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2011•CaryologiaOpen access

Karyotypic studies ofMeriones dahliShidlovsky, 1962 (Rodentia: Muridae) from Turkey

Nursel Aşan Baydemir, Yasi̇n Demirbaş, Nahit Pamukoğlu, İrfan Albayrak, Tuba Yağcı

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Abstract

In this study, conventionally stained, C- and Ag-NOR banded karyotypes of Dahl’s jird, Meriones dahli, were reported from Turkey. The species had a karyotype of 2n = 50, NFa = 74 and NF = 78. The X and Y chromosomes were submetacentrics in all specimens examined. Blocks of constitutive heterochromatin were located in the pericentromeric areas of autosomes including the X and Y chromosomes. Interstitial C- bands are also detected in the long arms of one of the largest acrocentric pairs. Nucleolar organizer regions (NORs) were located at the telomeric regions of the short arms of three submetacentrics and two acrocentrics.

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In this study, conventionally stained, C- and Ag-NOR banded karyotypes of Dahl’s jird, Meriones dahli, were reported from Turkey. The species had a karyotype of 2n = 50, NFa = 74 and NF = 78. The X and Y chromosomes were submetacentrics in all specimens examined. Blocks of constitutive heterochromatin were located in the pericentromeric areas of autosomes including the X and Y chromosomes. Interstitial C- bands are also detected in the long arms of one of the largest acrocentric pairs. Nucleolar organizer regions (NORs) were located at the telomeric regions of the short arms of three submetacentrics and two acrocentrics.

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Available abstract

In this study, conventionally stained, C- and Ag-NOR banded karyotypes of Dahl’s jird, Meriones dahli, were reported from Turkey. The species had a karyotype of 2n = 50, NFa = 74 and NF = 78. The X and Y chromosomes were submetacentrics in all specimens examined. Blocks of constitutive heterochromatin were located in the pericentromeric areas of autosomes including the X and Y chromosomes. Interstitial C- bands are also detected in the long arms of one of the largest acrocentric pairs. Nucleolar organizer regions (NORs) were located at the telomeric regions of the short arms of three submetacentrics and two acrocentrics.

Key concepts: Biology, Karyotype, Muridae, Constitutive heterochromatin, Autosome, Centromere, Nucleolus organizer region, Heterochromatin

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Karyotypic studies ofMeriones dahliShidlovsky, 1962 (Rodentia: Muridae) from Turkey — Research Paper | ScholarLens