Number of the records: 1  

Molecular phylogeny of species of Ligophorus (Monogenea: Dactylogyridae) and their affinities within the Dactylogyridae

  1. 1.
    0382161 - BC 2013 RIV NL eng J - Journal Article
    Blasco-Costa, Maria Isabel - Míguez-Lozano, R. - Sarabeev, V. - Balbuena, J. A.
    Molecular phylogeny of species of Ligophorus (Monogenea: Dactylogyridae) and their affinities within the Dactylogyridae.
    Parasitology International. Roč. 61, č. 4 (2012), s. 619-627. ISSN 1383-5769. E-ISSN 1873-0329
    Institutional support: RVO:60077344
    Keywords : 28S ribosomal DNA region * Internal transcribed spacer 1 * Morphology * Molecular systematics * Diversification processes * Mediterranean basin * Ergenstrema * Mugilidae
    Subject RIV: GJ - Animal Vermins ; Diseases, Veterinary Medicine
    Impact factor: 2.302, year: 2012
    http://www.sciencedirect.com/science/article/pii/S138357691200089X

    The taxonomic framework of Ligophorus, monogenean specialists of the gills of grey mullets (Mugilidae), is evaluated and its interspecific relationships are assessed for the first time using molecular data. The position of Ligophorus within the paraphyletic Ancyrocephalinae is re-assessed based on newly sequenced species. Furthermore, the relationship between morphometric and genetic interspecific similarities is evaluated. Partial 28S and complete ITS1 rDNA sequences from representatives of 14 of the 16 nominal species of Ligophorus from the Mediterranean, Black and Azov Seas were analysed together with published sequences of members of the Dactylogyridae. The phylogenetic analyses of the Dactylogyridae (i) confirmed the position of Ligophorus within the marine Ancyrocephalinae; (ii) revealed a sister relationship between Ergenstrema and Ligophorus, whose species are all exclusive parasites of grey mullets; and (iii) substantiated the affinities of Ergenstrema with the marine Ancyrocephalinae. The phylogenetic analysis restricted to Ligophorus confirmed the distinct status of the included species. The ITS1 region provided the highest divergence between species and phylograms with the strongest branch support. Both the 28S and ITS1 phylograms revealed two main clades. One included species from hosts with Mediterranean and NE Atlantic distribution and another was formed by species parasitising several Liza spp., including Lz. haematocheilus from the Northwestern Pacific, and Mugil cephalus, which suggests an origin outside the Mediterranean for the latter clade. The phylogenetic evidence presented herein indicated that a combination of host-switching and lineage duplication events accounted for the diversification of this genus in the Mediterranean basin. The agreement between molecular and morphological interspecific similarities observed in Ligophorus supports the validity of morphometric characters used for species identification.
    Permanent Link: http://hdl.handle.net/11104/0212461

     
     
Number of the records: 1  

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