WoRDSS banner


Deep-Sea source details

Xavier, J.R.; Van Soest, R.W.M.; Breeuwer, J.A.J.; Martins, A.M.F.; Menken, S.B.J. (2010). Phylogeography, genetic diversity and structure of the poecilosclerid sponge Phorbas fictitius at oceanic islands. Contributions to Zoology. 79 (3): 119-129.
147699
Xavier, J.R.; Van Soest, R.W.M.; Breeuwer, J.A.J.; Martins, A.M.F.; Menken, S.B.J.
2010
Phylogeography, genetic diversity and structure of the poecilosclerid sponge <i>Phorbas fictitius</i> at oceanic islands.
Contributions to Zoology
79 (3): 119-129.
Publication
In this study we assessed the sequence variation in the I3-M11 partition of the mtDNA cytochrome c oxidase subunit I gene (COI) in ten populations of the Atlanto-Mediterranean demosponge Phorbas fictitius (Porifera: Poecilosclerida) at two spatial scales: a regional scale comparing mainland (Iberian) and insular (Macaronesian) populations, and a local (Archipelagic) scale focusing on different island populations of the Azores archipelago. A multiple approach combining diversity measures, FST estimates, phylogenetic inference and nested clade phylogeographic analysis was used to assess the genetic structure and elucidate the evolutionary history of this species. Genetic differentiation, based of FST estimates, was found among most populations at both scales revealing highly structured populations. This results of a presumably low dispersal potential and bathymetric range of the species, and the geographical isolation of the studied populations. However we found evidence of long distance dispersal events between some populations. Phylogenetic and network analyses indicate a separation of insular (Macaronesian) and mainland (Iberian) clades with only two haplotypes shared between these areas. The high genetic diversity and prevalence of ancestral haplotypes suggest the Macaronesian islands as the likely place of origin of this species with posterior expansion to mainland locations via current mediated dispersal of larvae or sponge fragments. This study adds to the growing evidence of structured populations in the marine realm and highlights the importance of the Macaronesian on the evolutionary history of the Northeast Atlantic marine biota.
Eastern Atlantic
Biodiversity, Taxonomic and ecological diversity
RIS (EndNote, Reference Manager, ProCite, RefWorks)
BibTex (BibDesk, LaTeX)
Date
action
by
2013-01-12 18:30:12Z
created
db_admin
2018-08-09 11:29:59Z
changed

Azores Canaries Madeira for Phorbas fictitius (Bowerbank, 1866) 
Azores Canaries Madeira for Phorbas fictitius (Bowerbank, 1866) 
Azores Canaries Madeira for Phorbas fictitius (Bowerbank, 1866) 
Azores Canaries Madeira for Phorbas fictitius (Bowerbank, 1866) 
South European Atlantic Shelf for Phorbas fictitius (Bowerbank, 1866) 
South European Atlantic Shelf for Phorbas fictitius (Bowerbank, 1866) 
Western Mediterranean for Phorbas fictitius (Bowerbank, 1866) 
INDEEP logo NHM logo NOC logo Soton logo WoRMS logo OBIS logo Plymouth University's Marine Institute logo
Website hosted & developed by VLIZ · contact: WoRDSS Team