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The complete sequence of the smallest known nuclear genome from the microsporidian Encephalitozoon intestinalis
The complete sequence of the E. intestinalis genome is described and its comparison with that of E. cuniculi, showing that the two species share a conserved gene content, order and density over most of their genomes. Expand
The evolutionary history of haptophytes and cryptophytes: phylogenomic evidence for separate origins
The evolutionary position of haptophytes, an ecologically critical component of the oceans, is resolved and a new hypothesis for the origin of cryptophytes is proposed, which strongly support haaptophytes as sister to the SAR group, possibly together with telonemids and centrohelids. Expand
The chloroplast genome sequence of the green alga Pseudendoclonium akinetum (Ulvophyceae) reveals unusual structural features and new insights into the branching order of chlorophyte lineages.
Phylogenetic analyses of 58 cpDNA-encoded proteins and genes support the hypothesis that the Ulvophyceae is sister to the Trebouxiophyeae but cannot eliminate the hypothesis That the ULVophycee is sisters to the Chlorophycees. Expand
Draft genome sequence of the Daphnia pathogen Octosporea bayeri: insights into the gene content of a large microsporidian genome and a model for host-parasite interactions
An in-depth survey of the large genome of Octosporea bayeri, a pathogen of Daphnia magna, with an estimated genome size of 24 Mb, is presented in order to shed light on the organization and content of a large microsporidian genome. Expand
The complete chloroplast DNA sequence of the green alga Oltmannsiellopsis viridis reveals a distinctive quadripartite architecture in the chloroplast genome of early diverging ulvophytes
The complete cpDNA sequence of Oltmannsiellopsis viridis is determined, a representative of a distinct, early diverging lineage of the Ulvophyceae, and comparative analyses of chlorophyte cpDNAs support the notion that the ulvophyte homologue is sister to the Chlorophycesae. Expand
The Complete Plastid Genomes of the Two ‘Dinotoms’ Durinskia baltica and Kryptoperidinium foliaceum
These results suggest that while the plastid genomes of two dinotoms share very similar gene content and genome organization with that of the free-living pennate diatom P. tricornutum, the K. folicaeum plastsid genome has absorbed two exogenous plasmids. Expand
The Green Algal Ancestry of Land Plants as Revealed by the Chloroplast Genome
Phylogenies inferred from multiple chloroplast genes and proteins support the hypothesis that the Charales are sister to a clade composed of the Coleochaetales, the Zygnematales, and land plants, thus implying a more complex evolutionary history for charophycean green algae. Expand
Evolution of a morphological novelty occurred before genome compaction in a lineage of extreme parasites
  • K. Haag, T. James, +4 authors D. Ebert
  • Biology, Medicine
  • Proceedings of the National Academy of Sciences
  • 13 October 2014
The evolutionary history of a new microsporidian parasite found in the hindgut epithelium of the crustacean Daphnia is described and it is concluded that the new species has retained ancestral features that were lost in othermicrosporidia, whose hallmarks are the evolution of a unique infection apparatus, extreme genome reduction, and loss of mitochondrial respiration. Expand
Gain and loss of multiple functionally related, horizontally transferred genes in the reduced genomes of two microsporidian parasites
Data suggest that a recent common ancestor of E. hellem and E. romaleae assembled a complete metabolic pathway from multiple independent HGT events and that one descendent already is dispensing with much of this new functionality, highlighting the transient nature of transferred genes. Expand
A Lack of Parasitic Reduction in the Obligate Parasitic Green Alga Helicosporidium
The nuclear genome of Helicosporidium is characterised to compare its transition to parasitism with that of apicomplexans and presents a fascinating picture of the early stages of a transition from free-living autotroph to parasitic heterotroph where host-independence has been unexpectedly preserved. Expand