Revisiting the phylogeny of the genus Lolliguncula Steenstrup 1881 improves understanding of their biogeography and proves the validity of Lolliguncula argus Brakoniecki & Roper, 1985.

Autor: Costa TAS; Federal University of Pará, Faculty for Biological Sciences, Alameda Leandro Ribeiro, 68600-000 Bragança, PA, Brazil; Federal University of Pará, Aquatic Molecular Biology Laboratory, Center for Advanced Biodiversity Studies (CEABIO), Av. Perimetral da Ciência, km 01, PCT-Guamá, Lot 11, 66075-750 Belém, PA, Brazil., Sales JBL; Federal University of Pará, Aquatic Molecular Biology Laboratory, Center for Advanced Biodiversity Studies (CEABIO), Av. Perimetral da Ciência, km 01, PCT-Guamá, Lot 11, 66075-750 Belém, PA, Brazil. Electronic address: braullio@ufpa.br., Markaida U; Línea de Pesquerías Artesanales, EL Colegio da la Frontera Sur, Lerma, Campeche, Mexico., Granados-Amores J; Universidad Autónoma de Nayarit-Escuela Nacional de Ingeniería Pesquera, San Blas, Nayarit, Mexico., Gales SM; Federal University of Pará, Aquatic Molecular Biology Laboratory, Center for Advanced Biodiversity Studies (CEABIO), Av. Perimetral da Ciência, km 01, PCT-Guamá, Lot 11, 66075-750 Belém, PA, Brazil., Sampaio I; Federal University of Pará, Faculty for Biological Sciences, Alameda Leandro Ribeiro, 68600-000 Bragança, PA, Brazil., Vallinoto M; Federal University of Pará, Faculty for Biological Sciences, Alameda Leandro Ribeiro, 68600-000 Bragança, PA, Brazil., Rodrigues-Filho LFS; Federal Rural University of Amazônia, Capanema Campus, 68600-030 Capanema, PA, Brazil., Ready JS; Federal University of Pará, Aquatic Molecular Biology Laboratory, Center for Advanced Biodiversity Studies (CEABIO), Av. Perimetral da Ciência, km 01, PCT-Guamá, Lot 11, 66075-750 Belém, PA, Brazil.
Jazyk: angličtina
Zdroj: Molecular phylogenetics and evolution [Mol Phylogenet Evol] 2021 Jan; Vol. 154, pp. 106968. Date of Electronic Publication: 2020 Oct 06.
DOI: 10.1016/j.ympev.2020.106968
Abstrakt: The biogeography of American loliginid squids has been improved in recent years, but certain key taxa have been missing. Given that the most accurate phylogenies and estimates of divergence times of common ancestors depend heavily on good taxonomic coverage we have reanalyzed the genus Lolliguncula in light of new samples that increase the geographic and taxonomic coverage. New sequences were produced using standard methods to update an existing dataset for COI, 16S and Rhodopsin markers. Data was analyzed using various species delimitation methods, rigorous phylogenetic analyses and estimates of divergence times between clades. Within Lolliguncula we recover five monophyletic lineages that relate to the known species L. argus, L. diomedeae, L. panamensis, L. brevis North Atlantic and L. brevis South Atlantic. Except when using low divergence thresholds in ABGD, species delimitation methods only identify four of these lineages as distinct species, grouping L. argus and L. diomedeae as a single species. However, considering the reciprocal monophyly, recent divergence time estimate and morphological diagnoses we refrain from synonymizing L. argus within L. diomedeae, considering them very recently diverged species. The biogeography of the American loliginids is discussed, wherein basal cladogenesis in both Lolliguncula and Doryteuthis occur between the Atlantic and Pacific about 45 mya, with subsequent speciation around 20 mya associated with seafloor changes during the formation of the Caribbean. The recent speciation between L. argus and L. diomedeae is associated to oceanic environmental changes associated with glaciation, deep sea cooling and tropical upwelling.
(Copyright © 2020 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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