The mitochondrial genome of the entomoparasitic green alga helicosporidium.

PloS One
Jean-Francois Pombert, Patrick Keeling

Abstract

Helicosporidia are achlorophyllous, non-photosynthetic protists that are obligate parasites of invertebrates. Highly specialized, these pathogens feature an unusual cyst stage that dehisces inside the infected organism and releases a filamentous cell displaying surface projections, which will penetrate the host gut wall and eventually reproduce in the hemolymph. Long classified as incertae sedis or as relatives of other parasites such as Apicomplexa or Microsporidia, the Helicosporidia were surprisingly identified through molecular phylogeny as belonging to the Chlorophyta, a phylum of green algae. Most phylogenetic analyses involving Helicosporidia have placed them within the subgroup Trebouxiophyceae and further suggested a close affiliation between the Helicosporidia and the genus Prototheca. Prototheca species are also achlorophyllous and pathogenic, but they infect vertebrate hosts, inducing protothecosis in humans. The complete plastid genome of an Helicosporidium species was recently described and is a model of compaction and reduction. Here we describe the complete mitochondrial genome sequence of the same strain, Helicosporidium sp. ATCC 50920 isolated from the black fly Simulium jonesi. The circular mapping 49343 bp m...Continue Reading

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Citations

Apr 17, 2014·BMC Genomics·Haeyoung JeongWon-Joong Jeong
May 9, 2014·PLoS Genetics·Jean-François PombertPatrick J Keeling
Sep 28, 2013·BioMed Research International·Vassily A LyubetskyOleg A Zverkov
Oct 12, 2010·Nucleic Acids Research·Cestmir VlcekGertraud Burger
Feb 13, 2016·Molecular Phylogenetics and Evolution·Maryam NadimiMohamed Hijri
Sep 5, 2014·Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis·Massimiliano OrsiniGiacomo Cao
May 23, 2012·Journal of Invertebrate Pathology·Norberto ManceraAurélien Tartar
Jan 26, 2012·Wiley Interdisciplinary Reviews. RNA·Sandrine MoreiraGertraud Burger
Sep 29, 2020·Frontiers in Plant Science·Zofia BakułaTomasz Jagielski

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Datasets Mentioned

BETA
GQ339576

Methods Mentioned

BETA
PCRs
PCR

Software Mentioned

GETORF
PALINDROME
PHYML
ORFFINDER
CUSP
PhyloBayes
COFFEE
SE
BLAST
GRIMM

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