Genetic relationships among Anisakis species (Nematoda: Anisakidae) inferred from mitochondrial cox2 sequences, and comparison with allozyme data

The Journal of Parasitology
Alice ValentiniGiuseppe Nascetti

Abstract

The genetic relationships among 9 taxa of Anisakis Dujardin, 1845 (A. simplex (sensu stricto), A. pegreffii, A. simplex C., A. typica, A. ziphidarum, A. physeteris, A. brevispiculata, A. paggiae, and Anisakis sp.) were inferred from sequence analysis (629 bp) of the mitochondrial cox2 gene. Genetic divergence among the considered taxa, estimated by p-distance, ranged from p = 0.055, between sibling species of the A. simplex complex, to p = 0.12, between morphologically differentiated species, i.e., A. ziphidarum and A. typica. The highest level was detected when comparing A. physeteris, A. brevispiculata, and A. paggiae versus A. simplex complex (on average p = 0.13) or versus A. typica (on average p = 0.14). Sequence data from the newly identified Anisakis sp. poorly aligned with other Anisakis species but was most similar to A. ziphidarum (p = 0.08). Phylogenetic analyses based upon Parsimony and Bayesian Inference, as well as phenetic analysis based upon Neighbor-Joining p-distance values, generated similar tree topologies, each well supported at major nodes. All analyses delineated two main claides, the first encompassing A. physeteris, A. brevispiculata, and A. paggiae as a sister group to all the remaining species, and th...Continue Reading

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Citations

Sep 18, 2012·Parasitology Research·I Vardić SmrzlićE Teskeredžić
Dec 20, 2008·The Journal of Parasitology·Agnieszka KijewskaJerzy Rokicki
Apr 30, 2013·Emerging Infectious Diseases·Simonetta MattiucciGiuseppe Nascetti
Mar 4, 2014·Molecular and Cellular Probes·Fiona J BairdAndreas L Lopata
Sep 23, 2014·Parasitology Research·María Carmen RomeroJoaquina Martín-Sánchez
Mar 15, 2011·Parasitology International·Karl Marx A QuiazonKazuo Ogawa
Sep 16, 2009·Experimental Parasitology·Wenzhen FangDamin Luo
Dec 3, 2014·International Journal for Parasitology·Kristina BlažekovićIvona Mladineo
Jun 6, 2016·Journal of Microbiological Methods·Y SeesaoC Audebert
Jul 11, 2016·Parasitology International·Serena CavalleroStefano D'Amelio
Aug 5, 2016·International Journal of Food Microbiology·Michelle Cristie Gonçalves da FonsecaSérgio Carmona de São Clemente
Jan 28, 2017·Molecular and Biochemical Parasitology·Ivona MladineoIvana Radonić

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Datasets Mentioned

BETA
X54253
AF179905

Methods Mentioned

BETA
electrophoresis
PCR

Software Mentioned

Modeltest
MEGA
BioEdit
PAUP
MrBayes
ClustalW

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