Limited phylogeographic signal in sex-linked and autosomal loci despite geographically, ecologically, and phenotypically concordant structure of mtDNA variation in the Holarctic avian genus Eremophila.

Phylogeographic studies of Holarctic birds are challenging because they involve vast geographic scale, complex glacial history, extensive phenotypic variation, and heterogeneous taxonomic treatment across countries, all of which require large sample sizes. Knowledge about the quality of phylogeograp...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Sergei V Drovetski, Marko Raković, Georgy Semenov, Igor V Fadeev, Yaroslav A Red'kin
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/52f16375983c485898bb99298aab0d37
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:52f16375983c485898bb99298aab0d37
record_format	dspace
spelling	oai:doaj.org-article:52f16375983c485898bb99298aab0d372021-11-18T08:34:46ZLimited phylogeographic signal in sex-linked and autosomal loci despite geographically, ecologically, and phenotypically concordant structure of mtDNA variation in the Holarctic avian genus Eremophila.1932-620310.1371/journal.pone.0087570https://doaj.org/article/52f16375983c485898bb99298aab0d372014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24498139/?tool=EBIhttps://doaj.org/toc/1932-6203Phylogeographic studies of Holarctic birds are challenging because they involve vast geographic scale, complex glacial history, extensive phenotypic variation, and heterogeneous taxonomic treatment across countries, all of which require large sample sizes. Knowledge about the quality of phylogeographic information provided by different loci is crucial for study design. We use sequences of one mtDNA gene, one sex-linked intron, and one autosomal intron to elucidate large scale phylogeographic patterns in the Holarctic lark genus Eremophila. The mtDNA ND2 gene identified six geographically, ecologically, and phenotypically concordant clades in the Palearctic that diverged in the Early-Middle Pleistocene and suggested paraphyly of the horned lark (E. alpestris) with respect to the Temminck's lark (E. bilopha). In the Nearctic, ND2 identified five subclades which diverged in the Late Pleistocene. They overlapped geographically and were not concordant phenotypically or ecologically. Nuclear alleles provided little information on geographic structuring of genetic variation in horned larks beyond supporting the monophyly of Eremophila and paraphyly of the horned lark. Multilocus species trees based on two nuclear or all three loci provided poor support for haplogroups identified by mtDNA. The node ages calculated using mtDNA were consistent with the available paleontological data, whereas individual nuclear loci and multilocus species trees appeared to underestimate node ages. We argue that mtDNA is capable of discovering independent evolutionary units within avian taxa and can provide a reasonable phylogeographic hypothesis when geographic scale, geologic history, and phenotypic variation in the study system are too complex for proposing reasonable a priori hypotheses required for multilocus methods. Finally, we suggest splitting the currently recognized horned lark into five Palearctic and one Nearctic species.Sergei V DrovetskiMarko RakovićGeorgy SemenovIgor V FadeevYaroslav A Red'kinPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 1, p e87570 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Sergei V Drovetski Marko Raković Georgy Semenov Igor V Fadeev Yaroslav A Red'kin Limited phylogeographic signal in sex-linked and autosomal loci despite geographically, ecologically, and phenotypically concordant structure of mtDNA variation in the Holarctic avian genus Eremophila.
description	Phylogeographic studies of Holarctic birds are challenging because they involve vast geographic scale, complex glacial history, extensive phenotypic variation, and heterogeneous taxonomic treatment across countries, all of which require large sample sizes. Knowledge about the quality of phylogeographic information provided by different loci is crucial for study design. We use sequences of one mtDNA gene, one sex-linked intron, and one autosomal intron to elucidate large scale phylogeographic patterns in the Holarctic lark genus Eremophila. The mtDNA ND2 gene identified six geographically, ecologically, and phenotypically concordant clades in the Palearctic that diverged in the Early-Middle Pleistocene and suggested paraphyly of the horned lark (E. alpestris) with respect to the Temminck's lark (E. bilopha). In the Nearctic, ND2 identified five subclades which diverged in the Late Pleistocene. They overlapped geographically and were not concordant phenotypically or ecologically. Nuclear alleles provided little information on geographic structuring of genetic variation in horned larks beyond supporting the monophyly of Eremophila and paraphyly of the horned lark. Multilocus species trees based on two nuclear or all three loci provided poor support for haplogroups identified by mtDNA. The node ages calculated using mtDNA were consistent with the available paleontological data, whereas individual nuclear loci and multilocus species trees appeared to underestimate node ages. We argue that mtDNA is capable of discovering independent evolutionary units within avian taxa and can provide a reasonable phylogeographic hypothesis when geographic scale, geologic history, and phenotypic variation in the study system are too complex for proposing reasonable a priori hypotheses required for multilocus methods. Finally, we suggest splitting the currently recognized horned lark into five Palearctic and one Nearctic species.
format	article
author	Sergei V Drovetski Marko Raković Georgy Semenov Igor V Fadeev Yaroslav A Red'kin
author_facet	Sergei V Drovetski Marko Raković Georgy Semenov Igor V Fadeev Yaroslav A Red'kin
author_sort	Sergei V Drovetski
title	Limited phylogeographic signal in sex-linked and autosomal loci despite geographically, ecologically, and phenotypically concordant structure of mtDNA variation in the Holarctic avian genus Eremophila.
title_short	Limited phylogeographic signal in sex-linked and autosomal loci despite geographically, ecologically, and phenotypically concordant structure of mtDNA variation in the Holarctic avian genus Eremophila.
title_full	Limited phylogeographic signal in sex-linked and autosomal loci despite geographically, ecologically, and phenotypically concordant structure of mtDNA variation in the Holarctic avian genus Eremophila.
title_fullStr	Limited phylogeographic signal in sex-linked and autosomal loci despite geographically, ecologically, and phenotypically concordant structure of mtDNA variation in the Holarctic avian genus Eremophila.
title_full_unstemmed	Limited phylogeographic signal in sex-linked and autosomal loci despite geographically, ecologically, and phenotypically concordant structure of mtDNA variation in the Holarctic avian genus Eremophila.
title_sort	limited phylogeographic signal in sex-linked and autosomal loci despite geographically, ecologically, and phenotypically concordant structure of mtdna variation in the holarctic avian genus eremophila.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/52f16375983c485898bb99298aab0d37
work_keys_str_mv	AT sergeivdrovetski limitedphylogeographicsignalinsexlinkedandautosomallocidespitegeographicallyecologicallyandphenotypicallyconcordantstructureofmtdnavariationintheholarcticaviangenuseremophila AT markorakovic limitedphylogeographicsignalinsexlinkedandautosomallocidespitegeographicallyecologicallyandphenotypicallyconcordantstructureofmtdnavariationintheholarcticaviangenuseremophila AT georgysemenov limitedphylogeographicsignalinsexlinkedandautosomallocidespitegeographicallyecologicallyandphenotypicallyconcordantstructureofmtdnavariationintheholarcticaviangenuseremophila AT igorvfadeev limitedphylogeographicsignalinsexlinkedandautosomallocidespitegeographicallyecologicallyandphenotypicallyconcordantstructureofmtdnavariationintheholarcticaviangenuseremophila AT yaroslavaredkin limitedphylogeographicsignalinsexlinkedandautosomallocidespitegeographicallyecologicallyandphenotypicallyconcordantstructureofmtdnavariationintheholarcticaviangenuseremophila
_version_	1718421620780957696

Limited phylogeographic signal in sex-linked and autosomal loci despite geographically, ecologically, and phenotypically concordant structure of mtDNA variation in the Holarctic avian genus Eremophila.

Ejemplares similares