Variation in the Nucleolus Organizer Regions (NORs)  in Two Mole Rat Species ( Spalax leucodon and  Spalax ehrenbergi)

Mehmet Doğan GÜLKAÇ

Makale detayları

Variation in the Nucleolus Organizer Regions (NORs) in Two Mole Rat Species ( Spalax leucodon and Spalax ehrenbergi)

Yazarlar:

Mehmet Doğan GÜLKAÇ

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Biology 1999 Vol.23 Issue 2, pp.153-158

Belge Tipi:

Makale

Yayın Tarihi:

1/1999

Belge Dili:

Türkçe

Document ID (Org No.):

2000814282

Sıklık:

İki Aylık

eISSN:

1303-6092

pISSN:

1300-0152

Anahtar kelimeler:

Özet:

 

In this investigation, patterns of variation in the nucleolus organizer regions (NORs) in the  chromosomes of Spalax leucodon and Spalax ehrenbergi were studied. The chromosomal location of  the Ag-NORs was determined in two mole rat species. S. leucodon has 3 pairs of nucleolar  chromosomes, but S. ehrenbergi has only 2 pairs of nucleolar chromosomes in their whole  chromosome sets. In both mole rat species, the chromosomal locations of Ag-NORs were determined  to be on the terminal of the short arms of the subtelocentrics.  The possibilty of Robertsonian translocation and the loss of paracentric NORs in S. ehrenbergi were  discussed from an evolutionary point of view.

 

In this investigation, patterns of variation in the nucleolus organizer regions (NORs) in the  chromosomes of Spalax leucodon and Spalax ehrenbergi were studied. The chromosomal location of  the Ag-NORs was determined in two mole rat species. S. leucodon has 3 pairs of nucleolar  chromosomes, but S. ehrenbergi has only 2 pairs of nucleolar chromosomes in their whole  chromosome sets. In both mole rat species, the chromosomal locations of Ag-NORs were determined  to be on the terminal of the short arms of the subtelocentrics.  The possibilty of Robertsonian translocation and the loss of paracentric NORs in S. ehrenbergi were  discussed from an evolutionary point of view.

Makale detayları

Variation in the Nucleolus Organizer Regions (NORs) in Two Mole Rat Species ( Spalax leucodon and Spalax ehrenbergi)

Yazarlar:

Mehmet Doğan GÜLKAÇ

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Biology 1999 Vol.23 Issue 2, pp.153-158

Belge Tipi:

Makale

Yayın Tarihi:

1/1999

Belge Dili:

Türkçe

Document ID (Org No.):

2000814282

Sıklık:

İki Aylık

eISSN:

1303-6092

pISSN:

1300-0152

Nucleolus organizer regions (NORs)

Spalax leucodon

Spalax ehrenbergi

Sayı

Makale detayları

Variation in the Nucleolus Organizer Regions (NORs) in Two Mole Rat Species ( Spalax leucodon and Spalax ehrenbergi)

Yazarlar: Mehmet Doğan GÜLKAÇ

Yayıncı: TUBITAK

Dergi: Turkish Journal of Biology 1999 Vol.23 Issue 2, pp.153-158

Belge Tipi: Makale

Yayın Tarihi: 1/1999

Belge Dili: Türkçe

Document ID (Org No.): 2000814282

Sıklık: İki Aylık

eISSN: 1303-6092

pISSN: 1300-0152

Nucleolus organizer regions (NORs)

Spalax leucodon

Spalax ehrenbergi

Sayı

Yazarlar:

Mehmet Doğan GÜLKAÇ

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Biology 1999 Vol.23 Issue 2, pp.153-158

Belge Tipi:

Makale

Yayın Tarihi:

1/1999

Belge Dili:

Türkçe

Document ID (Org No.):

2000814282

Sıklık:

İki Aylık

eISSN:

1303-6092

pISSN:

1300-0152