Karyotype features based on diploid number and sex chromosome system of Steatoda grossa (Araneae: Theridiidae) from Turkey

Yıl 2019, , 1110 - 1114, 01.12.2019

Zübeyde Kumbıçak

https://doi.org/10.16984/saufenbilder.491049

Öz

In
this study, karyotypic investigation of Steatoda
grossa belonging to the family, Theridiidae was carried out to contribute
cytogenetic relationships of the family. A standard air-drying method was used
to obtain chromosome slides including three main steps as hypotonisation,
fixation and staining. As a result, the diploid number and sex chromosome
system was determined as 2n♂=22 (X₁X₂). All chromosomes
were telocentric and gradually decreased in size. Sex chromosomes were
positively heteropycnotic in the stages of meiosis I, and isopycnotic in
meiosis II. The results showed the similarity with the previous investigations
obtained from different populations. 

Anahtar Kelimeler

Araneae, cytogenetics, karyotype, Steatoda

Kaynakça

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