| genetic evidence for the existence of sibling species within contracaecum rudolphii (hartwich, 1964) and the validity of contracaecum septentrionale (kreis, 1955) (nematoda: anisakidae). | specimens of contracaecum rudolphii sensu lato (s.l.) (nematoda: anisakidae) from phalacrocorax carbo sinensis from northeastern and central italy were characterised genetically and compared with those from phalacrocorax aristotelis from galician coasts, spain (identified as c. rudolphii a by multilocus enzyme electrophoresis) and with specimens of c. septentrionale from alca torda from the galician coasts, spain. the first (its-1) and second (its-2) internal transcribed spacers (its) of ribosom ... | 2005 | 15928905 |
| practical pcr tools for the delineation of contracaecum rudolphii a and contracaecum rudolphii b (ascaridoidea: anisakidae) using genetic markers in nuclear ribosomal dna. | using genetic markers defined previously in the internal transcribed spacers (its-1 and its-2) of nuclear ribosomal dna (rdna), pcr-coupled restriction fragment length polymorphism (pcr-rflp) and specific pcr assays were established for the specific detection of each of two morphologically indistinguishable operational taxonomic units (contracaecum rudolphii a and contracaecum rudolphii b) within contracaecum rudolphii (s.l.) and their differentiation from contracaecum septentrionale, a closely ... | 2007 | 17029878 |
| genetic and morphological evidences for the existence of a new species of contracaecum (nematoda: anisakidae) parasite of phalacrocorax brasilianus (gmelin) from chile and its genetic relationships with congeners from fish-eating birds. | abstract contracaecum australe n. sp. is described from the neotropic cormorant phalacrocorax brasilianus in chile based on morphology and the sequence analyses of multiple loci, i.e., mitochondrial cytochrome oxidase 2, mtdna cox-2 , the small subunit of the mitochondrial ribosomal rna gene, rrns , and the its-1 and its-2 regions of nuclear ribosomal dna. moreover, sequence analysis of the same genes was carried out on the morphospecies contracaecum chubutensis garbin et al. (2008) from phalacr ... | 2011 | 21506861 |
| [contracaecum septentrionale, a new parasite from the cormorant; its life cycle, as well as reports on the development of anisakinae. (contribution to the knowledge of parasitic nematodes xvi.)]. | | 1955 | 13257533 |
| anisakid infection in the european shag phalacrocorax aristotelis aristotelis. | a total of 100 specimens of the european shag phalacrocorax aristotelis aristotelis were examined for anisakid infections in the south-east north atlantic. the taxonomic status of the anisakid nematodes was studied by structural analysis using light and scanning electron microscopy. two species, contracaecum septentrionale and c. rudolphii a (nematoda: ascaridoidea), occurred in the european shag with high values of prevalence and mean intensities of infection. these constitute new host records ... | 2001 | 11551308 |
| sequence variation in four mitochondrial genes among sibling species within contracaecum rudolphii sensu lato. | the present study investigated sequence variability in four mitochondrial dna (mtdna) regions, namely cytochrome c oxidase subunit (cox1), nadh dehydrogenase subunits 1 and 4 (nad1 and nad4), and small subunit of rrna (rrns), among contracaecum rudolphii a, c. rudolphii b, c. rudolphii c and contracaecum septentrionale from different hosts and geographical origins in china, italy, spain and the usa. regions in the cox1, nad1, nad4 and rrns genes (designated pcox1, pnad1, pnad4 and prrns, respect ... | 2013 | 23499764 |