Title |
Multiple hybridization events, polyploidy and low postmating isolation entangle the evolution of neotropical species of Epidendrum (Orchidaceae)
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Published in |
BMC Ecology and Evolution, February 2014
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DOI | 10.1186/1471-2148-14-20 |
Pubmed ID | |
Authors |
Isabel Marques, David Draper, Lorena Riofrío, Carlos Naranjo |
Abstract |
Hybridization and polyploidy are central processes in evolution and speciation. These mechanisms often lead to complex patterns of genetic variation and the creation of novel genotypes, which may establish if they become isolated from gene flow. However, in the absence of reproductive isolation, species boundaries might easily be disrupted. Here, we used a combination of AFLPs, chloroplast DNA markers and flow cytometry to investigate the evolutionary outcomes of hybridization between two endemic Ecuadorian species of Epidendrum (E. madsenii and E. rhopalostele) in three hybrid zones. Postmating isolation was also quantified to determine the role of this barrier in restraining gene flow between hybrids and the parental species. In addition, future ecological niche models were constructed to predict the outcomes of hybridization between these species. |
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Country | Count | As % |
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Unknown | 1 | 100% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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United States | 2 | 2% |
Ecuador | 2 | 2% |
Brazil | 2 | 2% |
Unknown | 83 | 93% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Ph. D. Student | 19 | 21% |
Researcher | 14 | 16% |
Student > Master | 12 | 13% |
Student > Bachelor | 11 | 12% |
Professor | 7 | 8% |
Other | 19 | 21% |
Unknown | 7 | 8% |
Readers by discipline | Count | As % |
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Agricultural and Biological Sciences | 56 | 63% |
Biochemistry, Genetics and Molecular Biology | 9 | 10% |
Environmental Science | 7 | 8% |
Social Sciences | 2 | 2% |
Engineering | 2 | 2% |
Other | 3 | 3% |
Unknown | 10 | 11% |