Evolutionary Biology and Ecology, Université libre de Bruxelles, Brussels, Belgium.
Evolutionary Biology and Ecology, Université libre de Bruxelles, Brussels, Belgium.
Curr Opin Insect Sci. 2021 Aug;46:1-9. doi: 10.1016/j.cois.2020.12.004. Epub 2021 Jan 20.
Hybridization may help drive biological invasions by reducing Allee effects, increasing genetic variation, and generating novel adaptive genotypes/phenotypes. Social insects (ants, bees, wasps, and termites) are among the world's worst invasive species. In this review, we study the relationship between hybridization and invasiveness in social insects. We examine three types of hybridization based on the reproductive characteristics of first-generation hybrids. We discuss several examples of the association between hybridization and invasiveness, which are predominantly found in bees and termites. However, hybridization also occurs in several non-invasive species, and highly invasive species are not consistently associated with hybridization events, indicating that hybridization is not a main driver of invasiveness in social insects. We discuss why hybridization is not more commonly seen in invasive social insects.
杂交可能通过减少阿利效应、增加遗传变异和产生新的适应性基因型/表型来帮助推动生物入侵。社会性昆虫（蚂蚁、蜜蜂、黄蜂和白蚁）是世界上最具侵略性的物种之一。在这篇综述中，我们研究了社会性昆虫中杂交与入侵性之间的关系。我们根据第一代杂种的繁殖特征检查了三种类型的杂交。我们讨论了几个与杂交和入侵性相关的例子，这些例子主要发生在蜜蜂和白蚁中。然而，杂交也发生在几个非入侵性物种中，而且高度入侵性物种并不总是与杂交事件相关联，这表明杂交不是社会性昆虫入侵性的主要驱动因素。我们讨论了为什么杂交在入侵性社会性昆虫中不那么常见。
