Yazar "Gozutok, Serdar" seçeneğine göre listele
Listeleniyor 1 - 7 / 7
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe C-heterochromatin variation and NOR distribution in the karyotype of water vole, Arvicola terrestris (Mammalia, Rodentia)(Firenze Univ Press, 2011) Arslan, Atilla; Yorulmaz, Tarkan; Toyran, Kubilay; Gozutok, Serdar; Zima, JanA chromosomal study of populations of Arvicola terrestris from Anatolia in Turkey and from Central Europe was performed. The diploid number of 36 chromosomes was found in all the specimens examined. The autosomal complement consisted of 12 meta- and submetacentric pairs, two large or medium-sized subtelocentric pairs, and three small acrocentric (Turkey) or subtelocentric (Central Europe) pairs (FNa = 62-68). The X chromosome was medium-sized submetacentric, the Y chromosome was small acrocentric or subtelocentric. All the chromosomes could be reliably identified by their unique G-banding patterns. The C-banding analysis revealed variation in the amount of constitutive heterochromatin in centromeric regions and in short arms of certain autosomes. A unique feature of the C-banded karyotype of individuals from Anatolia was the absence of dark positive regions in most chromosomes. Populations of water vole from Anatolia resemble in their C-band pattern those studied previously in Azerbaijan, and possibly also in the Balkan peninsula, and they are different in this respect from populations in Central Europe and the other parts of the species range. The X chromosome was stained uniformly and C-negatively in populations from Anatolia, whereas a faint dark centromeric C-band was observed in individuals from Central Europe. The Y chromosome was stained C-positively. The active nucleolar organizer regions (NORs) were localized in one pair of small metacentric and two acrocentric autosome pairs in the karyotype of individuals from Anatolia.Öğe Chromosome Banding Pattern in Fat Dormouse and Bank Vole (Mammalia: Rodentia) from Turkey(Polish Acad Sciences, Inst Systematics Evolution Animals, 2013) Arslan, Atilla; Zima, Jan; Yorulmaz, Tarkan; Gozutok, Serdar; Toyran, KubilayARSLAN A., ZIMA J., YORULMAZ T., GOZUTOK S., TOYRAN K. 2013. Chromosome banding pattern in fat dormouse and bank vole (Mammalia: Rodentia) from Turkey. Folia Biologica (Krakow) 61: 47-51. The chromosome banding pattern (C-banding, AgNOR staining) was studied in isolated populations of two species of rodents from Turkey, Glis glis and Myodes glareolus. A single nucleolar organizer region was localized in an autosomal pair in the complement of G. glis. Centromeric C-heterochromatin blocks and seven pairs of NOR-bearing autosomes were observed in the complement of M glareolus. A metacentric Y chromosome was found in the M glareolus males examined. The detailed structure of karyotypes and the banding patterns differ from some previously published results.Öğe Cytogenetic Study on Microtus guentheri (Danford and Alston, 1880) (Mammalia: Rodentia) from Turkey: Constitutive Heterochromatin Distribution and Nucleolar Organizer Regions(Polish Acad Sciences, Inst Systematics Evolution Animals, 2011) Baydemir, Nurse Asan; Albayrak, Irfan; Gozutok, SerdarConventionally stained, C- and Ag-NOR banded karyotypes of Guenther's vole, Microtus guentheri were studied from Turkey. The species possesses a karyotype of 2n=54, NFa=52 and NF=54 in specimens from Kahramanmaras and Gaziantep provinces, whereas NF=56 in females and NF=55 in males were found in individuals from Kirikkale and Nevsehir provinces. The X chromosome was a large acrocentric (NF=54) or submetacentric (NF=55, 56) while the Y chromosome was a small telocentric in all specimens examined. Blocks of constitutive heterochromatin were located in the pericentromeric areas of autosomes including the X chromosome. Nucleolar organizer regions (NORs) were located at the telomeric regions of the short arms of five acrocentric pairs and centromeric regions of two telocentric pairs in the Nevsehir and Kirikkale specimens.