Journal article
Revisiting the particular role of host shifts in initiating insect speciation
Evolution, Vol.71(5), pp.1126-1137
05/2017
DOI: 10.1111/evo.13164
PMID: 28052326
Abstract
The notion that shifts to new hosts can initiate insect speciation is more than 150 years old, yet widespread conflation with paradigms of sympatric speciation has led to confusion about how much support exists for this hypothesis. Here, we review 85 insect systems and evaluate the relationship between host shifting, reproductive isolation, and speciation. We sort insects into five categories: (1) systems in which a host shift has initiated speciation; (2) systems in which a host shift has made a contribution to speciation; (3) systems in which a host shift has caused the evolution of new reproductive isolating barriers; (4) systems with host-associated genetic differences; and (5) systems with no evidence of host-associated genetic differences. We find host-associated genetic structure in 65 systems, 43 of which show that host shifts have resulted in the evolution of new reproductive barriers. Twenty-six of the latter also support a role for host shifts in speciation, including eight studies that definitively support the hypothesis that a host shift has initiated speciation. While this review is agnostic as to the fraction of all insect speciation events to which host shifts have contributed, it clarifies that host shifts absolutely can and do initiate speciation.
Details
- Title: Subtitle
- Revisiting the particular role of host shifts in initiating insect speciation
- Creators
- Andrew A Forbes - Department of Biology, University of Iowa, Iowa City, Iowa, 52242Sara N Devine - Department of Biology, University of Iowa, Iowa City, Iowa, 52242Alaine C Hippee - Department of Biology, University of Iowa, Iowa City, Iowa, 52242Eric S Tvedte - Department of Biology, University of Iowa, Iowa City, Iowa, 52242Anna K G Ward - Department of Biology, University of Iowa, Iowa City, Iowa, 52242Heather A Widmayer - Department of Biology, University of Iowa, Iowa City, Iowa, 52242Caleb J Wilson - Department of Biology, University of Iowa, Iowa City, Iowa, 52242
- Resource Type
- Journal article
- Publication Details
- Evolution, Vol.71(5), pp.1126-1137
- DOI
- 10.1111/evo.13164
- PMID
- 28052326
- ISSN
- 0014-3820
- eISSN
- 1558-5646
- Grant note
- DOI: 10.13039/100000155, name: Division of Environmental Biology, award: 1145355, 1542269
- Language
- English
- Date published
- 05/2017
- Academic Unit
- Biology; Otolaryngology; University College Courses
- Record Identifier
- 9984217418902771
Metrics
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