- Turkish Journal of Zoology
- Vol: 37 Issue: 2
- Karyological data and meiosis of Drassyllus praeficus (L. Koch, 1866) (Gnaphosidae) and Thanatus imb...
Karyological data and meiosis of Drassyllus praeficus (L. Koch, 1866) (Gnaphosidae) and Thanatus imbecillus (L. Koch, 1878) (Philodromidae) from Turkey
Authors : Zübeyde Kumbiçak, Ayla Karataş, Ümit Kumbiçak, Osman Seyyar
Pages : 200-204
Doi:10.3906/sag-1209-60
View : 12 | Download : 5
Publication Date : 9999-12-31
Article Type : Makaleler
Abstract :In this study, karyotypic and cytogenetic characteristics of Drassyllus praeficus (L. Koch, 1866) and Thanatus imbecillus (L. Koch, 1878) were investigated for the first time by examining mitotic and meiotic chromosomes obtained from gonad cells. The number and the sex chromosome system of D. praeficus and T. imbecillus males was 2n = 22 (X1X20) and 2n = 28 (X1X20), respectively. D. praeficus had 10 autosomal bivalents and 2 univalent sex chromosomes, and T. imbecillus had 13 autosomal bivalents and 2 univalent sex chromosomes during the first meiotic prophase and metaphase. Both species possessed acrocentric chromosomes in their karyotypes.Keywords : chromosomes, sex chromosome system, Araneae, Karyotype