Maintenance of syntenic groups between Cathartidae and Gallus gallus indicates symplesiomorphic karyotypes in new world vultures
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. C...
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2011-01-01
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doaj-1c886aba45dd489d8c0147463867c2912020-11-25T02:32:23ZengSociedade Brasileira de GenéticaGenetics and Molecular Biology1415-47571678-46852011-01-013418083Maintenance of syntenic groups between Cathartidae and Gallus gallus indicates symplesiomorphic karyotypes in new world vulturesMarcella M. TagliariniPatricia C.M. O'BrienMalcolm A. Ferguson-SmithEdivaldo H.C. de OliveiraSimilarities 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000100015CathartesFISHGallusLeucopterniswhole-chromosome probes |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Marcella M. Tagliarini Patricia C.M. O'Brien Malcolm A. Ferguson-Smith Edivaldo H.C. de Oliveira |
spellingShingle |
Marcella M. Tagliarini Patricia C.M. O'Brien Malcolm A. Ferguson-Smith Edivaldo H.C. de Oliveira Maintenance of syntenic groups between Cathartidae and Gallus gallus indicates symplesiomorphic karyotypes in new world vultures Genetics and Molecular Biology Cathartes FISH Gallus Leucopternis whole-chromosome probes |
author_facet |
Marcella M. Tagliarini Patricia C.M. O'Brien Malcolm A. Ferguson-Smith Edivaldo H.C. de Oliveira |
author_sort |
Marcella M. Tagliarini |
title |
Maintenance of syntenic groups between Cathartidae and Gallus gallus indicates symplesiomorphic karyotypes in new world vultures |
title_short |
Maintenance of syntenic groups between Cathartidae and Gallus gallus indicates symplesiomorphic karyotypes in new world vultures |
title_full |
Maintenance of syntenic groups between Cathartidae and Gallus gallus indicates symplesiomorphic karyotypes in new world vultures |
title_fullStr |
Maintenance of syntenic groups between Cathartidae and Gallus gallus indicates symplesiomorphic karyotypes in new world vultures |
title_full_unstemmed |
Maintenance of syntenic groups between Cathartidae and Gallus gallus indicates symplesiomorphic karyotypes in new world vultures |
title_sort |
maintenance of syntenic groups between cathartidae and gallus gallus indicates symplesiomorphic karyotypes in new world vultures |
publisher |
Sociedade Brasileira de Genética |
series |
Genetics and Molecular Biology |
issn |
1415-4757 1678-4685 |
publishDate |
2011-01-01 |
description |
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. |
topic |
Cathartes FISH Gallus Leucopternis whole-chromosome probes |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000100015 |
work_keys_str_mv |
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