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Resurrection of the genus Subulo for the gray brocket deer, with designation of a neotype

2022; Oxford University Press; Volume: 104; Issue: 3 Linguagem: Inglês

10.1093/jmammal/gyac068

1545-1542

Agda Maria Bernegossi, Carolina Heloisa de Souza Borges, Eluzai Dinai Pinto Sandoval, José L. Cartes, Halina Černohorská, Svatava Kubı́čková, Miluše Vozdová, Renato Caparroz, Susana González, José Maurício Barbanti Duarte,

Genetic diversity and population structure

Abstract The gray brocket deer, Mazama gouazoubiraG. Fischer, 1814, occurs in South America and presents an extensive degree of morphological and genetic variability. Previous phylogenetic research showed that the genus Mazama is polyphyletic and imposed the designation of a different genus-group name for M. gouazoubira. We aimed to review and clarify the taxonomy of M. gouazoubira through the proposal of updating the nomenclature for this taxon and by the characterization of specimens collected close to the original type locality (topotypes). The topotypes were characterized by morphological (general characterization and morphometry), cytogenetic (conventional staining, Ag-NOR, G- and C-banding, and fluorescence in situ hybridization), and phylogenetic (mitogenomes) approaches. We revealed chromosome homologies between cattle and M. gouazoubira using an entire set of cattle whole chromosome painting probes and propose an updated G-band idiogram for the species. The morphometric analysis did not discriminate the individuals of M. gouazoubira, including the topotypes, from other small brocket deer species. However, the phylogenetic analysis, based on a Bayesian inference tree of the mitogenomes, confirmed the polyphyly of the genus Mazama and supported the need to change the gray brocket deer genus-group name. Based on our revision, we validated the genus SubuloSmith, 1827, and fixed a type species for the genus. In the absence of the holotype, we denominated a neotype described by the collection of a male topotype in Paraguay. The nomenclature rearrangement presented here is a starting point that will assist in the taxonomic resolution of Neotropical deer.