Genetic structuring of Pseudopus apodus (Pallas, 1775) (Sauria: Anguidae) in north Anatolia, Turkey

Keskin, Emre; Tok, Cemal Varol; Hayretdağ, Sibel; Çiçek, Kerim; Ayaz, Dinçer

doi:10.1016/j.bse.2013.06.003

Cited by 3 publications

(7 citation statements)

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“…The 727‐bp fragment of ND2 forms seven unique haplotypes and the 591‐bp fragment of Cytb revealed nine haplotypes, which were supplemented by an additional six haplotypes obtained from 429‐bp fragment of the same gene from the study of Keskin et al. (). Phylogenetic reconstructions, performed separately for both fragments due to the different representation of samples in both datasets, inferred three lineages within the species with high supports in both BI and ML analyses (Figure ).…”

Section: Resultsmentioning

confidence: 99%

“…The subspecies P. a. apodus has four unique haplotypes in ND2 and five in Cytb, while P. a. thracius has only two ND2 haplotypes but nine Cytb haplotypes. However, the P. a. thracius ND2 sequences originated from only 16 localities, while the Cytb dataset contained P. a. thracius sequences from additional localities in Turkey (obtained from Keskin et al., ), which added more variation to this dataset. Compared to P. a. apodus and P. a. thracius , a surprisingly high variation was found in the Southern lineage, where three ND2 sequences belong each to a unique haplotype (Table , Figure ).…”

Section: Resultsmentioning

confidence: 99%

“…The structure within the two widespread lineages corresponding to P. a. apodus and P. a. thracius is very similar as is illustrated in haplotype networks of both mtDNA markers: samples collected from the vast majority of localities belong to one haplotype and the remaining haplotypes are derived more or less directly from the most common haplotype as suggested by the star‐like pattern of the networks (Figure ). This simple picture seems to be a bit more complicated in Cytb of P. a. thracius in which some samples from localities in Turkey (obtained from Keskin et al., ) form a complex network of relationships. Haplotypes of the Southern lineage are relatively distant from those of the two widespread lineages, and haplotype network in ND2 marker indicates numerous missing haplotypes (Figure ).…”

Section: Resultsmentioning

confidence: 99%

“…In their mtDNA study, Keskin et al. () mentioned the possibility of the existence of another species based on a sample from eastern Anatolia. However, this individual (locality 39, Digor in Figures and ) bears the most common Cytb haplotype of P. a. apodus (c1) widespread in the Caucasus and northeastern Turkey, while all other sequences from their analysis cluster with our P. a. thracius samples.…”

Section: Discussionmentioning

confidence: 99%

“…Recognition of a separate form was based on morphological differentiation, but doubts were published about exact distribution of the subspecies and sufficiency of the diagnostic characters for an unambiguous identification (Rifai et al., ; Szczerbak & Tertyshnikov, ; Thieme, ). Recently, Keskin, Tok, Hayretda, Çiçek, and Ayaz () studied genetic structure of northern Anatolian P. apodus and found that there might exist hidden diversity that is not properly reflected in recent taxonomy. This somehow resembles the past situation in the closest recent relative of P. apodus , genus Anguis , in which simplified morphology obscured real diversity before methods of molecular‐phylogenetic analysis helped reveal deep divergences among several phylogenetic lineages (Gvoždík, Jandzik, Lymberakis, Jablonski, & Moravec, ; Gvoždík et al., ; Jablonski et al., ; Thanou, Giokas, & Kornilios, ).…”

