First Report of a Natural Hybrid Between Schistosoma mansoni and S. rodhaini

@inproceedings{Morgan2003FirstRO,
  title={First Report of a Natural Hybrid Between Schistosoma mansoni and S. rodhaini},
  author={Jess A T Morgan and Randall J. DeJong and Nicholas J. S. Lwambo and Ben N. Mungai and Gerald M. Mkoji and Eric S. Loker},
  booktitle={The Journal of parasitology},
  year={2003}
}
Experimental crosses between Schistosoma mansoni and S. rodhaini have shown that hybrid offspring are viable, yet, until now, no naturally occurring hybrid has been identified. A collection of freshwater snails from Nyamlebi-Ngoma, Ukerewe Island, Lake Victoria, Tanzania, yielded a mixed infection within a single Biomphalaria sudanica of S. mansoni females and S. mansoni–S. rodhaini hybrid males. The hybrids were identified using deoxyribonucleic acid (DNA) sequences. Mitochondrial DNA 16S and… 
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References

SHOWING 1-10 OF 20 REFERENCES
Hybridisation Experiments on Five Species of African Schistosomes
TLDR
There are clear biological differences in definitive and intermediate host specificity and in parasitic site within the host, and these criteria serve to strengthen a classification based on egg morphology.
A check list of definitive hosts exhibiting evidence of the genus Schistosoma Weinland, 1858 acquired naturally in Africa and the Middle East
Le Roux (1958a) proposed division of the Genus Schistosoma into six based on the small number of common generic morphological characteristics and because the Genus was overloaded. It seems that no
Identification of schistosome hybrids and larval parasites using rRNA probes
Observations have been made on the ribosomal RNA (rRNA) gene units of hybrid progeny produced by experimental crosses of S. haematobium × S. mattheei, S. mattheei × S. bovis and S. haematobium × S.
The parasitism of Schistosoma mansoni (Digenea–Trematoda) in a naturally infected population of water rats, Nectomys squamipes (Rodentia–Sigmodontinae) in Brazil
TLDR
The data indicate that N. squamipes can increase transmission of S. mansoni in endemic areas and carry it to non-infected areas and this rodent can be used as an indicator of a transmission focus.
BIPARENTAL MITOCHONDRIAL DNA INHERITANCE IN THE PARASITIC TREMATODE SCHISTOSOMA MANSONI
TLDR
Observations suggest the intraspecific paternal inheritance of mtDNA across multiple generations in Schistosoma mansoni.
Schistosoma mansoni infection in a natural population of olive baboons (Papio cynocephalus anubis) in Gombe Stream National Park, Tanzania
TLDR
The baboon troop with the most contact with people showed highest prevalence of infection possibly due to longer exposure to the parasite than the other troops and/or higher host density and behavioural components of exposure – as measured in water-contact pattern – may be related to parasite burden.
Zoonotic intestinal parasites of hamadryas baboons Papio hamadryas in the western and northern regions of Saudi Arabia.
Six hundred and thirty-three faecal samples were randomly collected and examined for ova and cysts of intestinal parasites from five groups of hamadryas baboons of different population densities,
MITOCHONDRIAL INHERITANCE IN SCHISTOSOMA MANSONI: MITOCHONDRIAL VARIABLE NUMBER TANDEM REPEAT MUTATION PRODUCES NOISE ON TOP OF THE SIGNAL
TLDR
A very high rate of mutation rapidly produces new repeat lengths (new haplotypes) for this mitochondrial variable number tandem repeat, and a maternal inheritance pattern is demonstrated for this repeat sequence, while the high mutation rate causes some offspring to exhibit nonmaternal haplotypes.
Behaviours in trematode cercariae that enhance parasite transmission: patterns and processes.
Cercariae, like miracidia, are non-parasitic larval stages implicated in the life cycle of all trematodes for the host-to-host parasite transmission. Almost all cercariae are free-living in the
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