Abstract
The karyotypes and the localization of C-bands, clusters of ribosomal DNA and telomeric repeats of 10 species of the family Pamphagidae from Morocco are described for the first time. The species studied belong to the subfamilies Pamphaginae and Thrinchinae. All species have karyotypes consisting of 19 and 20 acrocentric chromosomes and X0/XX sex chromosome system in males and females, respectively (2n♂=19, NF=19; 2n♀=20, NF=20). Despite the karyotype conservatism, we revealed differences in the location and size of C-heterochromatin blocks and ribosomal DNA clusters. A comparative analysis of these differences shows that karyotype divergences in this group is connected not to structural chromosome rearrangements, but to the evolution of repetitive DNA.
Subject
Genetics,Biotechnology,Animal Science and Zoology,Plant Science
Reference44 articles.
1. Molecular evidence for genetic exchanges among ribosomal genes on nonhomologous chromosomes in man and apes.
2. Karyotypes of the short-horned Orthopteran insects (Orthoptera, Caelifera) from Russia, Kazakhstan, Central Asia, and the Caucasus.;Bugrov;Folia Biologica (Krakow),1996
3. Chromosome numbers and C-banding patterns in some Pamphagidae grasshoppers (Orthoptera, Acrididae) from the Caucasus, Central Asia, and Transbaikalia.;Bugrov;Folia Biologica (Krakow),1997
4. Neo-XY chromosome sex determination in four species of the pamphagid grasshoppers (Orthoptera, Acridoidea, Pamphagidae) from Bulgaria
5. Sex chromosome diversity in Armenian toad grasshoppers (Orthoptera, Acridoidea, Pamphagidae)
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