Section: Introductionmentioning

confidence: 99%

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Pleistocene extinctions and recent expansions in an anguid lizard of the genus Pseudopus

et al. 2017

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Climatic changes during the Pleistocene played an instrumental role in the shaping recent distribution and diversity of the Western Palearctic biota. Range oscillations often lead to allopatric differentiation followed by the establishment of secondary contact zones. As a result, many species are composed of complex networks of phylogenetic lineages with different histories. Pseudopus apodus is the only surviving member of an ancient genus of Western Palearctic anguid lizards (Anguidae) distributed from the Balkans through Anatolia and Caucasus to central Asia. Here, we used mitochondrial and nuclear DNA sequences to reconstruct the evolutionary history of the species in phylogeographic and demographic frameworks. Our analyses revealed three main phylogenetic lineages that diverged during or shortly before the Pleistocene. Two of them more or less correspond to the known subspecies, and their low genetic variability suggests relatively recent dispersal and colonization of vast parts of the range. The third, southern, lineage is more geographically restricted and diversified than the other two. This pattern shows that the Quaternary climatic oscillations presumably caused repeated large-scale population extinctions of the species, depleting most of its diversity. Only a few refugia located in Anatolia, Levant, and Transcaucasia served as sources for subsequent recolonization to the areas of the recent distribution. This is in contrast to many other Western Palearctic reptiles that survived unfavorable climatic conditions in numerous local refugia and sanctuaries, which resulted in more complex phylogenetic structure. K E Y W O R D Sanguidae, phylogeography

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Pleistocene extinctions and recent expansions in an anguid lizard of the genus Pseudopus

et al. 2017

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Phylogenetic relationships and divergence dating in the Glass Lizards (Anguinae)

Lavin

Girman

2019

Molecular Phylogenetics and Evolution

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The Glass Lizards are a subfamily (Anguinae) of Anguid Lizards with an elongated limbless body plan that occur throughout the Northern Hemisphere primarily in North America, Europe, and Asia, but also have a presence in North Africa and Indonesia. We use twenty-five nuclear and mtDNA loci to generate a phylogeny to explore species relationships within the group as well as divergence dating. We also examine the group in the context of a coalescent species tree analysis and species delimitation. All major lineages were found to be monophyletic with potential cryptic diversity in some. The Anguinae are an old group first appearing in the Eocene and most lineages present by the beginning of the Miocene. The Anguinae likely did originate in Europe from an Anguidae ancestor that crossed the Thulean land Bridge, spreading to Asia after the drying of the Turgai Sea, then across Beringia as the climate permitted. Species delimitation did not support every accepted species grouping some closely related species together as units. A BAMM analysis found a steady rate of speciation.

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Türkiye’de Yaşayan Anguid Kertenkelelerdeki Osteodermler ve Arka Bacak Kalıntıları İskelet Kronolojisi Metodunda Kullanılabilir mi?

Yakın¹,

Tok²

2020

Afyon Kocatepe University Journal of Sciences and Engineering

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Skeletochronology is a widely used and considered as a reliable method for estimating the age of the lizards. While this method is used the cross sections of the long bones (femur, humerus, phalanges etc.) were examined, resting lines (Lag) were counted. For the species without long bones, this method applied on vertebras and osteoderms. Using osteoderms for this method is important to estimate ages of the species. Pseudopus apodus and Anguis fragilis complex which are the two legless lizards of the Turkish herpetofauna, killed because of being snake-like lizards when they face the humans. Thus, estimating this species ages will be a basis for the future conservation and monitoring studies. In this study, osteoderms of the Anguids (Anguis fragilis complex, Pseudopus apodus) collected from the northern part of Turkey (north part of the 40° latitude) were tested by skeletochronology. The resting lines (Lag) were seen on the osteoderms of both species. But, Lags in a cross section of caudal vertebra of Anguis fragilis complex were countable whereas the Lags in the cross sections of the osteoderms were couldn't count and can be show differences. For the Pseudopus apodus specimens, when the

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Genetic structuring of Pseudopus apodus (Pallas, 1775) (Sauria: Anguidae) in north Anatolia, Turkey

Cited by 3 publications

References 13 publications

Pleistocene extinctions and recent expansions in an anguid lizard of the genus Pseudopus

Pleistocene extinctions and recent expansions in an anguid lizard of the genus Pseudopus

Phylogenetic relationships and divergence dating in the Glass Lizards (Anguinae)

Türkiye’de Yaşayan Anguid Kertenkelelerdeki Osteodermler ve Arka Bacak Kalıntıları İskelet Kronolojisi Metodunda Kullanılabilir mi?

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