Öğe Distribution of constitutive heterochromatin and nucleolar organizer regions (NORs) in Mustela nivalis Linnaeus, 1766 (Carnivora, Mustelidae) in Turkey(Firenze Univ Press, 2015) Baydemir, Nursel Asan; Demirbas, Yasin; Gozutok, Serdar; Karoz, Ayse MerveC- and Ag-NOR banding of the least weasel, Mustela nivalis, from the central and Mediterranean regions of Turkey was examined for the first time in this study. The chromosome set was composed of 18 biarmed and three acrocentric autosome pairs. The X chromosome was a medium-sized submetacentric, while the Y was a small metacentric. A distinct secondary constriction was observed on the juxta centromeric region of the long arm of an autosome that was negatively C-banded. Large heterochromatic C-blocks, stained densely, were detected in six biarmed pairs, while ones stained faintly were recorded in four biarmed autosome pairs. Active NORs were located in the secondary constriction of the acrocentric autosome. The numbers of C-banded autosomes of Turkish specimens were similar to those reported previously from the Palearctic region.Öğe Karyotypes of three gerbil species of the genera Tatera and Gerbilliscus from Turkey and Senegal(Univ Oradea Publ House, 2013) Arslan, Atilla; Zima, Jan; Koubinova, Darina; Yorulmaz, Tarkan; Toyran, Kubilay; Gozutok, SerdarIn this study, we examined karyotypes of three gerbil species of the genera Tatera add Gerbilliscus. The diploid number of 68 chromosomes was confirmed in all specimens of Tatera indica examined from southeastern Anatolia in Turkey. The C-band positive regions were distributed in centromeris areas of all the autosomal pairs and the X chromosome. The Y chromosome was stained uniformly and C-positively. The active NORs were localind in three out of eight pairs of biarmed autosomes (NF=86). Conventionally stained karyotypes were studied in two species of Gerbilliscus from Senegal, western Africa. The female karyotype of G. gambianus contained 52 chromosomes including one large subtelocentric, six submetacentric and 19 acrocentric pairs (NF=66). The female karyotype of G. guineae contained 50 chromosomes including a large metacentric, eight submetacentric and 16 acrocentric autosomal pairs (NF=68). Minor differences in chromosome morphology were observed in these studied species in comparison with previously published data.Öğe Nucleolar organizer regions (NORs) in Cricetulus migratorius (Pallas, 1773) and Meriones tristrami Thomas, 1892 (Mammalia: Rodentia) from Central Anatolia(Tubitak Scientific & Technical Research Council Turkey, 2010) Asan, Nursel; Albayrak, Irfan; Demirbas, Yasin; Yorulmaz, Tarkan; Toyran, Kubilay; Gozutok, SerdarThe distribution of nucleolar organizer regions (NORs) in Cricetulus migratorius and Meriones tristrami from Central Anatolia was determined. In the karyotype of Cricetulus migratorius the diploid number, fundamental number, and fundamental autosomal number are 22, 44, and 40, respectively. The diploid number, fundamental number, and fundamental autosomal number of Meriones tristrami are 72, 84, and 80, respectively. In Cricetulus migratorius, NORs occur in the telomeric regions of metacentric and subtelocentric autosome pairs. Furthermore, terminally located NORs in metacentric and acrocentric autosomes of Meriones tristrami are presented in this present paper.Öğe A survey study on hantavirus, cowpox virus, and Leptospira infections in Microtus hartingi in Kirsehir Province, Central Anatolia, Turkey(Scientific Technical Research Council Turkey-Tubitak, 2013) Azkur, Ahmet Kursat; Kaygusuz, Sedat; Aslan, Muhammet Eren; Gazyagci, Serkal; Gozutok, Serdar; Toyran, KubilayThe aim of this study was to investigate whether hantaviruses, cowpox viruses, or Leptospira infections were prevalent in Microtus hartingi trapped in Kirsehir Province, located in Central Anatolia, Turkey. Leptospira spp. was detected in 20 of the 43 (46.5%) Microtus hartingi kidney samples and confirmed by nested polymerase chain reaction (PCR) of the 16S ribosomal RNA gene. Five of the 20 Leptospira spp. PCR positive amplicons were sequenced, analyzed, and confirmed as Leptospira spp. This is the first study to genetically characterize Leptospira in Microtus hartingi in Turkey. There was no evidence of cowpox viruses or hantaviruses in Microtus hartingi. Therefore, additional studies are needed.
