2016
Integrative taxonomy provides evidence for the species status of the Ibero-Maghrebian grass snake Natrix astreptophora
POKRANT, Felix; Carolin KINDLER; Martin IVANOV; Marc CHEYLAN; Philippe GENIEZ et. al.Základní údaje
Originální název
Integrative taxonomy provides evidence for the species status of the Ibero-Maghrebian grass snake Natrix astreptophora
Autoři
POKRANT, Felix; Carolin KINDLER; Martin IVANOV; Marc CHEYLAN; Philippe GENIEZ; Wolfgang BÖHME a Uwe FRITZ
Vydání
Biological Journal of the Linnean Society, HOBOKEN, WILEY-BLACKWELL, 2016, 0024-4066
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10602 Biology , Evolutionary biology
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.288
Kód RIV
RIV/00216224:14310/16:00108694
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000379784100012
EID Scopus
2-s2.0-84958725305
Klíčová slova anglicky
external morphology; molecular genetics; Natricidae; North-west Africa; osteology; Reptilia; Serpentes; South-west Europe; Squamata
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 9. 4. 2020 14:00, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
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.