The first chromosome study of the genera Calchas Birula, 1899 and Neocalchas Yağmur, Soleglad, Fet & Kovařík, 2013 (Scorpiones: Iuridae)

The first chromosome study of the genera Calchas Birula, 1899 and Neocalchas Yağmur, Soleglad, Fet & Kovařík, 2013 (Scorpiones: Iuridae)

The chromosomes of two species belonging to the scorpion family Iuridae are studied for the first time. Both analysed species displayed achiasmatic meiosis and no morphologically differentiated sex chromosomes; these features are typical for all scorpions. Both species possessed monocentric chromoso...

Full description

Saved in:
Bibliographic Details
Published in:Zoology in the Middle East Vol. 69; no. 1; pp. 66 - 72
Main Authors: Aydın Yağmur, Ersen, Koç, Halil, Yeşílyurt, Fatih, Šťáhlavský, František
Format: Journal Article
Language:English
Published: Taylor & Francis 02-01-2023
Subjects:
Calchinae
FISH
karyotype
karyotype evolution
Turkey
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The chromosomes of two species belonging to the scorpion family Iuridae are studied for the first time. Both analysed species displayed achiasmatic meiosis and no morphologically differentiated sex chromosomes; these features are typical for all scorpions. Both species possessed monocentric chromosomes, a characteristic specific to the entire parvorder Iurida. The karyotype of Calchas nordmanni Birula, 1899 is composed of 82 chromosomes, and the diploid number of chromosomes in Neocalchas gruberi is 40. Despite this conspicuous difference in 2n chromosome morphology is mainly acrocentric. Both species possess two pairs of the 18S rDNA clusters identified by FISH. A higher number of rDNA loci may represent an ancestral state for the parvorder Iurida.
ISSN:0939-7140
2326-2680
DOI:10.1080/09397140.2023.2172838