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Plos One : Probing Mixed-genotype Infections II ; High Multiplicity in Natural Infections of the Trypanosomatid, Crithidia Bombi, in Its Host, Bombus Spp, Volume 7

By Hughes, William

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Book Id: WPLBN0003958711
Format Type: PDF eBook :
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Reproduction Date: 2015

Title: Plos One : Probing Mixed-genotype Infections II ; High Multiplicity in Natural Infections of the Trypanosomatid, Crithidia Bombi, in Its Host, Bombus Spp, Volume 7  
Author: Hughes, William
Volume: Volume 7
Language: English
Subject: Journals, Science, Medical Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary)
Historic
Publication Date:
Publisher: Plos

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Hughes, W. (n.d.). Plos One : Probing Mixed-genotype Infections II ; High Multiplicity in Natural Infections of the Trypanosomatid, Crithidia Bombi, in Its Host, Bombus Spp, Volume 7. Retrieved from http://worldebookfair.com/


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Description : Mixed-genotype infections have major consequences for many essential elements of host-parasite interactions. With genetic exchange between co-infecting parasite genotypes increased diversity among parasite offspring and the emergence of novel genotypes from infected hosts is possible. We here investigated mixed- genotype infections using the host, Bombus spp. and its trypanosome parasite Crithidia bombi as our study case. The natural infections of C. bombi were genotyped with a novel method for a representative sample of workers and spring queens in Switzerland. We found that around 60% of all infected hosts showed mixed-genotype infections with an average of 2.4760.22 (S.E.) and 3.6561.02 genotypes per worker or queen, respectively. Queens, however, harboured up to 29 different genotypes. Based on the genotypes of co-infecting strains, these could be putatively assigned to either ‘primary’ and ‘derived’ genotypes - the latter resulting from genetic exchange among the primary genotypes. High genetic relatedness among co-infecting derived but not primary genotypes supported this scenario. Co-infection in queens seems to be a major driver for the diversity of genotypes circulating in host populations.

 

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