Adaptation and ecological speciation in seasonally varying environments at high latitudes : Drosophila virilis group
Hoikkala, A., & Poikela, N. (2022). Adaptation and ecological speciation in seasonally varying environments at high latitudes : Drosophila virilis group. Fly, 16(1), 85-104. https://doi.org/10.1080/19336934.2021.2016327
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© 2022 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.
Living in high latitudes and altitudes sets specific requirements on species’ ability to forecast seasonal changes and to respond to them in an appropriate way. Adaptation into diverse environmental conditions can also lead to ecological speciation through habitat isolation or by inducing changes in traits that influence assortative mating. In this review, we explain how the unique time-measuring systems of Drosophila virilis group species have enabled the species to occupy high latitudes and how the traits involved in species reproduction and survival exhibit strong linkage with latitudinally varying photoperiodic and climatic conditions. We also describe variation in reproductive barriers between the populations of two species with overlapping distributions and show how local adaptation and the reinforcement of prezygotic barriers have created partial reproductive isolation between conspecific populations. Finally, we consider the role of species-specific chromosomal inversions and the X chromosome in the development of reproductive barriers between diverging lineages.
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Informa UK LimitedISSN Search the Publication Forum
1933-6934Keywords
kromosomi-inversiot local adaptation circadian clock photoperiodic timer reproductive diapause cold tolerance reproductive barriers genome sequencing candidate genes chromosomal inversions Drosophila virilis group lajiutuminen lepotila muuntelu (biologia) sopeutuminen lisääntyminen mahlakärpäset ilmasto vuorokausirytmi elinympäristö kylmänkestävyys vuodenajat
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