Název: Analýza karyotypu u vybraných bičovců řádů Amblypygi a Uropygi
Překlad názvu: Karyotype analysis of selected representatives of two pedipalpid orders, Amblypygi and Uropygi
Autoři: Sember, Alexandr ; Král, Jiří (vedoucí práce) ; Ráb, Petr (oponent)
Typ dokumentu: Diplomové práce
Rok: 2010
Jazyk: cze
Abstrakt: Karyotype analysis of selected species from arachnid orders Amblypygi and Uropygi Whip spiders (Amblypygi) and whip scorpions (Uropygi) represent relict arachnid orders which has been found already at Upper Carboniferous strata. Although cytogenetic data from amblypygids and uropygids might be important to reconstruct karyotype evolution of arachnids, cytogenetics of these orders is almost unknown. Presented study is aimed in analysis of karyotype and meiosis in 16 species of Amblypygi and 4 species of Uropygi. Both groups are characterized by considerable range of diploid chromosome numbers (2n = 24 - 86 in Amblypygi and 36 - 66 in Uropygi). Analysed species does not exhibit morfologically differentiated sex chromosomes. Differentiation of sex chromosomes on molecular level was revealed in amblypygid Paraphrynus mexicanus by comparative genome hybridization. Obtained data indicate XY/XX sex chromosome system in this species. Comparison of karyotype data indicates reduction of chromosome numbers during evolution of both orders. In Amblypygi, this reduction was accompanied by increase of number of biarmed chromosomes. This trend is not apparent in Uropygi. Karyotypes of most analysed amblypygids and uropygids are also characterized by low amount of heterochromatin. Most studied species exhibit two pairs...
Klíčová slova: Amblypygi; Arachnida difúzní stádium; chiazma; chromozom; fluorescenční hybridizace in situ; heterochromatin; karyotyp; meióza; nukleolární organizátor; pohlavní chromozomy; Uropygi; Amblypygi; Arachnida; chiasma; chromosome; diffuse stage; fluorescence in situ hybridization; heterochromatin; karyotype; meiosis; nucleolar organizer region; sex chromosomes; Uropygi

Instituce: Fakulty UK (VŠKP) (web)
Informace o dostupnosti dokumentu: Dostupné v digitálním repozitáři UK.
Původní záznam: http://hdl.handle.net/20.500.11956/32174

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-469092


Záznam je zařazen do těchto sbírek:
Školství > Veřejné vysoké školy > Univerzita Karlova > Fakulty UK (VŠKP)
Vysokoškolské kvalifikační práce > Diplomové práce