Multi-locus reassessment of a striking discord between mtDNA gene trees and taxonomy across two congeneric species complexes
| Autor: | Yaroslav A. Red'kin, Evgeniy A. Koblik, Igor V. Fadeev, Andrew B. Reeves, Gary Voelker, Vladimir N. Sotnikov, Sergei V. Drovetski |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
0301 basic medicine Systematics Mitochondrial DNA Species complex Locus (genetics) 010603 evolutionary biology 01 natural sciences DNA Mitochondrial 03 medical and health sciences Species Specificity Phylogenetics Genetics Animals Passeriformes Clade Molecular Biology Ecology Evolution Behavior and Systematics Phylogeny Cell Nucleus biology Base Sequence Geography NADH Dehydrogenase Wagtail Sequence Analysis DNA biology.organism_classification Introns 030104 developmental biology Haplotypes Evolutionary biology Genetic Loci Taxonomy (biology) |
| Zdroj: | Molecular phylogenetics and evolution. 120 |
| ISSN: | 1095-9513 |
| Popis: | Resolving relationships among members of the yellow and citrine wagtail species complexes is among the greatest challenges in avian systematics due to arguably the most dramatic disagreements between traditional taxonomy and mtDNA phylogeny. Each species complex is divided into three geographically cohesive mtDNA clades. Each clade from one species complex has a sister from the other complex. Furthermore, one cross-complex pair is more distantly related to the remaining two pairs than are several other wagtail species. To test mtDNA gene tree topology, we sequenced the mtDNA ND2 gene and 11 nuclear introns for seven wagtail species. Our mtDNA gene tree reconstruction supported the results of previous studies, thereby confirming the disagreement between mtDNA phylogeny and taxonomy. However, our multi-locus species tree which used mtDNA clades as “taxa” was consistent with traditional taxonomy regardless of whether mtDNA was included in the analysis or not. Our multi-locus data suggest that despite the presence of strongly supported, geographically structured mtDNA variation, the mtDNA gene tree misrepresents the evolutionary history of the yellow and citrine wagtail complexes. This mito-nuclear discord results from mtDNA representing the biogeographic, but not evolutionary history of these recently radiated Palearctic wagtails. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect