Recent dispersal and diversification within the clingfish genus Acyrtus (Actinopterygii: Gobiesocidae), with the description of a new western Atlantic species

被引:0
|
作者
Quintao, Thais L. [1 ,2 ]
Gasparini, Joao Luiz [3 ]
Joyeux, Jean-Christophe [2 ]
Rocha, Luiz A. [4 ]
Pinheiro, Hudson T. [4 ,5 ]
机构
[1] Univ Fed Espirito Santo, Dept Ciencias Biol, Programa Posgrad Biol Anim, BR-29075910 Vitoria, ES, Brazil
[2] Univ Fed Espirito Santo, Dept Oceanog Ecol, BR-29075910 Vitoria, ES, Brazil
[3] Univ Fed Rio De Janeiro NUPEM UFRJ, Inst Biodiversidade & Sustentabilidade, Programa Posgrad Ciencias Ambientais & Conservaca, BR-27965045 Macae, RJ, Brazil
[4] Calif Acad Sci, Dept Ichthyol, San Francisco, CA 94118 USA
[5] Univ Sao Paulo, Ctr Biol Marinha, BR-11600000 Sao Sebastiao, SP, Brazil
基金
巴西圣保罗研究基金会;
关键词
Brazilian Province; Endemism; Evolution; Phylogeny; Reef fish;
D O I
10.1590/1982-0224-2021-0137
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
The genus Acyrtus (Gobiesocidae) is represented by four valid species distributed in the western Atlantic, and a recently described fifth species from the eastern Pacific. Here, we describe a new species endemic to Trindade Island, Brazil, and provide the first phylogenetic inference for the genus including all representatives. The new species can be distinguished from all its congeners by meristic and morphometric characters, as well as genetic differences. It presents low genetic diversity and, contrarily to other Trindade Island endemic fishes, shows no evidence of recent population growth. Our phylogeny reveals cryptic species and the paraphyletic nature of Acyrtus, which included Arcos nudus (western Atlantic) in a clade that separated from Arcos erythrops (tropical eastern Pacific) around 20 Mya. The three species found in the Brazilian Province, including one that remains undescribed, form a monophyletic clade which colonized the western South Atlantic around 2.6 Mya. Our study suggests that Arcos nudus should be placed in Acyrtus, and that the relationships among the closely-related Gobiesocidae genera Acyrtus (mostly from the Atlantic Ocean) and Arcos (from the Pacific Ocean) need further investigation.
引用
收藏
页码:1 / 22
页数:22
相关论文
共 50 条
  • [21] Review of the genus Malacoctenus (Actinopterygii: Labrisomidae) from the Southwestern Atlantic, with description of two new species
    Carvalho-Filho, Alfredo
    Sazima, Ivan
    Queiroz Lima, Sergio Maia
    Almeida, Daniel
    Mendes, Liana
    Dias, Ricardo Marques
    Britto, Marcelo R.
    Gasparini, Joao Luiz
    ZOOTAXA, 2020, 4819 (03) : 499 - 520
  • [22] WESTERN ATLANTIC HAGFISHES OF THE GENUS EPTATRETUS (MYXINIDAE) WITH DESCRIPTION OF 2 NEW SPECIES
    FERNHOLM, B
    HUBBS, CL
    FISHERY BULLETIN, 1981, 79 (01): : 69 - 83
  • [23] A new species of the deepwater clingfish genus Kopua (Gobiesociformes: Gobiesocidae) from the East China Sea-an example of antitropicality?
    Moore, Glenn I.
    Hutchins, J. Barry
    Okamoto, Makoto
    ZOOTAXA, 2012, (3380) : 34 - 38
  • [24] New records of the genus Callogorgia (Anthozoa: Octocorallia) in the western Atlantic, including the description of a new species
    Bayer, Frederick M.
    Cairns, Stephen D.
    Cordeiro, Ralf T. S.
    Perez, Carlos D.
    JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM, 2015, 95 (05) : 905 - 911
  • [25] An integrative appraisal of the diversification in the Atlantic forest genus Delomys (Rodentia: Cricetidae: Sigmodontinae) with the description of a new species
    Goncalves, Pablo Rodrigues
    De Oliveira, Joao Alves
    ZOOTAXA, 2014, 3760 (01) : 1 - 38
  • [26] Diversity in the genus Yuzurua (Ceramiales, Rhodophyta), with the description of a new species from the Western South Atlantic
    Brunelli, Beatriz
    Soares, Luanda Pereira
    Cassano, Valeria
    Collado-Vides, Ligia
    Fujii, Mutue T.
    PHYCOLOGIA, 2025, 64 (01) : 31 - 39
  • [27] The genus Ptilanthura in the western Atlantic: Evidence for primary males and description of a new species (Isopoda: Anthuridae)
    Kensley, B
    JOURNAL OF CRUSTACEAN BIOLOGY, 1996, 16 (04) : 763 - 781
  • [28] DESCRIPTION OF A NEW WESTERN ATLANTIC SPECIES OF EULIMETTA (GASTROPODA: EULIMIDAE), PREVIOUSLY A MONOTYPIC GENUS FROM THE EASTERN PACIFIC
    de Souza, Leonardo Santos
    Pimenta, Alexandre Dias
    JOURNAL OF CONCHOLOGY, 2015, 42 : 57 - 62
  • [29] Review of the grunt genus Rhonciscus (Lutjaniformes: Haemulidae) from the Western Atlantic, with the description of a new species from Brazil
    Marceniuk, Alexandre Pires
    Caires, Rodrigo Antunes
    Rotundo, Matheus Marcos
    Gasparini, Joao Luiz
    Brito, Gita Juan Soteroruda
    Castilho, Julia Cristina
    Cerqueira, Najila Nolie Catarine Dantas
    Oliveira, Claudio
    Espindola, Vinicius Correa
    MARINE BIODIVERSITY, 2024, 54 (06)
  • [30] Revision of the genus Parabornia (Bivalvia: Galeommatoidea: Galeommatidae) from the western Atlantic, with description of a new species from Brazil
    Simone, LRL
    JOURNAL OF CONCHOLOGY, 2001, 37 : 159 - 169