Maintenance of syntenic groups between Cathartidae and Gallus gallus indicates symplesiomorphic karyotypes in new world vultures
Genet. mol. biol
;
34(1): 80-83, 2011. ilus
Article
in English
| LILACS
| ID: lil-573715
ABSTRACT
Similarities between New World and Old World vultures have been interpreted to reflect a close relationship and to suggest the inclusion of both in Accipitridae (Falconiformes). However, deeper analyses indicated that the placement of the New World vultures (cathartids) in this Order is uncertain. Chromosome analysis has shown that cathartids retained a karyotype similar to the putative avian ancestor. In order to verify the occurrence of intrachromosomal rearrangements in cathartids, we hybridized whole chromosome probes of two species (Gallus gallus and Leucopternis albicollis) onto metaphases of Cathartes aura. The results showed that not only were the syntenic groups conserved between Gallus and C. aura, but probably also the general gene order, suggesting that New World vultures share chromosomal symplesiomorphies with most bird lineages.
Full text:
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Index:
LILACS (Americas)
Main subject:
Birds
/
In Situ Hybridization, Fluorescence
/
Karyotyping
Limits:
Animals
Language:
English
Journal:
Genet. mol. biol
Journal subject:
Genetics
Year:
2011
Type:
Article
/
Project document
Affiliation country:
Brazil
/
United kingdom
Institution/Affiliation country:
Cambridge University/GB
/
Universidade Federal do Pará/BR
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