Universität zu Köln

Monteiro, Catia ORCID: 0000-0002-5392-072X, Heinrich, Sandra, Bartsch, Inka, Valentin, Klaus, Corre, Erwan, Collen, Jonas, Harms, Lars, Gloeckner, Gernot and Bischof, Kai (2019). Temperature Modulates Sex-Biased Gene Expression in the Gametophytes of the Kelp Saccharina latissima. Front. Mar. Sci., 6. LAUSANNE: FRONTIERS MEDIA SA. ISSN 2296-7745

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Abstract

Saccharina latissima is an economically and ecologically relevant kelp species in Europe and North America. In kelps, the sexuality is expressed during the haploid life stage and the microscopic gametophytes exhibit significant sexual dimorphism. To understand the sex-dependent impact of temperature on the gametophyte stage, we analyzed for the first time, gene expression profiles of male and female gametophytes at three different temperatures (4, 12, and 20 degrees C) characteristic for the species distribution range by using RNA-sequencing. We identified several differentially expressed genes (DEGs) between sexes; while female biased genes were enriched in general metabolism and energy production, male biased genes function within cell cycle and signaling. In our study, temperature modulated sex-biased gene expression, with only a small percentage of DEGs consistently male (7%) or female-biased (12%) at the three temperatures. Female gametophytes responded stronger to higher temperatures than males, suggesting that males are more heat tolerant. Differences between S. latissima and other brown algal gender-dependent gene expression might mirror the different evolutionary and ecological contexts. Genomic information on kelp gametophyte is still scarce and thus this study adds to our knowledge on sex differences in abiotic stress responses in macroalgae at the transcriptomic level.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Monteiro, Catia UNSPECIFIED orcid.org/0000-0002-5392-072X UNSPECIFIED Heinrich, Sandra UNSPECIFIED UNSPECIFIED UNSPECIFIED Bartsch, Inka UNSPECIFIED UNSPECIFIED UNSPECIFIED Valentin, Klaus UNSPECIFIED UNSPECIFIED UNSPECIFIED Corre, Erwan UNSPECIFIED UNSPECIFIED UNSPECIFIED Collen, Jonas UNSPECIFIED UNSPECIFIED UNSPECIFIED Harms, Lars UNSPECIFIED UNSPECIFIED UNSPECIFIED Gloeckner, Gernot UNSPECIFIED UNSPECIFIED UNSPECIFIED Bischof, Kai UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-124509
DOI:	10.3389/fmars.2019.00769
Journal or Publication Title:	Front. Mar. Sci.
Volume:	6
Date:	2019
Publisher:	FRONTIERS MEDIA SA
Place of Publication:	LAUSANNE
ISSN:	2296-7745
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language BROWN ALGA ECTOCARPUS; LAMINARIA-SACCHARINA; LIFE-HISTORY; UNDARIA-PINNATIFIDA; CHELATED IRON; GROWTH; EVOLUTION; LIGHT; PHAEOPHYCEAE; REPRODUCTION Multiple languages Environmental Sciences; Marine & Freshwater Biology Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/12450