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Genomic adaptations of the halophilic Dead Sea filamentous fungus Eurotium rubrum

Titelangaben

Kis-Papo, Tamar ; Weig, Alfons ; Riley, Robert ; Peršoh, Derek ; Salamov, Asaf ; Sun, Hui ; Lipzen, Anna ; Wasser, Solomon P. ; Rambold, Gerhard ; Grigoriev, Igor V. ; Nevo, Eviatar:
Genomic adaptations of the halophilic Dead Sea filamentous fungus Eurotium rubrum.
In: Nature Communications. Bd. 5 (2014) . - Article number: 3745.
ISSN 2041-1723
DOI: https://doi.org/10.1038/ncomms4745

Abstract

The Dead Sea is one of the most hypersaline habitats on Earth. The fungus Eurotium rubrum (Eurotiomycetes) is among the few species able to survive there. Here we highlight its adaptive strategies, based on genome analysis and transcriptome profiling. The 26.2Mb genome of E. rubrum shows, for example, gains in gene families related to stress response and losses with regard to transport processes. Transcriptome analyses under different salt growth conditions revealed, among other things differentially expressed genes encoding ion and metabolite transporters. Our findings suggest that long-term adaptation to salinity requires cellular and metabolic responses that differ from short-term osmotic stress signalling. The transcriptional response indicates that halophilic E. rubrum actively counteracts the salinity stress. Many of its genes encode for proteins with a significantly higher proportion of acidic amino acid residues. This trait is characteristic of the halophilic prokaryotes as well, supporting the theory of convergent evolution under extreme hypersaline stress.

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Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Zusätzliche Informationen: BAYCEER122676
BAYCEER122032
Keywords: microarray; Transcription Genetic; Transcriptome; Eurotium; Ecology; genetics; Dead Sea; Hog; Salt Tolerance; salt resistance
Institutionen der Universität: Fakultäten
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie
Forschungseinrichtungen > Forschungszentren > Bayreuther Zentrum für Ökologie und Umweltforschung - BayCEER
Forschungseinrichtungen
Forschungseinrichtungen > Forschungszentren
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik > 570 Biowissenschaften; Biologie
Eingestellt am: 21 Mai 2014 06:08
Letzte Änderung: 07 Aug 2015 09:51
URI: https://eref.uni-bayreuth.de/id/eprint/390