Self-compatibility is over-represented on islands.
- Grossenbacher DL Department of Biology, California Polytechnic State University, San Luis Obispo, CA, 93407, USA.
- Brandvain Y Department of Plant and Microbial Biology, University of Minnesota, Saint Paul, MN, 55108, USA.
- Auld JR Department of Biology, West Chester University, West Chester, PA, 19383, USA.
- Burd M School of Biological Sciences, Monash University, Melbourne, VIC, 3800, Australia.
- Cheptou PO CEFE UMR 5175, CNRS, Université de Montpellier, Université Paul-Valery Montpellier, EPHE, CEFE, 34293, Montpellier Cedex 05, France.
- Conner JK Kellogg Biological Station and Department of Plant Biology, Michigan State University, Hickory Corners, MI, 49060, USA.
- Grant AG Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN, 37996, USA.
- Hovick SM Department of Evolution, Ecology, and Organismal Biology, Ohio State University, Columbus, OH, 43210, USA.
- Pannell JR Department of Ecology and Evolution, University of Lausanne, 1015, Lausanne, Switzerland.
- Pauw A Department of Botany and Zoology, Stellenbosch University, Stellenbosch, 7602, South Africa.
- Petanidou T Laboratory of Biogeography and Ecology, Department of Geography, University of the Aegean, 81100, Mytilene, Lesvos, Greece.
- Randle AM Department of Environmental Science, University of San Francisco, San Francisco, CA, 94117, USA.
- Rubio de Casas R Departmento Ecología, Facultad de Ciencias, Universidad de Granada, Granada, UGR, 18071, Granada, Spain.
- Vamosi J Department of Biological Sciences, University of Calgary, Calgary, AB, Canada, T2N 1N4.
- Winn A Department of Biological Science, Florida State University, Tallahassee, FL, 32306, USA.
- Igic B Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL, 60607, USA.
- Busch JW School of Biological Sciences, Washington State University, Pullman, WA, 99164, USA.
- Kalisz S Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN, 37996, USA.
- Goldberg EE Department of Ecology, Evolution, and Behavior, University of Minnesota, Saint Paul, MN, 55108, USA.
- 2017-04-07
Published in:
- The New phytologist. - 2017
Baker's law
biogeography
ecological filtering
island
mainland
self-incompatibility
Asteraceae
Brassicaceae
Islands
Reproduction, Asexual
Solanaceae
English
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.
- Language
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- English
- Open access status
- hybrid
- Identifiers
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- DOI 10.1111/nph.14534
- PMID 28382619
- Persistent URL
- https://sonar.ch/global/documents/84500
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