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Karyotype study on pseudoscorpions of the genus Lasiochernes Beier (Pseudoscorpiones, Chernetidae)

. 2005 ; 53 (1-2) : 69-74.

Language English Country Poland Media print

Document type Journal Article, Research Support, Non-U.S. Gov't

Karyotypes of the genus Lasiochernes (Pseudoscorpiones, Chernetidae) are studied for the first time. The diploid chromosome numbers of males were found to be 2n = 61 in L. pilosus, 2n = 69 in L. siculus and 2n = 73 in L. cretonatus. Karyotypes of all species mainly consist of biarmed chromosomes; the sex chromosome system is XO. Remarkably, the X chromosome displays partial (L. cretonatus), or even total (L. pilosus), negative heteropycnosis during the spermatogonial metaphase.

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