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    Morphological and biometrical comparisons of the baculum in the genus Nannospalax Palmer, 1903 (Rodentia: Spalacidae) from Turkey with consideration of its taxonomic importance
    (TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, 2014) Kankilic, Teoman; Kankilic, Tolga; Seker, Perincek Seckin Ozan; Kivanc, Erkut
    The morphological variability of the baculum (os penis) of 147 adult specimens of species in the genus Nannospalax from 58 localities in Turkey was examined using morphological and numerical taxonomic methods. Significant differences among all of the Turkish species in the genus were determined by morphological and biometrical comparison of the bacula, and the results of this study showed that N. nehringi and N. xanthodon are separate species and that the names are not synonyms. Additionally, because the central Anatolian mole rat populations that were classified by previous studies as members of N. nehringi or N. xanthodon had highly different baculum morphologies, these populations were classified as a different species (N. labaumei) in this study. When compared to the other populations, the central Anatolian populations, which have greater diploid chromosomal sets (2n = 56, 58, 60), had very different baculum morphologies. Whereas individuals of the species N. labaumei had the smallest bacula, the largest baculum occurred in a representative of the species N. leucodon. From this study, the results indicate that 5 different blind mole rat species (N. ehrenbergi, N. leucodon, N. nehringi, N. xanthodon, and N. labaumei) live in Turkey, and in addition to these species, some of the chromosomal races (2n = 36, 40, 52) should be treated as distinct species.
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    Phylogenetic and Phylogeographic Relationships of Populations of Meriones tristrami Thomas, 1892 (Rodentia: Gerbillinae) in Turkey as Inferred from Cytochrome-b and RFLP Analysis
    (Inst Zoology, Bas, 2020) Yigit, Nuri; Colak, Ercument; Markov, Georgi; Yigit, Fulya Saygili; Colak, Reyhan; Cetinturk, Derya; Seker, Perincek Seckin Ozan
    The present study aimed to reveal the relationship between the genetic diversity of Tristram's jird Meriones tristrami subpopulations by using cyt-b sequences, the amplified fragments of cyt-b produced by restriction endonuclease (RFLP; Msp I, Rsa I, Noc I and Hae III were used) and the distribution on the Anatolian Peninsula. Eighteen haplotypes were identified in the subpopulations of this species, with the highest nucleotide diversity in the Central Anatolia. The haplotype diversity was determined to be 0.970 among subpopulations. The fixation index (Fst) and the gene flow parameter (Nm) based on cyt-b sequences showed the effective gene flow between the western and south-eastern subpopulations. Both cyt-b sequences and RFLP analyses produced almost similar topology in the Bayesian and UPGMA trees, indicating a gene flow from subpopulations of the South-east to Central Anatolia and the Western Black Sea coast. The main factor for the genetic diversity is considered to be the intermittent distribution from west to east as a result of the great altitude of the Eastern Anatolian Plateau as well as the sea and lake system fragmenting the territory of Anatolia in the Pliocene - Pleistocene Age.