Document Detail

Chromosomal homologies between Cebus and Ateles (primates) based on ZOO-FISH and G-banding comparisons.
MedLine Citation:
PMID:  12210670     Owner:  NLM     Status:  MEDLINE    
ZOO-FISH (Fluorescent "in vitro" hybridization) was used to establish the chromosomal homology between humans (HSA) and Cebus nigrivitatus (CNI) and Ateles belzebuth hybridus (ABH). These two species belong to different New World monkey families (Cebidae and Atelidae, respectively) which differ greatly in chromosome number and in chromosome morphology. The molecular results were followed by a detailed banding analysis. The ancestral karyotype of Cebus was then determined by a comparison of in situ hybridization results, as well as chromosomal morphology and banding in other Platyrrhini species. The karyotypes of the four species belonging to the genus Cebus differ from each other by three inversions and one fusion as well as in the location and amounts of heterochromatin. Results obtained by ZOO-FISH in ABH are in general agreement with previous gene-mapping and in situ hybridization data in Ateles, which show that spider monkeys have highly derived genomes. The chromosomal rearrangements detected between HSA and ABH on a band-to-band basis were 27 fusions/fissions, 12 centromeric shifts, and six pericentric inversions. The ancestral karyotype of Cebus was then compared with that of Ateles. The rearrangements detected were 20 fusions/fissions, nine centromeric shifts, and five inversions. Atelidae species are linked by a fragmentation of chromosome 4 into three segments forming an association of 4/15, while Ateles species are linked by 13 derived associations. The results also helped clarify the content of the ancestral platyrrhine karyotype and the mode of chromosomal evolution in these primates. In particular, associations 2/16 and 5/7 should be included in the ancestral karyotype of New World monkeys.
F García; A Ruiz-Herrera; J Egozcue; M Ponsà; M Garcia
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  American journal of primatology     Volume:  57     ISSN:  0275-2565     ISO Abbreviation:  Am. J. Primatol.     Publication Date:  2002 Aug 
Date Detail:
Created Date:  2002-09-04     Completed Date:  2002-10-01     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8108949     Medline TA:  Am J Primatol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  177-88     Citation Subset:  IM    
Copyright Information:
Copyright 2002 Wiley-Liss, Inc.
Departament de Biologia Cel.lular, Fisiologia i Immunologia, Barcelona, Spain.
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MeSH Terms
Cebidae / genetics*
Cebus / genetics*
Evolution, Molecular*
In Situ Hybridization, Fluorescence
Sequence Homology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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