MOLECULAR PHYLOGENETICS, A NEW CLASSIFICATION, AND A NEW GENUS OF THE NEOTROPICAL FISH FAMILY ANOSTOMIDAE (TELEOSTEI: CHARACIFORMES)
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We used multilocus sequence data from 97 species (66% taxon coverage) to infer the most comprehensive phylogeny of Anostomidae to date. Methods/Results: Likelihood and Bayesian approaches support the recognition of three subfamilies: Leporellinae with one genus, Anostominae with six genera, and Leporininae with nine genera. We reassign many Leporinus species to a redefined Hypomasticus and allocate Leporinus striatus to a new monotypic genus sister to Abramites and Megaleporinus. These taxonomic changes clarify that section of the anostomid tree and partially solve the longstanding non-monophyly of Leporinus. Though many relationships inferred herein match earlier morphological hypotheses, the subfamily Anostominae appears as the unambiguous sister to Leporellus, not Laemolyta, indicating that the superior mouths of Anostominae and Laemolyta evolved convergently. Several other clades have converged on subterminal or inferior mouths, including lineages within Hypomasticus, Leporellus, Leporinus, and Schizodon. This largest-ever phylogeny for Anostomidae will support further taxonomic research and provide a scaffold for morphological, biogeographic, and evolutionary studies in this transcontinental group of Neotropical fishes." "modalidade" => "Comunicação Oral (CO)" "area_tematica" => "AT 02 - Taxonomia e Sistemática" "palavra_chave" => ", , , , " "idioma" => "Português" "arquivo" => "TRABALHO_CORRECAO_EV205_MD1_ID1367_TB569_25102024113642.pdf" "created_at" => "2025-02-13 11:08:16" "updated_at" => null "ativo" => 1 "autor_nome" => "BRIAN L. SIDLAUSKAS" "autor_nome_curto" => "BRIAN" "autor_email" => "bsidlauskas@tulane.edu" "autor_ies" => "OUTRA / MINHA INSTITUIÇÃO NÃO ESTÁ NA LISTA" "autor_imagem" => "" "edicao_url" => "anais-do-ebi---encontro-brasileiro-de-ictiologia" "edicao_nome" => "Anais do EBI - Encontro Brasileiro de Ictiologia" "edicao_evento" => "XXV ENCONTRO BRASILEIRO DE ICTIOLOGIA" "edicao_ano" => 2025 "edicao_pasta" => "anais/ebi/2025" "edicao_logo" => null "edicao_capa" => "67b49e4d8c758_18022025115053.png" "data_publicacao" => null "edicao_publicada_em" => "2025-02-12 10:36:07" "publicacao_id" => 116 "publicacao_nome" => "Revista EBI" "publicacao_codigo" => "978-65-5222-033-2" "tipo_codigo_id" => 2 "tipo_codigo_nome" => "ISBN" "tipo_publicacao_id" => 1 "tipo_publicacao_nome" => "ANAIS de Evento" ] #original: array:35 [ "id" => 120064 "edicao_id" => 384 "trabalho_id" => 569 "inscrito_id" => 1367 "titulo" => "MOLECULAR PHYLOGENETICS, A NEW CLASSIFICATION, AND A NEW GENUS OF THE NEOTROPICAL FISH FAMILY ANOSTOMIDAE (TELEOSTEI: CHARACIFORMES)" "resumo" => "Introduction/Methods: While the last two decades of research have advanced markedly our understanding of the evolution, diversity, and relationships of the nearly 150 species in the Neotropical freshwater fish family Anostomidae, most phylogenetic studies to date have examined relatively few taxa. We used multilocus sequence data from 97 species (66% taxon coverage) to infer the most comprehensive phylogeny of Anostomidae to date. Methods/Results: Likelihood and Bayesian approaches support the recognition of three subfamilies: Leporellinae with one genus, Anostominae with six genera, and Leporininae with nine genera. We reassign many Leporinus species to a redefined Hypomasticus and allocate Leporinus striatus to a new monotypic genus sister to Abramites and Megaleporinus. These taxonomic changes clarify that section of the anostomid tree and partially solve the longstanding non-monophyly of Leporinus. Though many relationships inferred herein match earlier morphological hypotheses, the subfamily Anostominae appears as the unambiguous sister to Leporellus, not Laemolyta, indicating that the superior mouths of Anostominae and Laemolyta evolved convergently. Several other clades have converged on subterminal or inferior mouths, including lineages within Hypomasticus, Leporellus, Leporinus, and Schizodon. This largest-ever phylogeny for Anostomidae will support further taxonomic research and provide a scaffold for morphological, biogeographic, and evolutionary studies in this transcontinental group of Neotropical fishes." "modalidade" => "Comunicação Oral (CO)" "area_tematica" => "AT 02 - Taxonomia e Sistemática" "palavra_chave" => ", , , , " "idioma" => "Português" "arquivo" => "TRABALHO_CORRECAO_EV205_MD1_ID1367_TB569_25102024113642.pdf" "created_at" => "2025-02-13 11:08:16" "updated_at" => null "ativo" => 1 "autor_nome" => "BRIAN L. 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