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Unexpected conservation of the RNA splicing apparatus in the highly streamlined genome of Galdieria sulphuraria

Overview of attention for article published in BMC Ecology and Evolution, April 2018
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Title
Unexpected conservation of the RNA splicing apparatus in the highly streamlined genome of Galdieria sulphuraria
Published in
BMC Ecology and Evolution, April 2018
DOI 10.1186/s12862-018-1161-x
Pubmed ID
Authors

Huan Qiu, Alessandro W. Rossoni, Andreas P. M. Weber, Hwan Su Yoon, Debashish Bhattacharya

Abstract

Genome reduction in intracellular pathogens and endosymbionts is usually compensated by reliance on the host for energy and nutrients. Free-living taxa with reduced genomes must however evolve strategies for generating functional diversity to support their independent lifestyles. An emerging model for the latter case is the Rhodophyta (red algae) that comprises an ecologically widely distributed, species-rich phylum. Red algae have undergone multiple phases of significant genome reduction, including extremophilic unicellular taxa with limited nuclear gene inventories that must cope with hot, highly acidic environments. Using genomic data from eight red algal lineages, we identified 155 spliceosomal machinery (SM)-associated genes that were putatively present in the red algal common ancestor. This core SM gene set is most highly conserved in Galdieria species (150 SM genes) and underwent differing levels of gene loss in other examined red algae (53-145 SM genes). Surprisingly, the high SM conservation in Galdieria sulphuraria coincides with the enrichment of spliceosomal introns in this species (2 introns/gene) in comparison to other red algae (< 0.34 introns/gene). Spliceosomal introns in G. sulphuraria undergo alternatively splicing, including many that are differentially spliced upon changes in culture temperature. Our work reveals the unique nature of G. sulphuraria among red algae with respect to the conservation of the spliceosomal machinery and introns. We discuss the possible implications of these findings in the highly streamlined genome of this free-living eukaryote.

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Geographical breakdown

Country Count As %
Unknown 21 100%

Demographic breakdown

Readers by professional status Count As %
Researcher 4 19%
Student > Ph. D. Student 4 19%
Lecturer 2 10%
Student > Bachelor 2 10%
Professor 1 5%
Other 2 10%
Unknown 6 29%
Readers by discipline Count As %
Biochemistry, Genetics and Molecular Biology 8 38%
Agricultural and Biological Sciences 5 24%
Nursing and Health Professions 1 5%
Chemistry 1 5%
Unknown 6 29%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 03 April 2018.
All research outputs
#22,767,715
of 25,382,440 outputs
Outputs from BMC Ecology and Evolution
#3,511
of 3,714 outputs
Outputs of similar age
#302,816
of 342,742 outputs
Outputs of similar age from BMC Ecology and Evolution
#50
of 52 outputs
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