A Combinatorial View on Speciation and Adaptive Radiation

Marques, David Alexander; Meier, Joana; Seehausen, Ole (2019). A Combinatorial View on Speciation and Adaptive Radiation. Trends in ecology & evolution, 34(6), pp. 531-544. Elsevier 10.1016/j.tree.2019.02.008

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Speciation is often thought of as a slow process due to the waiting times for mutations that cause incompatibilities, and permit ecological differentiation or assortative mating. Cases of rapid speciation and particularly cases of rapid adaptive radiation into multiple sympatric species have remained somewhat mysterious. We review recent findings from speciation genomics that reveal an emerging commonality among such cases: reassembly of old genetic variation into new combinations facilitating rapid speciation and adaptive radiation. The polymorphisms in old variants frequently originated from hybridization at some point in the past. We discuss why old variants are particularly good fuel for rapid speciation, and hypothesize that variation in access to such old variants might contribute to the large variation in speciation rates observed in nature.

Item Type:

Journal Article (Review Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE)
08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE) > Aquatic Ecology

UniBE Contributor:

Marques, David Alexander; Meier, Joana and Seehausen, Ole

Subjects:

500 Science > 570 Life sciences; biology

ISSN:

0169-5347

Publisher:

Elsevier

Language:

English

Submitter:

Marcel Häsler

Date Deposited:

20 May 2019 17:23

Last Modified:

23 Oct 2019 11:42

Publisher DOI:

10.1016/j.tree.2019.02.008

PubMed ID:

30885412

BORIS DOI:

10.7892/boris.128446

URI:

https://boris.unibe.ch/id/eprint/128446

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