A Cytogenetic and Morphological Study on Nannospalax ehrenbergi in Adana (Ceyhan) Province

Year 2021, Volume: 8 Issue: 4, 554 - 558, 15.12.2021

Tuncay Tuluk İlkay Civelek , Cihan Düşgün , Teoman Kankılıç

https://doi.org/10.30897/ijegeo.945101

Cited By: 1

Abstract

This study was conducted to explain the karyological analysis and morphological characteristics of blind mole rat samples collected from Ceyhan, Adana in Turkey. The chromosomes of the blind mole rat samples were stained and analysed using conventional methods. The chromosomes were defined according to centromere positions by processing photographs of metaphase cells. The karyotype of Nannospalax ehrenbergi showed 53 chromosomes (2n=53) and fundamental number of chromosomal arms NF=66 and the number of autosomal arms NFa= 62. The karyotype showed a hybrid individual. X and Y chromosomes were determined as metacentric and acrocentric, respectively. The autosomal set had 5 (+1 single homologous) pairs of metacentric/submetacentric and 20 pairs of acrocentric. Morphological studies were carried out on two male Nannospalax ehrenbergi skulls from Adana province. Lengths of three external (height, hindfoot length and weights (gr)) and 24 cranial morphological points on skulls were measured using an electronic caliper. This was the first study in which 2n=53 NF=66 population was determined from Ceyhan. This form was described as a hybrid form. The portion behind the palate (os palatinum) has no a sharply defined styloid process.

Keywords

Nannospalax ehrenbergi, Adana, Ceyhan, Karyotype, Morphology

References

• Arslan, A., Akan, Ş. and Zima, J. (2011). Variation in C-heterochromatin and NOR distribution among chromosomal races of mole rats (Spalacidae) from Central Anatolia, Turkey. Mammalian Biology, 76(1), pp. 28-35.
• Arslan, A., Arısoy, A. and Zima, J. (2013). The chromosome banding pattern in two cytotypes (2n= 36 and 38) of blind mole rats from Turkey (Mammalia: Spalaxidae). Zoology in the Middle East, 59(2), pp. 95-100.
• Coşkun, Y. (2004). A new species of mole rat, Nannospalax munzuri sp. n., and the karyotype of Nannospalax tuncelicus (Coşkun, 1996) (Rodentia: Spalacidae) in eastern Anatolia. Zoology in the Middle East, 33(1), pp. 153-162.
• Coşkun, Y., Ulutürk, S. and Yürümez, G. (2006). Chromosomal diversity in mole-rats of the species Nannospalax ehrenbergi (Rodentia: Spalacidae) from South Anatolia, Turkey. Mammalian Biology, 71(4), pp. 244-250.
• Ford, C. E. and Hamerton, J. L. (1956). A colchicine, hypotonic citrate, squash sequence for mammalian chromosomes. Stain Technology, 31(6), pp. 247-251.
• Guo, Y. T., Zhang, J., Xu, D. M., Tang, L. Z., & Liu, Z. (2021). Phylogenomic relationships and molecular convergences to subterranean life in rodent family Spalacidae. Zoological Research, 42(5), 671.
• Harrison, D. L., Bates, P. J. J. (1991). The Mammals of Arabia. Harrison Zoological Museum
• Ivanitskaya, E., Coskun, Y. and Nevo, E. (1997). Banded karyotypes of mole rats (Spalax, Spalacidae, Rodentia) from Turkey: a comparative analysis. Journal of Zoological Systematics and Evolutionary Research, 35(4), pp. 171-177.
• Kankılıç, T., Arslan, A., Şeker, P. S., Kankılıç, T., Toyran, K. and Zima, J. (2017). A new chromosomal race (2n= 44) of Nannospalax xanthodon from Turkey (Mammalia: Rodentia). Zoology in the Middle East, 63(3), pp. 181-188.
• Kankılıç, T., Kankılıç, T., Seker, P., Çolak, R., Selvi, E. and Çolak, E. (2010). Contributions to the karyology and distribution areas of cytotypes of Nannospalax leucodon (Rodentia: Spalacidae) in Western Anatolia. Acta Zoologica Bulgarica, 62(2), pp. 161-167.
• Keleş, A. İ., Süt, B. B., Kankılıç, T. (2020). Histopathological Analysis of The Eye And Optic Nerve Structure In The Blind Mole Rat. Dicle Tıp Dergisi, 47(3), 638-644.
• Matur, F., çolak, F., Ceylan, T., Sevindik, M. and Sözen, M. (2013). Chromosomal evolution of the genus Nannospalax (Palmer 1903) (Rodentia, Muridae) from Western Turkey. Turkish Journal of Zoology, 37, pp. 470-487.
• Nevo, E., Filippucci, M. G., Redi, C., Simson, S., Heth, G. and Beiles, A. (1995). Karyotype and genetic evolution in speciation of subterranean mole rats of the genus Spalax in Turkey. Biological Journal of the Linnean Society, 54(3), pp. 203-229.
• Savic, I. R. and Nevo, E. (1990). The Spalacidae: evolutionary history, speciation and population biology. Progress in clinical and biological research, 335, pp. 129-153.
• Selvi, E., Kankılıç, T., Şeker, P. S., Çolak, E. (2016). Morphometric analysis of Nannospalax leucodon (Nordmann, 1840) with 2n=60 distributed in Central Anatolia. Communications Faculty of Sciences University of Ankara Series C Biology, 25(1), 33-55
• Sözen, M. (2005). A biological investigation on Turkish Spalax Guldenstaedt, 1770 (Mammalia: Rodentia). Gazi University Journal of Science, 18(2), 167-181.
• Sözen, M., Matur, F., Çolak, E., Ozkurt, Ş. and Karataş, A. (2006). Some karyological records and a new chromosomal form for Spalax (Mammalia: Rodentia) in Turkey. Folia Zoologica Praha, Institute of Vertibrate Biology.
• Szunyoghy, J. (1941). Two new species of mole rats from Asia Minor. Állattani Közlemények, (38), pp. 78-86.
• Topachevskii, W. A. (1969). Fauna of the USSR: mammals: mole rats, spalacidae. Leningrad, USSR: Nauka (English translation: Springfield, VA, USA: US Department of Commerce National Technical Information Service), New Delhi, India: American Publication Company.
• Yüksel, E. (1984). Cytogenetic study in Spalax (Rodentia:Spalacidae) from Turkey. Communications, Serie C.
• Yüksel, E. and Gülkaç, M. D. (1990). The evolution and phylogenetic relationships in some subspecies and chromosomal forms of Spalax leucodon. Turkish Journal of Biology, 14, pp. 59-68.