title: Parallel evolution of the make-accumulate-consume strategy in Saccharomyces and Dekkera yeasts.
abstract: Saccharomyces yeasts degrade sugars to two-carbon components, in particular ethanol, even in the presence of excess oxygen. This characteristic is called the Crabtree effect and is the background for the 'make-accumulate-consume' life strategy, which in natural habitats helps Saccharomyces yeasts to out-compete other microorganisms. A global promoter rewiring in the Saccharomyces cerevisiae lineage, which occurred around 100 mya, was one of the main molecular events providing the background for evolution of this strategy. Here we show that the Dekkera bruxellensis lineage, which separated from the Saccharomyces yeasts more than 200 mya, also efficiently makes, accumulates and consumes ethanol and acetic acid. Analysis of promoter sequences indicates that both lineages independently underwent a massive loss of a specific cis-regulatory element from dozens of genes associated with respiration, and we show that also in D. bruxellensis this promoter rewiring contributes to the observed Crabtree effect.
authors.affiliation: Department of Biology, Lund University, Sölvegatan 35, 223 62 Lund, Sweden.
authors.forename: Elzbieta
authors.initials: E
authors.lastname: Rozpędowska
authors.forename: Linda
authors.initials: L
authors.lastname: Hellborg
authors.forename: Olena P
authors.initials: OP
authors.lastname: Ishchuk
authors.forename: Furkan
authors.initials: F
authors.lastname: Orhan
authors.forename: Silvia
authors.initials: S
authors.lastname: Galafassi
authors.forename: Annamaria
authors.initials: A
authors.lastname: Merico
authors.forename: Megan
authors.initials: M
authors.lastname: Woolfit
authors.forename: Concetta
authors.initials: C
authors.lastname: Compagno
authors.forename: Jure
authors.initials: J
authors.lastname: Piskur
mesh_terms: D019342:Acetic Acid / Q000378:metabolism*; D000693:Anaerobiosis; D001483:Base Sequence; D005075:Biological Evolution; D004271:DNA, Fungal / Q000235:genetics / Q000378:metabolism; D004272:DNA, Mitochondrial; D055167:Dekkera / Q000235:genetics / Q000378:metabolism*; D000431:Ethanol / Q000378:metabolism*; D005285:Fermentation; D005947:Glucose / Q000378:metabolism*; D010802:Phylogeny; D011401:Promoter Regions, Genetic; D012335:RNA, Ribosomal; D012441:Saccharomyces cerevisiae / Q000235:genetics / Q000378:metabolism*; D017422:Sequence Analysis, DNA
chemical_list: D004271:DNA, Fungal; D004272:DNA, Mitochondrial; D012335:RNA, Ribosomal; C065096:RNA, ribosomal, 26S; D000431:Ethanol; D005947:Glucose; D019342:Acetic Acid