Comparison of the chromosome banding patterns in Dryomys lanigerand D. nitedula from Turkey

Comparison of the chromosome banding patterns in Dryomys lanigerand D. nitedula from Turkey

The karyotypes of Dryomys laniger and D. nitedula from Turkey were studied using C-banding and AgNOR staining. The standard karyotypes found in both species were fairly similar to previously published data (2n = 46, NF = 92 in D. laniger; 2n = 48, NF = 96 in D. nitedula). The C-banding pattern revealed a relatively small amount of heterochromatin in both karyotypes and C-heterochromatin was concentrated at centromeric areas of most autosomes and the X chromosome. Heterochromatin changes have apparently not been responsible for karyotypic divergences between the studied species. The AgNORs were recorded in the pericentromeric region of two autosome pairs in the complement of D. laniger, and at a single autosome pair of D. nitedula. The complement of D. laniger could be derived from that of D. nitedula after a tandem fusion of two autosomal pairs, and the assumed rearrangement also included the NOR region.

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  • Arslan A, Zima J (2014). Karyotypes of the mammals of Turkey and neighbouring regions: a review.Folia Zool 63: 1–62.
  • Arslan A, Zima J, Yorulmaz T, Gözütok S, Toyran K (2013). Chromosome banding pattern in fat dormouse and bank vole (Mammalia: Rodentia) from Turkey. Folia Biol (Kraków) 61: 47–51.
  • Civitelli MV, Filippucci MG, Kurtonur C, Özkan B (1995). Chromosome analysis of three species of Myoxidae. Hystrix 6: 117–126.
  • Doğramacı S, Kefelioğlu H (1990). The karyotype of Dryomys nitedula (Mammalia: Rodentia) from Turkey. Turk J Zool 14: 316–328 (in Turkish with English summary).
  • Doğramacı S, Kefelioğlu H (1992). The karyotype of Muscardinus avellanarius (Mammalia: Rodentia) from Turkey. Turk J Zool 16: 43–49(in Turkish with English summary).
  • Doğramacı S, Tez C (1991). Geographic variations and karyological characteristics of the species Glis glis (Mammalia: Rodentia) in Turkey. Turk J Zool 15: 275–288(in Turkish and English summary).
  • Filippucci MG, Civitelli MV, Capanna E (1985). Le caryotype du lérotin, Dryomys nitedula (Pallas) (Rodentia, Gliridae). Mammalia 19: 365–368 (in French).
  • Ford CE, Hamerton JL (1956). ‘A colchicine-hypotonic-citrate’ squash sequence for mammalian chromosomes. Stain Technol 31: 247–251.
  • Graphodatsky A S, Fokin IM (1993). Comparative cytogenetics of Gliridae (Rodentia). Zool Zh 72: 104–113 (in Russian with English summary).
  • Holden ME (2005). Family Gliridae. In: Wilson DE, Reeder DAM, editors. Mammal Species of the World. A Taxonomic and Geographic Reference. Vol. 2. 3rd ed. Baltimore, MD, USA: John Hopkins University Press, pp. 819–841.
  • Howell WM, Black DA (1980). Controlled silver staining of nucleolus organizer regions with a protective colloidal developer: a 1-step method. Experientia 36: 1014–1015.
  • Hsu TC, Benirschke K (1967-1977). An Atlas of Mammalian Chromosomes. Vols. 1–10. Berlin, Germany: Springer-Verlag.
  • Kıvanç E, Sözen M, Çolak E, Yiğit N (1997). Karyological and phallic characteristics of Dryomys laniger Felten et Storch, 1968 (Rodentia: Gliridae) in Turkey. Israel J Zool 43: 401–403.
  • Kryštufek B, Vohralík V (2005). Mammals of Turkey and Cyprus. Rodentia I. Sciuridae, Dipodidae, Gliridae, Arvicolinae. Koper, Slovenia: Knjižnica Annales Majora.
  • Mitsainas GP, Rovatsos MT, Karamariti I, Giagia-Athanasopoulou E (2008). Chromosomal studies on Greek populations of four small rodent species. Folia Zool 57: 337–346.
  • Şekeroğlu V, Kefelioğlu H, Şekeroğlu ZA (2011). G- and C-banded karyotype of hazel dormouse, Muscardinus avellanarius trapezius (Mammalia: Rodentia) in Turkey. Turk J Zool 35: 375–379.Şekeroğlu V,
  • Şekeroğlu ZA (2011). A chromosomal study of two dormouse species from Turkey. Hystrix 22: 301–309.
  • Sumner AT (1972). A simple technique for demonstrating centromeric heterochromatin. Exp Cell Res 75: 304–306.
  • Yiğit N, Çolak E, Sözen M, Karataş A (2006). Rodents of Türkiye. Ankara, Turkey: Meteksan.
  • Zima J (2000). Chromosomal evolution in small mammals (Insectivora, Chiroptera, Rodentia). Hystrix 11: 3–13.
  • Zima J, Král B (1984). Karyotypes of European mammals II. Acta Sc Nat Brno 18: 1–62.
  • Zima J, Macholán M, Filippucci MG (1995). Chromosomal variation and systematics of glirids. Hystrix 6: 73–86.