J 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.