Córdova-García Guadalupe, Sirot Laura, Abraham Solana, Díaz-Fleischer Francisco, Flores-Estevez Norma, López-Ortega Maurilio, Pérez-Staples Diana
INBIOTECA, Universidad Veracruzana, Xalapa, México.
Department of Biology, College of Wooster, Wooster, OH, United States.
Front Physiol. 2021 Sep 9;12:714247. doi: 10.3389/fphys.2021.714247. eCollection 2021.
Copulation and/or ejaculate components can alter female physiological state and female post-mating behavior. The objective of the present study was to determine if copulation and male reproductive accessory gland products (MAGs) modify the behavior of female (Loew) and (Macquart; Diptera: Tephritidae) in response to two stimuli: male-emitted pheromone and oviposition host volatiles. Olfactometry studies revealed that mated females of both and have a stronger response for host volatiles compared to unmated females, which have a stronger response for male pheromone. We also examined olfactory responses of females mated to testectomized males who could transfer MAGs but not sperm. In both species, MAGs alone did not cause the change in the olfactory response observed after copulation, unlike what has been found in (Wiedemann). Females mated to testectomized males responded equally to the male sex pheromone or to host volatiles, thus suggesting that the whole ejaculate is needed to elicit the complete behavioral switch in olfactory response. The function of MAGs is still unknown in these two pests of economic importance. The response for host volatiles by mated females has implications for the development of baits and traps that should preferably attract and target this population.
交配和/或射精成分可改变雌性的生理状态及交配后的行为。本研究的目的是确定交配和雄性生殖附腺产物（MAGs）是否会改变地中海实蝇（Loew）和墨西哥按实蝇（Macquart；双翅目：实蝇科）雌蝇对两种刺激的行为反应，这两种刺激分别是雄性释放的信息素和产卵寄主挥发物。嗅觉测定研究表明，与未交配的雌蝇相比，地中海实蝇和墨西哥按实蝇的交配雌蝇对寄主挥发物的反应更强，而未交配雌蝇对雄性信息素的反应更强。我们还检测了与去势雄蝇交配的雌蝇的嗅觉反应，这些去势雄蝇能够传递MAGs但不能传递精子。与在南美按实蝇（Wiedemann）中发现的情况不同，在这两个物种中，单独的MAGs不会引起交配后观察到的嗅觉反应变化。与去势雄蝇交配的雌蝇对雄性性信息素或寄主挥发物的反应相同，因此表明需要整个射精产物才能引发嗅觉反应中完整的行为转变。在这两种具有经济重要性的害虫中，MAGs的功能仍然未知。交配雌蝇对寄主挥发物的反应对诱饵和诱捕器的开发具有启示意义，这些诱饵和诱捕器应 preferably吸引并针对这一群体。 （注：“preferably”原文有误，可能是“preferentially”，翻译为“优先地” ）
