Phylogenetic analysis of coccidian parasites from invertebrates: search for missing links

Protist
Jana KopecnáDavid Modrý

Abstract

Apicomplexan parasites represent one of the most important groups of parasitic unicellular eukaryotes comprising such important human parasites such as Plasmodium spp. and Toxoplasma gondii. Apicomplexan radiation as well as their adaptation to the parasitic style of life took place before the era of vertebrates. Thus, invertebrates were the first hosts of apicomplexan parasites that switched to vertebrates later in evolution. Despite this fact, apicomplexan parasites of invertebrates, with the exception of gregarines, have so far been ignored in phylogenetic studies. To address this issue, we sequenced the nuclear SSU rRNA genes from the homoxenous apicomplexan parasites of insects Adelina grylli and Adelina dimidiata, and the heteroxenous Aggregata octopiana and Aggregata eberthii that are transmitted between cephalopods and crustaceans, and used them for phylogenetic reconstructions. The position of the adelinids as a sister group to Hepatozoon spp. within the suborder Adeleorina was stable regardless of the phylogenetic method used. In contrast, both members of the genus Aggregata possess highly divergent SSU rRNA genes with an unusual nucleotide composition. Because of this, they form the longest branches in the tree and t...Continue Reading

References

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Citations

Aug 26, 2010·Proceedings of the National Academy of Sciences of the United States of America·Mary Beth SaffoClaudio H Slamovits
Jul 29, 2009·Trends in Parasitology·David A Morrison
Sep 30, 2008·International Journal for Parasitology·Miroslav OborníkJulius Lukes
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Jul 27, 2015·Current Opinion in Immunology·Shirley LuckhartCecilia Giulivi
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Apr 28, 2016·Environmental Microbiology Reports·Aurélie ChambouvetMiloslav Jirků
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Dec 12, 2007·The Journal of Eukaryotic Microbiology·Andrea ValigurováJirí Vávra
Oct 14, 2017·The ISME Journal·Wu XiongStefan Geisen
Dec 18, 2020·Parasite : Journal De La Société Française De Parasitologie·Letícia Pereira ÚngariLucia Helena O'Dwyer
Aug 2, 2021·European Journal of Protistology·Graciela Esmeralda Colunga-RamírezSheila Castellanos-Martínez

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