A comparative study of the chromosomes in 5 species of birds from the genus Aratinga (Psittaciformes: Aves).

Lucca, Edmundo José de

doi:10.1508/cytologia.49.537

Cited by 12 publications

(14 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The karyotypes of these two Anodorhynchus species are similar to those described for members of the genera Cyanopsitta, Propyrrhura, Aratinga, Pionites, Pionopsitta, Nandayus and Guaruba, distinguished by a conserved metacentric pair 1, pairs 2, 3, 4, 5, 6 varying from submetacentric to subtelocentric, pairs 7 and 8 varying from metacentric to submetacentric, and pairs 9, 10 and 11 varying from metacentric to telocentric (De Lucca, 1984;Van Dongen and De Boer, 1984;De Lucca et al, 1991;Duarte and Giannoni, 1990;Goldschmidt et al, 1997;Lunardi et al, 2003). The maintenance of the diploid number among these genera and the occurrence of variation of the centromeric position of the macrochromosomes suggests that in this group the main evolutionary mechanisms for karyotypic differentiation were inversions and/or translocations (De Lucca et al, 1991).…”

supporting

confidence: 67%

The karyotype of the critically endangered Lear's macaw, Anodorhynchus leari Bonaparte 1856 (Aves, Psittaciformes)

et al. 2006

View full text Add to dashboard Cite

show abstract

supporting

confidence: 67%

The karyotype of the critically endangered Lear's macaw, Anodorhynchus leari Bonaparte 1856 (Aves, Psittaciformes)

et al. 2006

View full text Add to dashboard Cite

show abstract

“…However, both short-tailed species here studied, P leucogaster and P pileata, presented the karyotypic pattern observed for long-tailed species from Ara, Aratinga, Guaruba, Nandayus, Cyanopsitta and Propyhrrura genera (Lucca 1984, Duarte and Giannoni 1990, Lucca et al 1991, Goldschmidt et al 1997 Jr. in press. ).…”

supporting

confidence: 50%

Chromosomal Evidences of Adaptive Convergence in the Tail Morphology of Neotropical Psittacidae (Aves, Psittaciformes).

2001

View full text Add to dashboard Cite

Summary Behavioral and morphological characters, as well as DNA hybridization and sequencing data strongly suggests that New and Old World Psittacidae evolved independently, supporting the tribe status for the American species (Arini). However, species and genera relationships within this group remain poorly known, and convergence was detected in various morphological characters, which could lead to artificial classifications. Most authors have subdivided Arini tribe in 2 monophyletic groups based on the comparative length of the tail, what is still controversial. In this paper we are describing for the first time the karyotypes of Pionites leucogaster and Pionopsitta pileata, both short-tail species which presented the same karyotypical pattern only previously observed to the long-tail genera. The remarkable karyotypical dichotomy presented by the Neotropical Psittacidae emphasize the existence of 2 distinct monophyletic groups within the Arini tribe. Nevertheless, the karyotypes of P leucogaster and P pileata short-tail species, suggests that the generalization long and short-tail is not valid to represent these both monophyletical groups, and there could occurs convergence in tail morphology character.

show abstract

“…Generally, where structural differences in karyotypes exist between various species of a group it is possible to form hypotheses as to their phylogenetic relationships (Van Dongen and De Boer, 1984). The American parrots is one of the most cytogenetically studied groups of New World birds (Lucca, 1974(Lucca, , 1984(Lucca, , 1985De Boer and Belterman, 1980;Van Dongen and De Boer, 1984;Schmutz and Prus, 1987;Valentine, 1987;Ferrari, 1985, 1990;Duarte and Giannoni, 1990;Lucca et al, 1991;Archangelo et al, 1995;Duarte and Caparroz, 1995;Rocha et al, 1995;Goldschmidt et al, 1997;Francisco et al, 2001;Lunardi et al, 2003), the species so far analyzed exhibiting a heterogeneous karyotypic morphology among some genera in contrast with several other avian groups in which very uniform karyotypes are found. Duarte and Caparroz (1995) showed that the Yellow-faced parrot (Amazona xanthops Spix, 1824), a species endemic to eastern and central Brazil (Forshaw, 1989), exhibited large karyotypic differences not only with the other species of the genus Amazona but also all the other New World parrots that have so far been described, while the morphological analysis conducted by Sick (1984) led him to state that the`inclusion of (A. xanthops) in the Amazona genus may not be correct.…”

Section: Introductionmentioning

confidence: 99%

Chromosomal similarity between the Scaly-headed parrot (Pionus maximiliani), the Short-tailed parrot (Graydidascalus brachyurus) and the Yellow-faced parrot (Salvatoria xanthops) (Psittaciformes: Aves): a cytotaxonomic analysis

Caparroz¹,

Duarte

2004

Genet. Mol. Biol.

View full text Add to dashboard Cite

Behavior, morphology, allozyme studies and DNA hybridization and sequencing data all suggest the independent evolution of the Old and New World parrots and support tribe status for the American species, although the phylogenetic relationships within this tribe are still poorly understood. A previous study has shown that the Yellow-faced parrot (Amazona xanthops Spix, 1824) exhibits large karyotypic differences compared to the other Amazona species and suggested that this species should be renamed Salvatoria xanthops, although the relationships between S. xanthops and the other New World parrots remain unclear. In the present work, we describe the karyotype of the Scaly-headed parrot (Pionus maximiliani Kuhl, 1820) and the karyotype and C-banding pattern of the Short-tailed parrot (Graydidascalus brachyurus Kuhl, 1820) and compare them to the karyotype and C-banding pattern of S. xanthops, as well as to the karyotypes of other New World parrots. The chromosomal similarity between these three species and the karyotypic differences between them and other New World parrots suggest that G. brachyurus and S. xanthops are sister species and are most closely related to members of the genus Pionus.

show abstract

A comparative study of the chromosomes in 5 species of birds from the genus Aratinga (Psittaciformes: Aves).

Cited by 12 publications

References 21 publications

The karyotype of the critically endangered Lear's macaw, Anodorhynchus leari Bonaparte 1856 (Aves, Psittaciformes)

The karyotype of the critically endangered Lear's macaw, Anodorhynchus leari Bonaparte 1856 (Aves, Psittaciformes)

Chromosomal Evidences of Adaptive Convergence in the Tail Morphology of Neotropical Psittacidae (Aves, Psittaciformes).

Chromosomal similarity between the Scaly-headed parrot (Pionus maximiliani), the Short-tailed parrot (Graydidascalus brachyurus) and the Yellow-faced parrot (Salvatoria xanthops) (Psittaciformes: Aves): a cytotaxonomic analysis

Contact Info

Product

Resources

About