Title |
Discord between morphological and phylogenetic species boundaries: incomplete lineage sorting and recombination results in fuzzy species boundaries in an asexual fungal pathogen
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Published in |
BMC Ecology and Evolution, March 2014
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DOI | 10.1186/1471-2148-14-38 |
Pubmed ID | |
Authors |
Jane E Stewart, Lavern W Timmer, Christopher B Lawrence, Barry M Pryor, Tobin L Peever |
Abstract |
Traditional morphological and biological species concepts are difficult to apply to closely related, asexual taxa because of the lack of an active sexual phase and paucity of morphological characters. Phylogenetic species concepts such as genealogical concordance phylogenetic species recognition (GCPSR) have been extensively used; however, methods that incorporate gene tree uncertainty into species recognition may more accurately and objectively delineate species. Using a worldwide sample of Alternaria alternata sensu lato, causal agent of citrus brown spot, the evolutionary histories of four nuclear loci including an endo-polygalacturonase gene, two anonymous loci, and one microsatellite flanking region were estimated using the coalescent. Species boundaries were estimated using several approaches including those that incorporate uncertainty in gene genealogies when lineage sorting and non-reciprocal monophyly of gene trees is common. |
X Demographics
Geographical breakdown
Country | Count | As % |
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Unknown | 2 | 100% |
Demographic breakdown
Type | Count | As % |
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Practitioners (doctors, other healthcare professionals) | 1 | 50% |
Members of the public | 1 | 50% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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United States | 2 | 2% |
Brazil | 2 | 2% |
Sweden | 1 | 1% |
United Kingdom | 1 | 1% |
Unknown | 82 | 93% |
Demographic breakdown
Readers by professional status | Count | As % |
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Researcher | 16 | 18% |
Student > Ph. D. Student | 14 | 16% |
Student > Master | 13 | 15% |
Student > Bachelor | 8 | 9% |
Student > Doctoral Student | 6 | 7% |
Other | 18 | 20% |
Unknown | 13 | 15% |
Readers by discipline | Count | As % |
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Agricultural and Biological Sciences | 54 | 61% |
Biochemistry, Genetics and Molecular Biology | 6 | 7% |
Immunology and Microbiology | 2 | 2% |
Social Sciences | 2 | 2% |
Nursing and Health Professions | 2 | 2% |
Other | 8 | 9% |
Unknown | 14 | 16% |