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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
An approach to revealing blood fluke life cycles, taxonomy, and diversity: Provision of key reference data including DNA sequence from single life cycle stages
Journal of Parasitology, Volume 92, No. 1, Year 2006
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Description
Revealing diversity among extant blood flukes, and the patterns of relationships among them, has been hindered by the difficulty of determining if specimens described from different life cycle stages, hosts, geographic localities, and times represent the same or different species. Persistent collection of all available life cycle stages and provision of exact collection localities, host identification, reference DNA sequences for the parasite, and voucher specimens eventually will provide the framework needed to piece together individual life cycles and facilitate reconciliation with classical taxonomic descriptions, including those based on single life cycle stages. It also provides a means to document unique or rare species that might only ever be recovered from a single life cycle stage. With an emphasis on the value of new information from field collections of any available life cycle stages, here we provide data for several blood fluke cercariae from freshwater snails from Kenya, Uganda, and Australia. Similar data are provided for adult worms of Macrobilharzia macrobilharzia and miracidia of Bivitellobilharzia nairi. Some schistosome and sanguinicolid cercariae that we recovered have peculiar morphological features, and our phylogenetic analyses (18S and 28S rDNA and mtDNA CO1) suggest that 2 of the new schistosome specimens likely represent previously unknown lineages. Our results also provide new insights into 2 of the 4 remaining schistosome genera yet to be extensively characterized with respect to their position in molecular phylogenies, Macrobilharua and Bivitellobilharzia. The accessibility of each life cycle stage is likely to vary dramatically from one parasite species to the next, and our examples validate the potential usefulness of information gleaned from even one such stage, whatever it might be. © American Society of Parasitologists 2006.
Authors & Co-Authors
Brant, Sara Vanessa
United States, Albuquerque
The University of new Mexico
Morgan, Jess A.T.
United States, Albuquerque
The University of new Mexico
Australia, Brisbane
Queensland Department of Agriculture and Fisheries
Mkoji, Gerald M.
United States, Albuquerque
The University of new Mexico
Kenya, Nairobi
Kenya Medical Research Institute
Snyder, Scott D.
United States, Albuquerque
The University of new Mexico
United States, Omaha
University of Nebraska Omaha
Rajapakse, R. P.V.Jayanthe
United States, Albuquerque
The University of new Mexico
Sri Lanka, Peradeniya
University of Peradeniya
Loker, Eric Samuel
United States, Albuquerque
The University of new Mexico
Statistics
Citations: 86
Authors: 6
Affiliations: 5
Identifiers
Doi:
10.1645/GE-3515.1
ISSN:
00223395
Research Areas
Cancer
Genetics And Genomics
Study Locations
Kenya
Uganda