，即工蜂如果不向其他群体成员表明自己的生育能力，就无法繁殖。这支持了这样一种假设，即激素多效性有助于保持女王生育信号的诚实。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c563/8128253/96535700f731/pone.0250720.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c563/8128253/fe62212dea00/pone.0250720.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c563/8128253/106604810041/pone.0250720.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c563/8128253/96535700f731/pone.0250720.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c563/8128253/fe62212dea00/pone.0250720.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c563/8128253/106604810041/pone.0250720.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c563/8128253/96535700f731/pone.0250720.g003.jpg

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