Journal
INTERNATIONAL JOURNAL FOR PARASITOLOGY
Volume 30, Issue 2, Pages 223-226Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0020-7519(99)00178-2
Keywords
Anisakis; genetic markers; polymerase chain reaction-restriction fragment length polymorphism; ribosomal DNA; species identification
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Polymerase chain reaction-based restriction fragment length polymorphism analysis was performed to establish genetic markers in rDNA, for the identification of the three sibling species of the Anisakis simplex complex and morphologically differentiated Anisakis species, i.e. Anisakis physeteris, Anisakis schupakovi, Anisakis typica and Anisakis ziphidarum. Different restriction patterns were found between A. simplex sensu stricto and Anisakis pegreffii with two of the restriction endonucleases used (HinfI and TaqI), between A. simplex sensu stricto and A. simplex C with one endonuclease (HhaI), and between A. simplex C and. Anisakis pegreffii with three endonucleases (HhaI, HinfI and TaqI), while no Variation in patterns was detected among individuals within each species. The species A. physeteris, A. schupakovi, A. typica and A. ziphidarum were found to be different from each other and different from the three sibling species of the A. simplex complex by distinct fragments using 10-12 of the endonucleases tested. The polymorphisms obtained by restriction fragment length polymorphisms have provided a new set of genetic markers for the accurate identification of sibling species and morphospecies. (C) 2000 Australian Society for Parasitology Inc. Published by Elsevier Science Ltd. All rights reserved.
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