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Table 1 Point mutations discovered in GS-evolved strain R57

From: Deconstructing the genetic basis of spent sulphite liquor tolerance using deep sequencing of genome-shuffled yeast

Gene

Chr

Mutation

Gene function

Genotype

SIFT score

NRG1

IV

137C > A (P46Q)

Transcriptional repressor, stress tolerance

Homo

0

UBP7 a

IX

2466 T > A (N822K)

Ubiquitin-specific protease

Homo

0.33

ART5 a

VII

454C > A (L152I)

Regulates endocytosis and turnover of cell-surface proteins by targeted ubiquitination

Hetero

0.17

SSA1 a

I

91C > A (Q31K)

ATP-ase, protein folding, heat shock, HSP70

Hetero

0

GDH1 b

XV

47C > T (S16F)

Glutamate synthesis from ammonia

Hetero

0

GDH1 b

68 T > G (F23C)

Hetero

0

ARO1 b

IV

1283C > T (S428F)

Catalyzes biosynthesis of chorismate leading to aromatic amino acids

Hetero

0

ARO1 b

1284C > T (Silent)

Hetero

-

STE5 b

IV

512C > T (S171F)

Pheromone-response scaffold protein, forms MAPK cascade complex

Hetero

0

STE5 b

2649 T > C (Silent)

Hetero

-

MAL11 b

VII

310C > T (P104S)

Alpha-glucoside symporter, with high affinity for trehalose

Hetero

0

MAL11 b

482 T > A (M161K)

Hetero

0.02

GSH1 c

X

T > A (73 bp 5′ UTR)

Glutamylcysteine synthetase, glutathione biosynthesis

Hetero

-

PBP1 c

VII

T > C (191 bp 5′ UTR)

Controls mRNA poly(A), stress granule formation and translation control

Hetero

-

FIT3 c

XV

C > T (42 bp 3′ UTR)

Iron transport

Hetero

-

NOP58 c

XV

A > T (25 bp 3′ UTR)

Pre-rRNA processing and rRNA synthesis

Hetero

-

YNL058Cd

XIV

7A > G (K3E)

Unknown function

Hetero

0.42

DOP1 d

IV

40A > T (N14Y)

Endosome to Golgi transport, ER organization, cell polarity and morphogenesis

Hetero

0.05

TOF2 d

XI

2141 C > T (S714L)

rDNA silencing, stimulates Cdc14p for mitotic rDNA separation

Hetero

0.27

SGO1 d

XV

575C > A (S192Y)

Chromosomal segregation and stability

Hetero

0.03

  1. Bold font represents alleles that gain in frequency over GS evolution. aGene group containing genes that are related to protein homeostasis. bGene group containing genes bearing more than one mutation in R57. cGene group containing UTR mutations. dGene group containing alleles with limited evidence for a phenotypic linkage to HWSSL tolerance.