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Does geographical origin affect lateralization and male mating success in Rhyzoperha dominica beetles?
Journal of Stored Products Research ( IF 2.7 ) Pub Date : 2020-09-01 , DOI: 10.1016/j.jspr.2020.101630
Maria C. Boukouvala , Donato Romano , Nickolas G. Kavallieratos , Christos G. Athanassiou , Cesare Stefanini , Giuseppe Conte , Angelo Canale , Giovanni Benelli

Abstract The lesser grain borer, Rhyzopertha dominica (F.) (Coleoptera: Bostrychidae), is an important pest of stored grains globally. In this study, the impact of geographical origin on male mating success and lateralization in three strains of R. dominica (i.e., a Greek strain, a Romanian strain and a Turkish strain) was investigated. Concerning the Greek strain, even though most males showed a left-biased approach, males performing right-biased copulation attempts achieved the highest proportion of successful copulations. Males of the Romanian and Turkish strains exhibited right-biased approaches and copulation attempts, resulting in higher mating success over the males that approached and performed copulation attempts from the left or backside of females. Copula was significantly longer than mate recognition and precopula phases. Furthermore, copula duration was significantly longer in the Turkish strain over the Romanian strain, while copula duration differences between Greek and Romanian individuals, as well as between Greek and Turkish individuals, were not significant. Unsuccessful sexual interactions were characterized by a longer precopula in Greek and Romanian strains, but not in the Turkish strain. Our results add basic knowledge to the mating behaviour of R. dominica, with emphasis on impact of the geographical origin and laterality on male mating success, which may be helpful for optimizing mass-rearing techniques of stored-product pests needed for large-scale laboratory or semi-field experiments, as well as to contribute to the development of behaviour-based control tools.

中文翻译:

地理起源是否会影响多米尼加丝虫的单侧化和雄性交配成功?

摘要 小螟Rhyzopertha dominica (F.) (Coleoptera: Bostrychidae) 是全球贮藏粮食的重要害虫。在这项研究中,研究了地理起源对多米尼克三株(即希腊株、罗马尼亚株和土耳其株)雄性交配成功和侧化的影响。关于希腊品系,尽管大多数雄性表现出偏左的方法,但进行右偏交配的雄性实现了最高比例的成功交配。罗马尼亚和土耳其品系的雄性表现出偏右的方法和交配尝试,导致比从雌性左侧或背面接近并进行交配尝试的雄性更高的交配成功率。Copula 明显长于配偶识别和 precopula 阶段。此外,土耳其语系的 copula 持续时间明显长于罗马尼亚语系,而希腊人和罗马尼亚人之间以及希腊人和土耳其人之间的 copula 持续时间差异并不显着。不成功的性互动的特点是希腊语和罗马尼亚语系中的前系词较长,但土耳其语系中没有。我们的研究结果为 R. dominica 的交配行为增加了基础知识,重点是地理起源和侧向性对雄性交配成功的影响,这可能有助于优化大规模实验室所需的贮藏害虫大规模饲养技术或半现场实验,以及有助于开发基于行为的控制工具。而希腊人和罗马尼亚人之间以及希腊人和土耳其人之间的 copula 持续时间差异并不显着。不成功的性互动在希腊语和罗马尼亚语系中的特征是更长的 precopula,但在土耳其语系中没有。我们的研究结果为 R. dominica 的交配行为增加了基础知识,重点是地理起源和侧向性对雄性交配成功的影响,这可能有助于优化大规模实验室所需的贮藏害虫大规模饲养技术或半现场实验,以及有助于开发基于行为的控制工具。而希腊人和罗马尼亚人之间以及希腊人和土耳其人之间的 copula 持续时间差异并不显着。不成功的性互动在希腊语和罗马尼亚语系中的特征是更长的 precopula,但在土耳其语系中没有。我们的研究结果为 R. dominica 的交配行为增加了基础知识,重点是地理起源和侧向性对雄性交配成功的影响,这可能有助于优化大规模实验室所需的贮藏害虫大规模饲养技术或半现场实验,以及有助于开发基于行为的控制工具。不成功的性互动的特点是希腊语和罗马尼亚语系中的前系词较长,但土耳其语系中没有。我们的研究结果为 R. dominica 的交配行为增加了基础知识,重点是地理起源和侧向性对雄性交配成功的影响,这可能有助于优化大规模实验室所需的贮藏害虫大规模饲养技术或半现场实验,以及有助于开发基于行为的控制工具。不成功的性互动在希腊语和罗马尼亚语系中的特征是更长的 precopula,但在土耳其语系中没有。我们的研究结果为 R. dominica 的交配行为增加了基础知识,重点是地理起源和侧向性对雄性交配成功的影响,这可能有助于优化大规模实验室所需的贮藏害虫大规模饲养技术或半现场实验,以及有助于开发基于行为的控制工具。
更新日期:2020-09-01
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