Cytotaxonomic Considerations on Neotropical Psittacidae Birds and Description of Three New Karyotypes

Chromosomes obtained from feather tissues of 14 species of Brazilian Psittacidae were analyzed by Giemsa conventional staining and the karyotypes of Ara chloroptera, Propyrrhura maracana and Nandayus nenday are presented for the first time. The remaining species showed no chromosome differences when...

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Bibliographic Details
Published in:Hereditas 2001-01, Vol.134 (3), p.225-228
Main Authors: Francisco, Mercival Roberto, Galetti Jr, Pedro Mangel
Format: Article
Language:English
Subjects:
Animals
Ara chloroptera
Brazil
Chromosomes - ultrastructure
Cytogenetic Analysis
Evolution, Molecular
Feathers
Female
Karyotyping
Male
Metaphase
Mitosis
Nandayus nenday
Propyrrhura maracana
Psittaciformes - classification
Psittaciformes - genetics
Sex Chromosomes - ultrastructure
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Summary:Chromosomes obtained from feather tissues of 14 species of Brazilian Psittacidae were analyzed by Giemsa conventional staining and the karyotypes of Ara chloroptera, Propyrrhura maracana and Nandayus nenday are presented for the first time. The remaining species showed no chromosome differences when compared with previous literature data. Two basic karyotype patterns were observed. A karyotype pattern is mostly characterized by biarmed macrochromosomes, while in the other one most macrochromosomes are telocentrics.
ISSN:0018-0661
1601-5223
DOI:10.1111/j.1601-5223.2001.00225.x