Karyotype diversity of pseudoscorpions of the genus Chthonius (Pseudoscorpiones, Chthoniidae) in the Alps
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F16%3A10327697" target="_blank" >RIV/00216208:11310/16:10327697 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.3897/CompCytogen.v10i3.8906" target="_blank" >http://dx.doi.org/10.3897/CompCytogen.v10i3.8906</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3897/CompCytogen.v10i3.8906" target="_blank" >10.3897/CompCytogen.v10i3.8906</a>
Alternative languages
Result language
angličtina
Original language name
Karyotype diversity of pseudoscorpions of the genus Chthonius (Pseudoscorpiones, Chthoniidae) in the Alps
Original language description
Pseudoscorpions are found in almost all terrestrial habitats. However, their uniform appearance presents a challenge for morphology-based taxonomy, which may underestimate the diversity of this order. We performed cytogenetic analyses on 11 pseudoscorpion species of the genus Chthonius C. L. Koch, 1843 from the Alps, including three subgenera: Chthonius (Chthonius) C. L. Koch, 1843, C. (Ephippiochthonius) Beier, 1930 and C. (Globochthonius) Beier, 1931 inhabiting this region. The results show that the male diploid number of chromosomes ranges from 21-35. The sex chromosome system X0 has been detected in all male specimens. The X sex chromosome is always metacentric and represents the largest chromosome in the nucleus. Achiasmatic meiosis, already known from the family Chthoniidae, was further confirmed in males of Chthonius. C-banding corroborated the localization of constitutive heterochromatin in the centromere region, which corresponds to heteropycnotic knobs on the standard chromosome preparations. Morphological types and size differentiation of chromosomes in the karyotype suggest that the main chromosomal rearrangements in the evolution of Chthonius are centric or tandem fusions resulting in a decrease in the number of chromosomes. Pericentric inversions, inducing the change of acrocentric chromosomes into biarmed chromosomes, could also be expected. Variability in chromosome morphology and number was detected in several species: C. (C.) ischnocheles (Hermann, 1804), C. (C.) raridentatus, C. (C.) rhodochelatus Hadzi, 1930, and C. (C.) tenuis L. Koch, 1873. We discuss the intraspecific variability within these species and the potential existence of cryptic species.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EG - Zoology
OECD FORD branch
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Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Comparative Cytogenetics
ISSN
1993-0771
e-ISSN
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Volume of the periodical
10
Issue of the periodical within the volume
3
Country of publishing house
RU - RUSSIAN FEDERATION
Number of pages
21
Pages from-to
325-345
UT code for WoS article
000384011200001
EID of the result in the Scopus database
2-s2.0-84988664751