云杉花墨天牛雌成虫卵巢发育的研究

Forest Research(2023)

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Abstract
[目的]明确云杉花墨天牛雌成虫羽化后至性成熟的发育历期,及取食和交配行为对雌成虫卵巢发育的影响.[方法]采集云杉花墨老熟幼虫在室内饲养至羽化,将初羽化 1日龄的雌成虫分别用 4种方式处理:1)单独饲喂;2)单独饲养但不饲喂;3)与雄成虫一起饲喂;4)与雄成虫一起饲养但不饲喂.每日连续剖检雌成虫卵巢直至观察到雌成虫卵巢萎蔫或死亡.[结果]表明:1)云杉花墨天牛的卵巢发育过程分为 5级;2)未饲喂的云杉花墨天牛雌成虫卵巢发育至第2级后就停止发育;3)饲喂并交配的雌成虫卵巢在第14天发育成熟,饲喂但未交配的雌成虫卵巢在第17天发育成熟.[结论]可见云杉花墨天牛雌成虫需进行取食后其卵巢才能正常发育至成熟.此外,交配对雌成虫的卵巢发育具有促进作用,使发育历程缩短3天.
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Key words
Monochamus saltuarius,ovarian development,feeding,developmental duration,mating
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