Comparative analysis of C-heterochromatin, ribosomal and telomeric DNA markers in chromosomes of Pamphagidae grasshoppers from Morocco
| Autor: | Dragan P. Chobanov, Ilyas Yerkinovich Jetybayev, Olesya Georgievna Buleu, Alexander G. Bugrov |
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| Rok vydání: | 2019 |
| Předmět: |
Insecta
ribosomal DNA repeats lcsh:QH426-470 Arthropoda Heterochromatin Plant Science Biology C-banding FISH Pamphagidae grasshoppers Systematics Centromere Genetics Animalia Pamphagidae Repeated sequence Molecular Biology Ribosomal DNA Evolutionary Biology World Chromosome karyotypes Karyotype Ribosomal RNA lcsh:Genetics telomeric repeats (TTAGG)n Orthoptera Animal Science and Zoology Acridoidea Research Article Biotechnology |
| Zdroj: | Comparative Cytogenetics 13(1): 61-74 Comparative Cytogenetics, Vol 13, Iss 1, Pp 61-74 (2019) Comparative Cytogenetics |
| ISSN: | 1993-078X 1993-0771 |
| Popis: | 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 subfamiliesPamphaginaeandThrinchinae. 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. |
| Databáze: | OpenAIRE |
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