Short CommunicationNew insights into telomeric DNA sequence (TTAGGG)n location in bat chromosomes

Autor: K. C. Faria, S. R C Marchesin, Mateus R. Beguelini, Eliana Morielle-Versute, P. R L Moreira
Rok vydání: 2009
Předmět:
Zdroj: Genetics and Molecular Research. 8:1079-1084
ISSN: 1676-5680
Popis: Molossidae species, Cynomops abrasus (2n = 34, fun- damental number, FN = 64), Eumops auripendulus (2n = 42, FN = 62), Molossus rufus (2n = 48, FN = 64), Molossops temminckii (2n = 48, FN = 64), and Nyctinomops laticaudatus (2n = 48, FN = 64), and Phyl- lostomidae species, Phyllostomus discolor (2n = 32, FN = 60), have karyotypes with different chromosome and fundamental numbers, dif- ferent localization of constitutive heterochromatin, and different num- bers and location of nucleolar organizer regions (NORs). Fluorescence in situ hybridization with a human probe of the telomeric sequence (TTAGGG) n produced fluorescent signals in telomeric regions of the six bat species' chromosomes; in E. auripendulus, pericentromeric signals were also observed in the acrocentric and subtelocentric chro- mosomes. A relationship between telomeric sequences and NORs, and
Databáze: OpenAIRE