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Multigenic and morphometric differentiation of ground squirrels (Spermophilus, Scuiridae, Rodentia) in Turkey, with a description of a new species

Gunduz, Islam; Jaarola, Maarit LU ; Tez, Coskun; Yeniyurt, Can; Polly, P. David and Searle, Jeremy B. (2007) In Molecular Phylogenetics and Evolution 43(3). p.916-935
Abstract
This study reports on the molecular phylogenetics of ground squirrels, genus Spermophilus, in Turkey using cytochrome b (1140 bp), part of the D-loop and flanking tRNAs (572 bp), X chromosome (867-1051 bp) and Y chromosome (983-989 bp) DNA sequences. Individuals also were characterized by karyotype and with geometric morphometric analyses of mandibles and skulls. Two hundred fourteen individuals from 91 localities were studied. All the data support the recognition of a new species in SW Anatolia: the Taurus ground squirrel Spermophilus taurensis sp. nov. The new species has a small distribution in the Taurus Mountains in an area that is a hotspot for biodiversity. Molecular clock analysis suggests that the new species diverged from the... (More)
This study reports on the molecular phylogenetics of ground squirrels, genus Spermophilus, in Turkey using cytochrome b (1140 bp), part of the D-loop and flanking tRNAs (572 bp), X chromosome (867-1051 bp) and Y chromosome (983-989 bp) DNA sequences. Individuals also were characterized by karyotype and with geometric morphometric analyses of mandibles and skulls. Two hundred fourteen individuals from 91 localities were studied. All the data support the recognition of a new species in SW Anatolia: the Taurus ground squirrel Spermophilus taurensis sp. nov. The new species has a small distribution in the Taurus Mountains in an area that is a hotspot for biodiversity. Molecular clock analysis suggests that the new species diverged from the European ground squirrel, Spermophilus citellus, about 2.5 million years ago and that the ancestor of these two species diverged from the widespread Anatolian ground squirrel, Spermophilus xanthoprymnus, about 5 million years ago. Morphometric differentiation in skull and mandible shape among the three species is incomplete, but statistically significant. S. xanthoprymnus is subdivided into five cytochrome b phylogroups and we use these data to infer the location of glacial refugia where the species lived during the last glacial maximum. This study illustrates the potential of combined molecular and morphometric studies to uncover new Anatolian species and to reconstruct their phylogeographic history. The new species is important for squirrel taxonomy and for understanding Eurasian mammal evolution. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
chromosome sequences, X, Spermophilus, phylogeography, cytochrome b, geometric morphometrics, Y chromosome sequences
in
Molecular Phylogenetics and Evolution
volume
43
issue
3
pages
916 - 935
publisher
Elsevier
external identifiers
  • wos:000247539000016
  • scopus:34248645413
ISSN
1095-9513
DOI
10.1016/j.ympev.2007.02.021
language
English
LU publication?
yes
id
9f3b706f-a7be-4953-be21-f3e140275a33 (old id 648027)
date added to LUP
2007-12-07 13:42:39
date last changed
2017-08-13 03:45:43
@article{9f3b706f-a7be-4953-be21-f3e140275a33,
  abstract     = {This study reports on the molecular phylogenetics of ground squirrels, genus Spermophilus, in Turkey using cytochrome b (1140 bp), part of the D-loop and flanking tRNAs (572 bp), X chromosome (867-1051 bp) and Y chromosome (983-989 bp) DNA sequences. Individuals also were characterized by karyotype and with geometric morphometric analyses of mandibles and skulls. Two hundred fourteen individuals from 91 localities were studied. All the data support the recognition of a new species in SW Anatolia: the Taurus ground squirrel Spermophilus taurensis sp. nov. The new species has a small distribution in the Taurus Mountains in an area that is a hotspot for biodiversity. Molecular clock analysis suggests that the new species diverged from the European ground squirrel, Spermophilus citellus, about 2.5 million years ago and that the ancestor of these two species diverged from the widespread Anatolian ground squirrel, Spermophilus xanthoprymnus, about 5 million years ago. Morphometric differentiation in skull and mandible shape among the three species is incomplete, but statistically significant. S. xanthoprymnus is subdivided into five cytochrome b phylogroups and we use these data to infer the location of glacial refugia where the species lived during the last glacial maximum. This study illustrates the potential of combined molecular and morphometric studies to uncover new Anatolian species and to reconstruct their phylogeographic history. The new species is important for squirrel taxonomy and for understanding Eurasian mammal evolution.},
  author       = {Gunduz, Islam and Jaarola, Maarit and Tez, Coskun and Yeniyurt, Can and Polly, P. David and Searle, Jeremy B.},
  issn         = {1095-9513},
  keyword      = {chromosome sequences,X,Spermophilus,phylogeography,cytochrome b,geometric morphometrics,Y chromosome sequences},
  language     = {eng},
  number       = {3},
  pages        = {916--935},
  publisher    = {Elsevier},
  series       = {Molecular Phylogenetics and Evolution},
  title        = {Multigenic and morphometric differentiation of ground squirrels (Spermophilus, Scuiridae, Rodentia) in Turkey, with a description of a new species},
  url          = {http://dx.doi.org/10.1016/j.ympev.2007.02.021},
  volume       = {43},
  year         = {2007},
}