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Speciation of a tropical fungal species pair following transoceanic dispersal.
- Source :
-
Molecular phylogenetics and evolution [Mol Phylogenet Evol] 2009 Jun; Vol. 51 (3), pp. 413-26. Date of Electronic Publication: 2009 Mar 24. - Publication Year :
- 2009
-
Abstract
- This study focuses on a pair of fungal species, Moelleriella libera and M. raciborskii (Ascomycota: Clavicipitaceae) from the neotropics and paleotropics, respectively, that are phenotypically nearly indistinguishable. Molecular analyses based on DNA sequences from RNA polymerase II subunit 2 (RPB2), translation elongation factor 1-alpha (EF1-alpha) and beta-tubulin genes confirm that they are recently derived sister species. Speciation appears to have followed an historical transoceanic dispersal event. Models of population structure and migration from TCS, IM, and coalescent-based analyses suggest there is little gene flow between the two species. The direction of dispersal, investigated using the progression rule and coalescent-based gene genealogies, was likely from the New World to the Old World.
- Subjects :
- Ascomycota classification
DNA, Fungal genetics
Gene Flow
Genes, Fungal
Genetics, Population
Models, Genetic
Peptide Elongation Factor 1 genetics
RNA Polymerase II genetics
Sequence Alignment
Sequence Analysis, DNA
Species Specificity
Tubulin genetics
Ascomycota genetics
Evolution, Molecular
Genetic Speciation
Phylogeny
Subjects
Details
- Language :
- English
- ISSN :
- 1095-9513
- Volume :
- 51
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Molecular phylogenetics and evolution
- Publication Type :
- Academic Journal
- Accession number :
- 19324097
- Full Text :
- https://doi.org/10.1016/j.ympev.2009.03.014