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Chromosome banding in Amphibia. XXX. Karyotype aberrations in cultured fibroblast cells

Cytogenetic and genome research, 2004, Vol.104 (1-4), p.277-282 [Peer Reviewed Journal]

Copyright 2003 S. Karger AG, Basel ;ISSN: 1424-8581 ;EISSN: 1424-859X ;DOI: 10.1159/000077502 ;PMID: 15162051

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Title:
Chromosome banding in Amphibia. XXX. Karyotype aberrations in cultured fibroblast cells
Author: Schmid, M ; Steinlein, C ; Haaf, T
Subjects: Amphibia ; Animals ; Anura - genetics ; Bufo rubropunctatus ; Bufonidae - genetics ; Cells, Cultured - ultrastructure ; Chromosome Aberrations ; Chromosome Banding - methods ; Chromosome Banding - veterinary ; Chromosome Breakage ; Fibroblasts - ultrastructure ; Freshwater ; Gastrotheca riobambae ; Karyotyping ; Kidney - cytology ; Male ; Scaphiopus holbrookii ; Species Specificity
Is Part Of: Cytogenetic and genome research, 2004, Vol.104 (1-4), p.277-282
Description: The present study reports for the first time on the numerical and structural chromosome anomalies that spontaneously arise in aging cultured fibroblast cells of Amphibia. The analyses were conducted on kidney fibroblasts of three anuran species with extremely divergent genome sizes (Bufo rubropunctatus, Scaphiopus holbrooki, Gastrotheca riobambae), in the sixth up to the 14th culture passage. The chromosomal rearrangements were identified by means of the 5-bromodeoxyuridine/deoxythymidine (BrdU/dT) replication banding technique. The aberrations can be either confined to a single chromosome, or else involve all chromosomes of the karyotype. The most frequent structural aberrations in the cell cultures of S. holbrooki and G. riobambae are tandem fusions between two or more chromosomes. These tandem fusions originating in vitro in long-termed cell cultures reflect the chromosome mutations which also took place during amphibian phylogenesis.
Publisher: Switzerland: S. Karger AG
Language: English
Identifier: ISSN: 1424-8581
EISSN: 1424-859X
DOI: 10.1159/000077502
PMID: 15162051
Source: MEDLINE
ProQuest Central

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