Table of Contents
Genes, Volume 9, Issue 10 (October 2018)
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Cover Story (view full-size image) Neotropical parrots and macaws, famous for their vibrant colors and vocal communication skills, are [...] Read more. Neotropical parrots and macaws, famous for their vibrant colors and vocal communication skills, are included in the tribe Arini. Their classification in two groups - long or short-tailed species – was initially supported by some molecular, behavioral, and classical karyotypical studies. However, more recent studies have not agreed with this division. Hence, in order to investigate the validity of long/short tail dichotomy, we performed chromosome painting with chicken and white hawk probes. We found informative chromosomal synapomorphies, which suggest that the tail length-based groups do not reflect the actual phylogeny of Arini. Among the analyzed species, Amazona aestiva retained a higher number of plesiomorphic traits, and a basal position. The fission of ancestral pair 1 and fusion/inversion of pairs 6 and 7 would be features present in the putative Arini ancestral karyotype. View this paper.