2020
DOI: 10.1101/2020.10.19.346205
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Metabolic contributions of an alphaproteobacterial endosymbiont in the apicomplexanCardiosporidium cionae

Abstract: Apicomplexa is a diverse protistan phylum composed almost exclusively of metazoan-infecting parasites, including the causative agents of malaria, cryptosporidiosis, and toxoplasmosis. A single apicomplexan genus, Nephromyces, was described in 2010 as a mutualist partner to its tunicate host. Here we present genomic and transcriptomic data from the parasitic sister species to this mutualist, Cardiosporidium cionae, and its associated bacterial endosymbiont. Cardiosporidium cionae and Nephromyces both infect tun… Show more

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“…Genome sequences from "environmental" Rickettsiaceae species (i.e. those from protists, apicomplexans, diplomonads, crustaceans, and insects) have illuminated basal lineages of Rickettsiaceae that are critical for inferring the emergence of genomic traits in Orientia and Rickettsia pathogens 29,[60][61][62][63][64] . Further, phylogenetic analysis of genome sequences from novel genera "Candidatus Sarmatiella" (paramecium symbiont) 65 and "Candidatus Megaira" (symbionts of algae and ciliates) 31,66 indicate Orientia and Rickettsia species are more divergent than previously appreciated.…”
Section: Introductionmentioning
confidence: 99%
“…Genome sequences from "environmental" Rickettsiaceae species (i.e. those from protists, apicomplexans, diplomonads, crustaceans, and insects) have illuminated basal lineages of Rickettsiaceae that are critical for inferring the emergence of genomic traits in Orientia and Rickettsia pathogens 29,[60][61][62][63][64] . Further, phylogenetic analysis of genome sequences from novel genera "Candidatus Sarmatiella" (paramecium symbiont) 65 and "Candidatus Megaira" (symbionts of algae and ciliates) 31,66 indicate Orientia and Rickettsia species are more divergent than previously appreciated.…”
Section: Introductionmentioning
confidence: 99%