Evolutionary Origins of Rhizarian Parasites

Type Article
Date 2016-04
Language English
Author(s) Sierra Roberto1, Canas-Duarte Silvia J.2, 8, Burki Fabien3, Schwelm Arne4, Fogelqvist Johan4, Dixelius Christina4, Gonzalez-Garcia Laura N.2, Gile Gillian H.5, Slamovits Claudio H.5, Klopp Christophe6, Restrepo Silvia2, Arzul IsabelleORCID7, Pawlowski Jan1
Affiliation(s) 1 : Univ Geneva, Dept Genet & Evolut, Geneva, Switzerland.
2 : Univ Los Andes, Dept Biol Sci, Bogota, Colombia.
3 : Univ British Columbia, Dept Bot, Vancouver, BC, Canada.
4 : Swedish Univ Agr Sci, Linnean Ctr Plant Biol, Uppsala BioCtr, Dept Plant Biol, Uppsala, Sweden.
5 : Dalhousie Univ, Dept Biochem & Mol Biol, Halifax, NS, Canada.
6 : INRA, GenoToul Bioinformat Facil, F-31931 Toulouse, France.
7 : IFREMER, La Tremblade, France.
8 : Harvard Univ, Sch Med, Dept Syst Biol, Boston, MA USA.
Source Molecular Biology And Evolution (0737-4038) (Oxford Univ Press), 2016-04 , Vol. 33 , N. 4 , P. 980-983
DOI 10.1093/molbev/msv340
WOS© Times Cited 29
Keyword(s) Rhizaria, parasites, phylogenomics
Abstract The SAR group (Stramenopila, Alveolata, Rhizaria) is one of the largest clades in the tree of eukaryotes and includes a great number of parasitic lineages. Rhizarian parasites are obligate and have devastating effects on commercially important plants and animals but despite this fact, our knowledge of their biology and evolution is limited. Here, we present rhizarian transcriptomes from all major parasitic lineages in order to elucidate their evolutionary relationships using a phylogenomic approach. Our results suggest that Ascetosporea, parasites of marine invertebrates, are sister to the novel clade Apofilosa. The phytomyxean plant parasites branch sister to the vampyrellid algal ectoparasites in the novel clade Phytorhiza. They also show that Ascetosporea + Apofilosa + Retaria + Filosa + Phytorhiza form a monophyletic clade, although the branching pattern within this clade is difficult to resolve and appears to be model-dependent. Our study does not support the monophyly of the rhizarian parasitic lineages (Endomyxa), suggesting independent origins for rhizarian animal and plant parasites.
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Sierra Roberto, Canas-Duarte Silvia J., Burki Fabien, Schwelm Arne, Fogelqvist Johan, Dixelius Christina, Gonzalez-Garcia Laura N., Gile Gillian H., Slamovits Claudio H., Klopp Christophe, Restrepo Silvia, Arzul Isabelle, Pawlowski Jan (2016). Evolutionary Origins of Rhizarian Parasites. Molecular Biology And Evolution, 33(4), 980-983. Publisher's official version : https://doi.org/10.1093/molbev/msv340 , Open Access version : https://archimer.ifremer.fr/doc/00320/43156/