To be or not to be? What molecules say about Runcina brenkoae Thompson, 1980 (GastropodaHeterobranchia: Runcinida)

  1. Araujo, Ana Karla 1
  2. Pola, Marta 2
  3. Malaquias, Manuel Antonio E. 3
  4. Cervera, Juan Lucas 4
  1. 1 Departamento de Biología, Facultad de Ciencias del Mar y Ambientales, Campus de Excelencia Internacional del Mar (CEIMAR), Universidad de Cádiz
  2. 2 Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid
  3. 3 Section of Taxonomy and Evolution, Department of Natural History, University Museum of Bergen
  4. 4 Departamento de Biología, Facultad de Ciencias del Mar y Ambientales, Campus de Excelencia Internacional del Mar (CEIMAR), Universidad de Cádiz - Instituto Universitario de Investigación Marina (INMAR), Campus de Excelencia Internacional del Mar (CEIMAR), Universidad de Cádiz
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Revista:
Scientia Marina

ISSN: 0214-8358

Año de publicación: 2019

Volumen: 83

Número: 3

Páginas: 223-235

Tipo: Artículo

DOI: 10.3989/SCIMAR.04907.07A DIALNET GOOGLE SCHOLAR lock_openAcceso abierto editor

Otras publicaciones en: Scientia Marina

Resumen

Los runcináceos son pequeñas babosas marinas poco conocidas que habitan en costas rocosas intermareales y submareales poco profundas. Entre las especies europeas, Runcina brenkoae descrita originalmente en el mar Adriático en el Mediterráneo, se describió mostrando una variabilidad cromática que cuestionaba la verdadera identidad de la especie y su distribución geográfica. En este artículo, investigamos el estatus taxonómico de R. brenkoae a partir de especímenes del mar Mediterráneo central y occidental, y del sur de las costas Ibéricas de Portugal y España, siguiendo un enfoque integrador que combina una filogenia molecular multi-locus basada en los marcadores mitocondriales citocromo c oxidasa subunidad I y 16S rRNA, y el gen nuclear histona H3, junto con el estudio de los caracteres morfoanatómicos estudiados mediante microscopía electrónica de barrido. Para ayudar en el proceso de delimitaciones de especies, se emplearon los métodos “Automatic Barcode Gap Discovery” y el “Bayesian Poisson Tree Processes”. Nuestros resultados ponen de manifiesto la existencia de un complejo de tres especies previamente identificadas como R. brenkoae, a saber, dos nuevas especies aquí descritas (R. marcosi n. sp. y R. lusitanica n. sp.) y R. brenkoae propiamente dicha.

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We are grateful to all colleagues who provided specimens and photographs for this study, including Alen Petani, Jakov Prki?, Carles Gali?, Marina Poddubetskaia, Josep Rom? and Jorge Antonio Dom?guez Godino. We thank Bastian Brenzinger and Melanie Mackenzie for lending specimens of the ZSM and Museum Victoria collections, respectively. We also thank Juan Gonz?lez (SC-ICYT, UCA) for assistance with SEM. This study was supported by two research projects, ?La Caleta (C?diz) e intermareales rocosos asociados: Una ventana permanente al conocimiento de la biodiversidad marina? funded by Fundaci?n Biodiversidad of the Ministry for Ecological Transition, and ?Desentra?ando la diversidad criptica en las regiones Lusit?nica y Mediterr?nea: Heterobranquios marinos (Mollusca), S?lidos (Annelida) y Capr?lidos (Arthropoda, Pancrustacea) como casos de estudio? funded by the University of C?diz (PR2018-039) through a grant to J.L. Cervera. A. K. Araujo holds a PhD grant from the Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico ? CNPq/Brazil (Processo 205276/2014-8).

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