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. 2020 Jul 10;11:721. doi: 10.3389/fgene.2020.00721

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Copyright © 2020 Furo, Kretschmer, O’Brien, Pereira, Garnero, Gunski, O’Connor, Griffin, Gomes, Ferguson-Smith and de Oliveira.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Representation of chromosome organization of four ancestral chromosomes in Psittaciformes, obtained by chromosome painting with G. gallus probes and chicken BACs from microchromosomes. Legend: GGA (Gallus gallus), ARO (Agapornis roseicollis), PER (Psittacus erithacus), MUN (Melopsittacus undulatus), NHO (Nymphicus hollandicus), ACH (Ara chloropterus), AHY (Anodorhynchus hyacinthinus), AMA (Ara macao), PRF (Pyrrhura frontalis), AAE (Amazona aestiva), MMO (Myiopsitta monachus).