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Öğe C-banded karyotype and NORs of the long-eared hedgehog, Hemiechinus auritus from Turkey(INST VERTEBRATE BIOLOGY AS CR, 2009) Arslan, Atilla; Albayrak, Irfan; Pamukoglu, Nahit; Yorulmaz, Tarkan; Toyran, KubilayThe karyotype, C-banding, and nucleolar organizer regions (NORs) of six specimens of Hemiechinus auritus from Turkey were examined. The diploid number of chromosomes was 2n = 48, the fundamental number of chromosome arms FN = 96, and the number of autosomal arms FNa = 92. Most of the chromosomes possessed centromeric constitutive heterochromatin, except of the pairs nos. 4, 6, 7, 8, 9, 12. and 17. The X and Y chromosomes appeared to be euchromatic. and possible geographic variation in their morphology was indicated in comparison with Previously published data. The NORs were located in the terminal regions of the long arms of four metacentric or submetacentric chromosomes. The localization of the NORs was not associated with C-positive autosomal regions as in hedgehogs of the genus Erinaceus.Öğe C-Banded Karyotype of Myocastor coypus (Molina, 1782) from Turkey (Mammalia: Rodentia)(POLISH ACAD SCIENCES, 2009) Iliker, Ayseguel; Arslan, Atilla; Pamukoglu, Nahit; Albayrak, IrfanThe present study reports the C-band patterns of chromosomes of Myocastor coypus fromTurkey. The karyotype of M. coypus is comprised of (2n) 42 chromosomes. the number of chromosomal arms (FN) was 83 and the number of autosomal arms (FNa) was 80. The X chromosome was a medium-sized metacentric and the Y chromosome was acrocentric and the smallest in the set. Two metacentric chromosomes have secondary constrictions. Most autosomes in this species were centromeric C-positive and some autosomes had telomeric C-bands. The X chromosome has centromeric heterochromatin, while the Y chromosome appeared to be entirely heterochromatic.Öğe Nucleolar organizer regions (NORs) of the spiny mouse, Acomys cilicicus (Mammalia : Rodentia) in Turkey(TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, 2008) Arslan, Atilla; Albayrak, Irfan; Pamukoglu, Nahit; Yorulmaz, TarkanIn this study nucleolus organizer regions (NORs) of Acomys cilicicus were examined. The karyotype of A. cilicicus is composed of 2n = 36. FN = 70, and FNa = 66. Ag-NORs are located on the terminal region of the long arm of chromosome 5 and, as a secondary constriction. on the long arm of chromosome 6 in this species. All the NORs are homomorphic and large-sized.