A karyological study of four European species of Roncus (Pseudoscorpiones: Neobisiidae)

Title:

A karyological study of four European species of Roncus (Pseudoscorpiones: Neobisiidae)

Creator:

František Šťáhlavský, Christophoryová, Jana, and Henderickx, Hans

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:dceb9db5-6592-481d-a419-7284c89445b5
uuid:dceb9db5-6592-481d-a419-7284c89445b5

Subject:

Zoologie, zoologie, entomologie, Neobisiidae, pseudoscorpion, Roncus, karyotype evolution, sex chromosomes, meiosis, 2, and 59

Type:

article, články, model:article, and TEXT

Description:

We present the results of the first study on the karyotypes of four European species of Roncus: Roncus alpinus L. Koch, 1873, Roncus lubricus L. Koch, 1873, Roncus transsilvanicus Beier, 1928 and Roncus sp. The diploid number was 2n = 23 in Roncus sp., 2n = 43 in R. alpinus and R. transsilvanicus and 2n = 45 in R. lubricus. Telocentric autosomes predominate in species with a high chromosome number and metacentric autosomes in Roncus sp. We assume that the ancestral situation for this genus is a high number of chromosomes. A low number of chromosomes is very likely a consequence of centric fusions, which have possibly played a very important role in karyotype evolution in the genus Roncus. All the species analyzed have the X0 sex chromosome system. The X chromosome is metacentric and is the smallest element in the karyotypes of all the species analyzed., František Šťáhlavský, Jana Christophoryova, Hans Henderickx., and Obsahuje seznam literatury

Language:

English

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Source:

European Journal of Entomology | 2013 Volume:110 | Number:3

Harvested from:

CDK

Metadata only:

false