Red de Biología Evolutiva, Instituto de Ecología, A.C. (INECOL), Carretera antigua a Coatepec 351, Col. El Haya, Xalapa, Veracruz C. P. 91073, Mexico.
Red de Biología Evolutiva, Instituto de Ecología, A.C. (INECOL), Carretera antigua a Coatepec 351, Col. El Haya, Xalapa, Veracruz C. P. 91073, Mexico.
Curr Opin Insect Sci. 2022 Dec;54:100966. doi: 10.1016/j.cois.2022.100966. Epub 2022 Sep 9.
Rapid range shifts are one of the most frequent responses to climate change in insect populations. Climate-induced range shifts can lead to the breakdown of isolation barriers, and thus, to an increase in hybridization and introgression. Long-term evolutionary consequences such as the formation of hybrid zones, introgression, speciation, and extinction have been predicted as a result of climate-induced hybridization. Our review shows that there has been an increase in the number of published cases of climate-induced hybridization in insects, and that the formation of hybrid zones and introgression seems to be, at the moment, the most frequent outcomes. Although introgression is considered positive, since it increases species' genetic diversity, in the long term, it could lead to negative outcomes such as species fusion or genetic swamping.
快速的分布范围变化是昆虫种群对气候变化最常见的反应之一。气候引起的分布范围变化会导致隔离屏障的崩溃，从而导致杂交和基因渐渗的增加。由于气候诱导的杂交，预计会出现长期的进化后果，如杂种带的形成、基因渐渗、物种形成和灭绝。我们的综述表明，昆虫中由气候引起的杂交的已发表案例数量有所增加，而且杂种带的形成和基因渐渗似乎是目前最常见的结果。尽管基因渐渗被认为是积极的，因为它增加了物种的遗传多样性，但从长远来看，它可能会导致负面结果，如物种融合或遗传淹没。
