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Cytotaxonomy of Gallinula melanops (Gruiformes, Rallidae): Karyotype evolution and phylogenetic inference.

Published version
Peer-reviewed

Type

Article

Change log

Authors

Furo, Ivanete de Oliveira  ORCID logo  https://orcid.org/0000-0001-5404-6029
O'Brien, Patricia CM 
Pereira, Jorge Claudio da Costa 
Gunski, Ricardo José  ORCID logo  https://orcid.org/0000-0002-7315-0590

Abstract

Although Rallidae is the most diverse family within Gruiformes, there is little information concerning the karyotype of the species in this group. In fact, Gallinula melanops, a species of Rallidae found in Brazil, is among the few species studied cytogenetically, but only with conventional staining and repetitive DNA mapping, showing 2n=80. Thus, in order to understand the karyotypic evolution and phylogeny of this group, the present study aimed to analyze the karyotype of G. melanops by classical and molecular cytogenetics, comparing the results with other species of Gruiformes. The results show that G. melanops has the same chromosome rearrangements as described in Gallinula chloropus (Clade Fulica), including fission of ancestral chromosomes 4 and 5 of Gallus gallus (GGA), beyond the fusion between two of segments resultants of the GGA4/GGA5, also fusions between the chromosomes GGA6/GGA7. Thus, despite the fact that some authors have suggested the inclusion of G. melanops in genus Porphyriops, our molecular cytogenetic results confirm its place in the Gallinula genus.

Description

Keywords

Birds, Clade Fulica, chromosome painting, chromosome evolution, microchromosomes

Journal Title

Genet Mol Biol

Conference Name

Journal ISSN

1415-4757
1678-4685

Volume Title

44

Publisher

FapUNIFESP (SciELO)