Sergei V. Drovetski, Andrew B. Reeves, Yaroslav A. Red'kin, Igor V. Fadeev, Evgeniy A. Koblik, Vladimir N. Sotnikov, Gary Voelker. Multi-locus reassessment of a striking discord between mtDNA gene trees and taxonomy across two congeneric species complexes. Molecular Phylogenetics and Evolution. In Press, Accepted Manuscript, Available online 7 December 2017.
Abstract:
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.
What is actually meant by this, the last sentence of the abstract? It does not seem very clear to me.This mito-nuclear discord results from mtDNA representing the biogeographic, but not evolutionary history of these recently radiated Palearctic wagtails.
What is actually meant by this, the last sentence of the abstract? It does not seem very clear to me. Niels
What is actually meant by this, the last sentence of the abstract? It does not seem very clear to me.
Niels
Thanks for the answers. Statements such as the inadequacy of mitochondrial markers, etc, I think fit with previous sentences of the abstract. What I have difficulty with is the biogeography being explained but the evolution not by the M. DNA. Maybe the meaning would become clear after reading the entire paper (I have not tried getting my hands on it so do not know if it is possible) -- but as written, is the last sentence more than just hot air?
Niels
Thanks for the answers. Statements such as the inadequacy of mitochondrial markers, etc, I think fit with previous sentences of the abstract. What I have difficulty with is the biogeography being explained but the evolution not by the M. DNA. Maybe the meaning would become clear after reading the entire paper (I have not tried getting my hands on it so do not know if it is possible) -- but as written, is the last sentence more than just hot air?
Niels
Rebecca B. Harris, Per Alström, Anders Ödeen, Adam D. Leaché. Discordance between genomic divergence and phenotypic variation in a rapidly evolving avian genus (Motacilla). Molecular Phylogenetics and Evolution, In Press, Accepted Manuscript, Available online 12 December 2017.
Abstract:
Same as post #4? Any difference?
It was preprint on arXiv. Now it's reviewed and accepted in a journal.
Van Els, P. and Norambuena, H. V. (), A revision of species limits in Neotropical pipits Anthus based on multilocus genetic and vocal data. Ibis. Accepted Author Manuscript. doi:10.1111/ibi.12511
Abstract:
Previous investigations of the systematics of Neotropical pipits Anthus revealed multiple cases of paraphyly. We revise the species limits of this group based on sequence data of mitochondrial (ND2) and nuclear genes (ACOI9, MB, FGB5) from 39 tissue samples of all 22 subspecies-level taxa in the New World Anthus clade, as well as analysis of display song. We found that Anthus lutescens peruvianus is not part of Yellowish Pipit Anthus lutescens genetically or vocally; thus, we elevate peruvianus to species rank (Peruvian Pipit). Anthus lutescens abariensis Chubb (1921a) should be placed in synonymy with A. l. parvus (instead of A. l. lutescens), at least until further morphological or vocal data becomes available. Paramo Pipit A. bogotensis is likewise paraphyletic, with meridae sister to all other bogotensis subspecies and also to Hellmayr's Pipit A. hellmayri. However, placement of the taxon is based on a relatively short stretch of mitochondrial DNA, and further data are needed. Andean populations of Short-billed Pipit A. furcatus are split as Puna Pipit A. brevirostris, based on genetic and vocal data. South Georgia Pipit A. antarcticus is, at least genetically, part of Correndera Pipit A. correndera, and we recommend considering it a subspecies of Correndera Pipit, in line with the taxonomy of other morphologically distinct but genetically little-differentiated insular bird taxa.
Van Els, P. and Norambuena, H. V. (), A revision of species limits in Neotropical pipits Anthus based on multilocus genetic and vocal data. Ibis. Accepted Author Manuscript. doi:10.1111/ibi.12511
Abstract:
Previous investigations of the systematics of Neotropical pipits Anthus revealed multiple cases of paraphyly. We revise the species limits of this group based on sequence data of mitochondrial (ND2) and nuclear genes (ACOI9, MB, FGB5) from 39 tissue samples of all 22 subspecies-level taxa in the New World Anthus clade, as well as analysis of display song. We found that Anthus lutescens peruvianus is not part of Yellowish Pipit Anthus lutescens genetically or vocally; thus, we elevate peruvianus to species rank (Peruvian Pipit). Anthus lutescens abariensis Chubb (1921a) should be placed in synonymy with A. l. parvus (instead of A. l. lutescens), at least until further morphological or vocal data becomes available. Paramo Pipit A. bogotensis is likewise paraphyletic, with meridae sister to all other bogotensis subspecies and also to Hellmayr's Pipit A. hellmayri. However, placement of the taxon is based on a relatively short stretch of mitochondrial DNA, and further data are needed. Andean populations of Short-billed Pipit A. furcatus are split as Puna Pipit A. brevirostris, based on genetic and vocal data. South Georgia Pipit A. antarcticus is, at least genetically, part of Correndera Pipit A. correndera, and we recommend considering it a subspecies of Correndera Pipit, in line with the taxonomy of other morphologically distinct but genetically little-differentiated insular bird taxa.