首页|Almost half of the Gymnura van Hasselt,1823 species are unknown:Phylogeographic inference as scissors for cutting the hidden Gordian knot and clarify their conservation status

Almost half of the Gymnura van Hasselt,1823 species are unknown:Phylogeographic inference as scissors for cutting the hidden Gordian knot and clarify their conservation status

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Gymnurid rays are found in tropical,subtropical,and temperate regions around the world,where they are associated with sandy or muddy bottoms in coastal areas,being easily distinguished from other rays by the width of the disc.In recent years,the systematics of this family have been revised extensively.However,there has been no comprehensive molecular review of the family based on an adequate sample of species and localities,which may have obscured the presence of distinct evolutionary lineages.The present study was based on samples of 12 of the 13 valid species of the genus Gymnura,which were used for a multilocus reconstruction of the evolutionary history of the family Gymnuridae.Our results indicate the existence of several cryptic gymnurid lineages,within the species Gymnura micrura,Gymnura Iessae,Gymnura altavela,and Gymnura poecilura.Also,we indicate that only half of the species that compose the genus are known,as well their conservation status.The analyses also indicate that the gymnurids originated during the Paleocene,with events of dispersal and vicariance occurring through the formation of oceanographic barriers,and species diversification peaking during the Oligocene and Miocene.The results of the present study reinforce the need for a comprehensive revision of the systematics of the family,in particular,the widely distributed species that are considered valid taxa,but may,in fact,represent different cryptic species.The inadequate classification of this cryptic diversity may have negative implications for the development of effective conservation measures.

blue Amazonbutterfly rayscryptic speciationevolutionary history

Suellen M.Gales、Kristene T.Parsons、Ellen E.Biesack、Jonathan Ready、Raquel Siccha-Ramirez、Leonardo C.Rosa、Ricardo Rosa、Matheus M.Rotundo、Roger Bills、Alan Erik S.Rodrigues、Luis Fernando S.Rodrigues-Filho、Jan McDowell、Jo?o Bráullio L.Sales

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Biological Institute of Sciences,Laboratory of Aquatic Molecular Biology,Center for Advanced Biodiversity Studies(CEABIO),Federal University of Pará,Av.Perimetral da Ciência,km 01,PCT-Guamá,Lot 11,Belém 66075-750,PA,Brazil

Florida Fish and Wildlife Conservation Commission,Fish and Wildlife Research Institute,2796 Overseas Highway,Marathon 33050,FL,USA

Virginia Institute of Marine Science,College of William and Mary,Gloucester Point 23062,VA,USA

Laboratorio de Genómica y bioinformática para la biodiversidad,Facultad de Ciencias Biológicas,Universidad Nacional Mayor de San Marcos,Lima,Perú

Department of Fishery Engineering and Aquaculture(DEPAq),Laboratory of Benthic Ecology,Center for Applied Agrarian Sciences(CCAA),Federal University of Sergipe,São Cristovão,SE,Brazil

Department of Systematics and Ecology,CCEN,Federal University of Paraíba,João Pessoa 58051-900,PB,Brazil

Zoological Collection at Santa Cecília University(AZUSC),Graduate and postgraduate in Marine Biology(Biodiversity),Santa Cecília University,258 Oswaldo Cruz Street,Boqueirão,Santos ZIP 11045-307,SP,Brazil

South African Institute for Aquatic Biodiversity,Grahamstown 6140,South Africa

Department of Biological Science,Federal Rural University of Amazônia,Graduate Course in Biological Sciences,Capanema Campus,Capanema ZIP 68600-030,PA,Brazil

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Instituto de Ciências Biológicas from UFPA for an undergraduate student stipend associatedBrazilian Coordination of Higher Education Personnel Training(CAPES)through scholarships in the UFPA Postgraduate Program inShark Conservation Fund(SCF)for funding the projectMuseum of Comparative Zoology and the Ernst Mayr Travel Grant in Animal Systematics(Harvard University)(2015)

324-1019-ICB

2024

10.1111/jse.13027

植物分类学报
中国科学院植物研究所　中国植物学会

植物分类学报

CSTPCD
影响因子：0.322
ISSN：1674-4918
年,卷(期)：2024.62(4)