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- MakaleYalnız künye2026Scopus SJRQ3First molecular data based on the mitochondrial 16S rRNA gene for the endemic harvestman Mediostoma izmiricum Snegovaya, Kurt and Yağmur (Opiliones: Nemastomatidae) from Türkiye, with insights into the phylogenetic relationships of the genus
Kurt, Pınar
Mediostoma izmiricum Snegovaya, Kurt and Yağmur, is a species of the family Nemastomatidae Simon, and is endemic to Türkiye. To date, there is no molecular data available for the 16S rRNA gene region for this species or its genus, which limits our knowledge of its phylogenetic position. The 16S rRNA gene region of this species was analysed for the first time, yielding a sequence length of 465 bp. Bayesian inference (BI) and maximum likelihood (ML) phylogenetic trees were subsequently constructed based on these data, revealing the phylogenetic position of both the species and its genus.
- MakaleYalnız künye2025First evidence of the genetic structure of Neurergus strauchii munzurensis
Bozkurt, Emin; Kurnaz, Muammer; Avci, Aziz; Sahin, Mehmet Kuersat; Üzüm, Nazan; Olgun, Kurtulus
Until 2016, two subspecies of Neurergus strauchii were identified; at this time, one more subspecies was described from Tunceli as N. s. munzurensis. However, this study mainly focused on morphological characters. We aim to test of Neurergus species, including N. s. munzurensis taxa by phylogenetic analysis, using partial base sequences of 12S rRNA and D-loop genes. For this purpose, we reconstructed Bayesian Inference and Maximum Likelihood trees with other Neurergus samples. According to the results, phylogenetic tree topologies demonstrate that N. crocatus was separated from the N. strauchii-N. barani lineage and the N. strauchii group have shown monophyly. Also, N. s. munzurensis showed higher genetic distances with N. barani (1.1%) and N. s. strauchii (0.8%) while genetic distances were only determined as 0.5% within N. barani and N. s. strauchii. N. s. munzurensis was found to be a genetically distinct taxon, following its previous morphological description. This study obtained the first evidence on better explaining the taxonomic status of N. s. munzurensis.
- MakaleYalnız künye2022Scopus SJRQ2Hidden Diversity in a Narrow Valley: Description of New Endemic Palearctic Rock Lizard Darevskia (Squamata: Lacertidae) Species from Northeastern Turkey
Kurnaz, Muammer; Şahin, Mehmet Kürşat; Eroğlu, Ali İhsan
Darevskia is a particularly species-rich radiation of Palearctic rock lizards from the Caucasus region. Thanks to intense systematic and taxonomic research, the knowledge of species-level diversity within this genus has increased over the last quarter century. Here, we described a new species, Darevskia salihae sp. nov. from northeastern Turkey. The new taxon is differentiated from other nearby taxon by the low number of dorsal scales in the middle of the body, the shorter body length, and the absence of blue dots both on the lateral region above the forelimbs and on the margin of the ventral plates. In addition to their morphological differences, the new taxon is phylogenetically different from close groups. It is located in a separate subclade from the rudis-valentini-portschinskii subclade. This distinction is supported by both a high bootstrap value (100) and a high posterior probability value (1.00). These two subclades are separated from each other by a genetic distance of almost 4%. This separation is supported not only genetically and morphologically, but also geographically. Since the habitat of the new taxon is limited to a high mountain and a narrow valley, it does not provide an opportunity for a different Darevskia species to shelter because it creates geographical isolation. However, Darevskia parvula that live closest to the habitat of the new taxon live only at the habitat boundaries and do not enter areas where the new taxon is found. Therefore, it might be possible that while it was separated from the rudis-valentini-portschinskii group during the evolutionary transformation, it remained as a refuge and relict in a narrow area as a result of the collapse of the valleys and the partial uplift of the Kaçkar Mountains.
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İncele - MakaleYalnız künye2021Contribution to the taxonomic knowledge of acanthodactylus (Squamata, lacertidae): Description of a new lacertid lizard species from eastern anatolia, turkey
Kurnaz, Muammer; Şahin, Mehmet Kürşat
Acanthodactylus Wiegmann, 1834 is one of the most diverse and widespread lizard genus in the Palearctic realm. Here, we describe a new species, - Acanthodactylus ilgazi sp. nov. - from the Anatolian Peninsula. This new species ranges approximately 250 km north from the closest population of this genus in Turkey. Compared to other fringe-fingered lizards, the new species is phylogenetically close to A. robustus, A. tristrami and A. orientalis but it has some distinct morphological characteristics: Reddish coloration under the tail, a sharp white or grayish stripe in the middle of the dorsum, and four plates in a row on the 4th finger. Moreover, phylogenetic molecular data, based on cyt b gene fragment, verifies that the new species is phylogenetically a member of the tristrami species group with 13.03%, 17.35% and 20.56 genetic distance respectively from A. orientalis, A. tristrami and A. robustus. Lastly, the known range of this species, located in Yazıhan, Malatya in Eastern Anatolia, is restricted by a dam, thus habitat loss endangers its continuity. Therefore, the conservation status of this species should be assessed immediately.
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