C-heterochromatin variation in the karyotype reflects species level distinction between Erinaceus roumanicus and E. concolor (Eulipotyphla: Erinaceidae) in Turkey
Küçük Resim Yok
Tarih
2008
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
MAGNOLIA PRESS
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The distributions of C-heterochromatin blocks and nucleolar organizer regions (NORs) were studied in hedgehogs from the European (Thrace) and the Asiatic (Anatolia) parts of Turkey. Karyotypes with 48 chromosomes were found in all the specimens examined. The distribution of large heterochromatic blocks in autosomes was different between samples from Thrace and Anatolia in respect of the presence of a distal block in the autosome no. 15. These two chromosomal types correspond to the karyotypes designated as E II and E I by Mandahl (1978). The comparison with other published data shows that the karyotype E II is found within the range of Erinaceus roumanicus, whereas the karyotype EI occurs within the range of E. concolor. Both the species thus differ consistently in the distribution of C-heterochromatin blocks in their karyotypes. The NORs were found in five autosomal pairs of E. roumanicus, and in four autosomal pairs of E. concolor. The position of NORs in individual autosomal pairs may be variable, and two distinct variants were observed in the samples from northern and central/southern Anatolia, respectively. This variation may reflect the presence of two lineages within E. concolor that were indicated in previous phylogeographic studies.
Açıklama
Anahtar Kelimeler
chromosomes, G-banding, C-banding, NORs, distribution, systematics
Kaynak
ZOOTAXA
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
Sayı
1961
