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- Title
Karyotypes of the Neotropical pseudoscorpions Semeiochernes armiger and Cordylochernes scorpioides (Pseudoscorpiones: Chernetidae).
- Authors
Št'áhlavsky, František; Zeh, Jeanne A.; Zeh, David W.; Král, Jiři
- Abstract
The karyotypes and course of meiosis of two pseudoscorpions, Semeiochernes armiger (Balzan 1892) and Cordylochernes scorpioides (Linnaeus 1758) (Pseudoscorpiones: Chernetidae), are described for the first time. The diploid chromosome number of the male is 69 in S. armiger and 47 in C. scorpioides. As in most pseudoscorpions studied to date, autosomes exhibit predominantly biarmed morphology. Both species possess an XO sex chromosome system. In most pseudoscorpions with XO system karyotyped so far, including European chernetids, the X chromosome exhibits metacentric morphology. In contrast, the X chromosome of both neotropical chernetids studied exhibits asymmetric, submetacentric morphology.
- Subjects
KARYOTYPES; PSEUDOSCORPIONS; CHERNETIDAE; ANIMAL morphology; SEX chromosomes; X chromosome
- Publication
Journal of Arachnology, 2009, Vol 37, Issue 3, p287
- ISSN
0161-8202
- Publication type
Article