Journal article
Self-compatibility is over-represented on islands
The New phytologist, Vol.215(1), pp.469-478
07/2017
Handle:
https://hdl.handle.net/2376/112557
PMID: 28382619
Abstract
Because establishing a new population often depends critically on finding mates, individuals capable of uniparental reproduction may have a colonization advantage. Accordingly, there should be an over-representation of colonizing species in which individuals can reproduce without a mate, particularly in isolated locales such as oceanic islands. Despite the intuitive appeal of this colonization filter hypothesis (known as Baker's law), more than six decades of analyses have yielded mixed findings. We assembled a dataset of island and mainland plant breeding systems, focusing on the presence or absence of self-incompatibility. Because this trait enforces outcrossing and is unlikely to re-evolve on short timescales if it is lost, breeding system is especially likely to reflect the colonization filter. We found significantly more self-compatible species on islands than mainlands across a sample of > 1500 species from three widely distributed flowering plant families (Asteraceae, Brassicaceae and Solanaceae). Overall, 66% of island species were self-compatible, compared with 41% of mainland species. Our results demonstrate that the presence or absence of self-incompatibility has strong explanatory power for plant geographical patterns. Island floras around the world thus reflect the role of a key reproductive trait in filtering potential colonizing species in these three plant families.
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Details
- Title
- Self-compatibility is over-represented on islands
- Creators
- Dena L Grossenbacher - School of Biological Sciences, Washington State University, Pullman, WA, 99164, USAYaniv Brandvain - Department of Plant and Microbial Biology, University of Minnesota, Saint Paul, MN, 55108, USAJosh R Auld - Department of Biology, West Chester University, West Chester, PA, 19383, USAMartin Burd - School of Biological Sciences, Monash University, Melbourne, VIC, 3800, AustraliaPierre-Olivier Cheptou - CEFE UMR 5175, CNRS, Université de Montpellier, Université Paul-Valery Montpellier, EPHE, CEFE, 34293, Montpellier Cedex 05, FranceJeffrey K Conner - Kellogg Biological Station and Department of Plant Biology, Michigan State University, Hickory Corners, MI, 49060, USAAlannie G Grant - Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN, 37996, USAStephen M Hovick - Department of Evolution, Ecology, and Organismal Biology, Ohio State University, Columbus, OH, 43210, USAJohn R Pannell - Department of Ecology and Evolution, University of Lausanne, 1015, Lausanne, SwitzerlandAnton Pauw - Department of Botany and Zoology, Stellenbosch University, Stellenbosch, 7602, South AfricaTheodora Petanidou - Laboratory of Biogeography and Ecology, Department of Geography, University of the Aegean, 81100, Mytilene, Lesvos, GreeceApril M Randle - Department of Environmental Science, University of San Francisco, San Francisco, CA, 94117, USARafael Rubio de Casas - Departmento Ecología, Facultad de Ciencias, Universidad de Granada, Granada, UGR, 18071, Granada, SpainJana Vamosi - Department of Biological Sciences, University of Calgary, Calgary, AB, Canada, T2N 1N4Alice Winn - Department of Biological Science, Florida State University, Tallahassee, FL, 32306, USABoris Igic - Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL, 60607, USAJeremiah W Busch - School of Biological Sciences, Washington State University, Pullman, WA, 99164, USASusan Kalisz - Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN, 37996, USAEmma E Goldberg - Department of Ecology, Evolution, and Behavior, University of Minnesota, Saint Paul, MN, 55108, USA
- Publication Details
- The New phytologist, Vol.215(1), pp.469-478
- Academic Unit
- Biological Sciences, School of
- Publisher
- England
- Identifiers
- 99900547734801842
- Language
- English
- Resource Type
- Journal article