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@article{1366169,
author = {Pokrant, Felix and Kindler, Carolin and Ivanov, Martin and Cheylan, Marc and Geniez, Philippe and Böhme, Wolfgang and Fritz, Uwe},
article_location = {HOBOKEN},
article_number = {4},
doi = {http://dx.doi.org/10.1111/bij.12782},
keywords = {external morphology; molecular genetics; Natricidae; North-west Africa; osteology; Reptilia; Serpentes; South-west Europe; Squamata},
language = {eng},
issn = {0024-4066},
journal = {Biological Journal of the Linnean Society},
title = {Integrative taxonomy provides evidence for the species status of the Ibero-Maghrebian grass snake Natrix astreptophora},
url = {http://dx.doi.org/10.1111/bij.12782},
volume = {118},
year = {2016}
}
TY - JOUR
ID - 1366169
AU - Pokrant, Felix - Kindler, Carolin - Ivanov, Martin - Cheylan, Marc - Geniez, Philippe - Böhme, Wolfgang - Fritz, Uwe
PY - 2016
TI - Integrative taxonomy provides evidence for the species status of the Ibero-Maghrebian grass snake Natrix astreptophora
JF - Biological Journal of the Linnean Society
VL - 118
IS - 4
SP - 873-888
EP - 873-888
PB - WILEY-BLACKWELL
SN - 00244066
KW - external morphology
KW - molecular genetics
KW - Natricidae
KW - North-west Africa
KW - osteology
KW - Reptilia
KW - Serpentes
KW - South-west Europe
KW - Squamata
UR - http://dx.doi.org/10.1111/bij.12782
L2 - http://dx.doi.org/10.1111/bij.12782
N2 - The grass snake (Natrix natrix) is Europe's most widely distributed and, in many regions, most common snake species, with many morphologically defined subspecies. Yet, the taxonomy of grass snakes is relatively little studied and recent work has shown major conflicts between morphologically defined subspecies and phylogeographical differentiation. Using external morphology, osteological characters, and information from 13 microsatellite loci and two mitochondrial markers, we examine differentiation of the subspecies N. n. astreptophora from the North African Maghreb region, the Iberian Peninsula and neighbouring France. According to previous studies, N. n. astreptophora corresponds to a deeply divergent mitochondrial clade and constitutes the sister taxon of all remaining grass snakes. In the French Pyrenees region, there is a contact zone of N. n. astreptophora with another subspecies, N. n. helvetica. Our analyses of microsatellites and mitochondrial DNA reveal that the distribution ranges of the two taxa abut there, but both hybridize only exceptionally. Even though many morphological characters are highly variable and homoplastic in grass snakes, N. n. astreptophora differs consistently from all other grass snakes by its reddish iris coloration and in having significantly fewer ventral scales and another skull morphology. Considering further the virtual absence of gene flow between N. n. astreptophora and N. n. helvetica, and acknowledging the morphological distinctiveness of N. n. astreptophora and its sister group relationship to all remaining subspecies of grass snakes, we conclude that Natrix astreptophora (Seoane, 1884) should be recognized as a distinct species. Further research is needed to explore whether N.astreptophora is polytypic because a single sample of N.astreptophora from Tunisia turned out to be genetically highly distinct from its European conspecifics.
ER -
POKRANT, Felix, Carolin KINDLER, Martin IVANOV, Marc CHEYLAN, Philippe GENIEZ, Wolfgang BÖHME a Uwe FRITZ. Integrative taxonomy provides evidence for the species status of the Ibero-Maghrebian grass snake Natrix astreptophora. \textit{Biological Journal of the Linnean Society}. HOBOKEN: WILEY-BLACKWELL, 2016, roč.~118, č.~4, s.~873-888. ISSN~0024-4066. Dostupné z: https://dx.doi.org/10.1111/bij.12782.
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