The Tangled Evolutionary Legacies of Range Expansion and Hybridization

Daniele Canestrelli; Daniele Porretta; Winsor H. Lowe; Roberta Bisconti; Claudio Carere; Giuseppe Nascetti

doi:10.1016/j.tree.2016.06.010

The Tangled Evolutionary Legacies of Range Expansion and Hybridization

Daniele Canestrelli
, Daniele Porretta
, Winsor H. Lowe
, Roberta Bisconti
, Claudio Carere
, Giuseppe Nascetti

Division of Biological and Biomedical Sciences

Research output: Contribution to journal › Review article › peer-review

62 Scopus citations

Abstract

Spatial sorting of dispersal-enhancing traits has been implicated in substantial directional changes in the phenotypic and genotypic makeup of populations undergoing range expansion. We explore here the evolutionary consequences of such changes when two divergent lineages come into secondary contact. We combine instances from the study of contemporary range expansions and historical hybridizations, and highlight links between dispersal, sexual, and physiological traits during the non-equilibrium conditions imposed by range expansions. We argue that a stronger research focus on processes of spatial sorting of multiple traits will improve our understanding of subsequent hybridization dynamics and their evolutionary outcomes, including genomic introgression and speciation.

Original language	English
Pages (from-to)	677-688
Number of pages	12
Journal	Trends in Ecology and Evolution
Volume	31
Issue number	9
DOIs	https://doi.org/10.1016/j.tree.2016.06.010
State	Published - Sep 1 2016

Funding

We wish to dedicate this work to the loving memory of Prof. Godfrey Hewitt, a giant as a scientist and as a mentor, who seeded most of the arguments put forward in this article through fervid discussions with a ‘dirty student’. We are extremely grateful to Paul Craze and two anonymous reviewers for their insightful comments on an early version of this manuscript. D.C. and R.B. were supported by a grant from the Italian Ministry of Education, University, and Research (PRIN project 2012FRHYRA). W.H.L. was supported by National Science Foundation grants DEB-1050459 and DEB-1258203. C.C. was supported by the European Commission (H2020-MSCA-IF-2014-659106).

Funders	Funder number
DEB-1258203, DEB-1050459
659106
European Commission	H2020-MSCA-IF-2014-659106
2012FRHYRA

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abstract = "Spatial sorting of dispersal-enhancing traits has been implicated in substantial directional changes in the phenotypic and genotypic makeup of populations undergoing range expansion. We explore here the evolutionary consequences of such changes when two divergent lineages come into secondary contact. We combine instances from the study of contemporary range expansions and historical hybridizations, and highlight links between dispersal, sexual, and physiological traits during the non-equilibrium conditions imposed by range expansions. We argue that a stronger research focus on processes of spatial sorting of multiple traits will improve our understanding of subsequent hybridization dynamics and their evolutionary outcomes, including genomic introgression and speciation.",

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AU - Lowe, Winsor H.

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AU - Carere, Claudio

AU - Nascetti, Giuseppe

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AB - Spatial sorting of dispersal-enhancing traits has been implicated in substantial directional changes in the phenotypic and genotypic makeup of populations undergoing range expansion. We explore here the evolutionary consequences of such changes when two divergent lineages come into secondary contact. We combine instances from the study of contemporary range expansions and historical hybridizations, and highlight links between dispersal, sexual, and physiological traits during the non-equilibrium conditions imposed by range expansions. We argue that a stronger research focus on processes of spatial sorting of multiple traits will improve our understanding of subsequent hybridization dynamics and their evolutionary outcomes, including genomic introgression and speciation.

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JO - Trends in Ecology and Evolution

JF - Trends in Ecology and Evolution

IS - 9

ER -

The Tangled Evolutionary Legacies of Range Expansion and Hybridization

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