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Ancyrocephalidae (Monogenea) of Lake Tanganyika: does the Cichlidogyrus parasite fauna of Interochromis loocki (Teleostei, Cichlidae) reflect its host’s phylogenetic affinities? Naturalis
Pariselle, A.; Van Steenberge, M.; Snoeks, J.; Volckaert, F.A.M.; Huyse, T.; Vanhove, M.P.M..
The faunal diversity of Lake Tanganyika, with its fish species flocks and its importance as a cradle and reservoir of ancient fish lineages seeding other radiations, has generated a considerable scientific interest in the fields of evolution and biodiversity. The Tropheini, an endemic Tanganyikan cichlid tribe, fills a peculiar phylogenetic position, being closely related to the haplochromine radiations of Lakes Malawi and Victoria. Several problems remain regarding their genus-level classification. For example, the monotypic genus Interochromis is phylogenetically nested within Petrochromis; its only representative, I. loocki, has often been reclassified. As monogenean flatworms are useful markers for fish phylogeny and taxonomy, the monogenean fauna of...
Tipo: Article / Letter to the editor Palavras-chave: Africa; Dactylogyridea; Petrochromis; Platyhelminthes; Species description; Tropheini; 42.81.
Ano: 2015 URL: http://www.repository.naturalis.nl/record/515971
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Myxiops aphos, new characid genus and species (Characiformes: Characidae) from the rio Lençóis, Bahia, Brazil Neotropical Ichthyology
Zanata,Angela M.; Akama,Alberto.
Myxiops aphos, new genus and species, is described from a river in the eastern portion of Bahia State, Brazil. Myxiops is distinguished from all other characid genera by the combination of the following features: infraorbitals fused in a unique fashion, resulting always in less than six autogenous bones; a single tooth row in the premaxilla; presence of somewhat pedunculate teeth, expanded and compressed distally, with cusps similar in shape and perfectly aligned along distal margin; ventral margin of toothed portion of maxillary curved towards ventral margin of premaxilla and maxillary teeth forming a continuous series with premaxillary teeth; margins of pre- and postzygapophyses with projections anteriorly and posteriorly directed; accumulation of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Freshwater fish; Species description; Chapada Diamantina; Northeastern Brazil.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000200001
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The expansion of Phytophthora clade 8b: three new species associated with winter grown vegetable crops Naturalis
Bertier, L.; Brouwer, H.; Cock, A.W.A.M. de; Cooke, D.E.L.; Olsson, C.H.B.; Höfte, M..
Despite its association with important agricultural crops, Phytophthora clade 8b is a poorly studied group of species. The clade currently consists of three officially described species (Phytophthora porri, P. brassicae and P. primulae) that are host-specific pathogens of leek, cabbages and Primula spp., respectively. However, over the past few decades, several other clade 8b-like Phytophthoras have been found on a variety of different host plants that were all grown at low temperatures in winter seasons. In this study, a collection of 30 of these isolates was subjected to a phylogenetic study using two loci (the rDNA ITS region and the mitochondrial cox1 gene). This analysis revealed a clear clustering of isolates according to their host plants. To verify...
Tipo: Article / Letter to the editor Palavras-chave: Host specificity; Low temperatures; Phylogeny; Phytophthora; Species description; Vegetables.
Ano: 2013 URL: http://www.repository.naturalis.nl/record/532058
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