Abstract
The Saccharomyces cerevisiae strains widely used for industrial fuel-ethanol production have been developed by selection, but their underlying beneficial genetic polymorphisms remain unknown. Here, we report the draft whole-genome sequence of the S. cerevisiae strain CAT-1, which is a dominant fuel-ethanol fermentative strain from the sugarcane industry in Brazil. Our results indicate that strain CAT-1 is a highly heterozygous diploid yeast strain, and the ~12-Mb genome of CAT-1, when compared with the reference S228c genome, contains ~36,000 homozygous and ~30,000 heterozygous single nucleotide polymorphisms, exhibiting an uneven distribution among chromosomes due to large genomic regions of loss of heterozygosity (LOH). In total, 58 % of the 6,652 predicted protein-coding genes of the CAT-1 genome constitute different alleles when compared with the genes present in the reference S288c genome. The CAT-1 genome contains a reduced number of transposable elements, as well as several gene deletions and duplications, especially at telomeric regions, some correlated with several of the physiological characteristics of this industrial fuel-ethanol strain. Phylogenetic analyses revealed that some genes were likely associated with traits important for bioethanol production. Identifying and characterizing the allelic variations controlling traits relevant to industrial fermentation should provide the basis for a forward genetics approach for developing better fermenting yeast strains.



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References
Akache B, Turcotte B (2002) New regulators of drug sensitivity in the family of yeast zinc cluster proteins. J Biol Chem 277:21254–21260
Akao T, Yashiro I, Hosoyama A, Kitagaki H, Horikawa H, Watanabe D, Akada R, Ando Y et al (2011) Whole-genome sequencing of sake yeast Saccharomyces cerevisiae Kyokai no. 7. DNA Res 18:423–434
Altschul SF, Gish W, Miller W, Myers EW, Lipman DJ (1990) Basic local alignment search tool. J Mol Biol 215:403–410
Alves-Jr SL, Herberts RA, Hollatz C, Trichez D, Miletti LC, de Araujo PS, Stambuk BU (2008) Molecular analysis of maltotriose active transport and fermentation by Saccharomyces cerevisiae reveals a determinant role for the AGT1 permease. Appl Environ Microbiol 74:1494–1501
Amorim-Neto HB, Yohannan BK, Bringhurst TA, Brosnan JM, Pearson SY, Walker JM, Walker GM (2009) Evaluation of a Brazilian fuel alcohol yeast strain for Scotch Whisky fermentations. J Inst Brew 115:198–207
Andrietta MGS, Andrietta SR, Steckelberg C, Stupiello ENA (2007) Bioethanol—Brazil, 30 years of Proálcool. Int Sugar J 109:195–200
Araya CL, Payen C, Dunham MJ, Fields S (2010) Whole-genome sequencing of a laboratory-evolved yeast strain. BMC Genomics 11:88
Argueso JL, Carazzolle MF, Mieczkowski PA, Duarte FM, Netto OV, Missawa SK, Galzerani F et al (2009) Genome structure of a Saccharomyces cerevisiae strain widely used in bioethanol production. Genome Res 19:2258–2270
Basso LC, de Amorim HV, de Oliveira AJ, Lopes ML (2008) Yeast selection for fuel ethanol production in Brazil. FEMS Yeast Res 8:1155–1163
Basso TO, de Kok S, Dario M, do Espirito-Santo JC, Müller G, Schlölg PS, Silva CP et al (2011) Engineering topology and kinetics of sucrose metabolism in Saccharomyces cerevisiae for improved ethanol yield. Metab Eng 13:694–703
Benitez T, Gasent-Ramirez JM, Castrejon F, Codon AC (1996) Development of new strains for the food industry. Biotechnol Prog 12:149–163
Bobrowicz P, Wysocki R, Owsianik G, Goffeau A, Ulaszewski S (1997) Isolation of three contiguous genes, ACR1, ACR2 and ACR3, involved in resistance to arsenic compounds in the yeast Saccharomyces cerevisiae. Yeast 13:819–828
Borneman AR, Forgan AH, Pretorius IS, Chambers PJ (2008) Comparative genome analysis of a Saccharomyces cerevisiae wine strain. FEMS Yeast Res 8:1185–1195
Borneman AR, Desany BA, Riches D, Affourtit JP, Forgan AH, Pretorius IS, Egholm M, Chambers PJ (2011) Whole-genome comparison reveals novel genetic elements that characterize the genome of industrial strains of Saccharomyces cerevisiae. PLoS Genet 7:e1001287
Brem RB, Yvert G, Clinton R, Kruglyak L (2002) Genetic dissection of transcriptional regulation in budding yeast. Science 296:752–755
Broach JR (1991) Ras-regulated signaling processes in Saccharomyces cerevisiae. Curr Opin Genet Dev 1:370–377
Codon AC, Benitez T, Korhola M (1998) Chromosomal polymorphism and adaptation to specific industrial environments of Saccharomyces strains. Appl Microbiol Biotechnol 49:154–163
Dowell RD, Ryan O, Jansen A, Cheung D, Agarwala S, Danford T, Bernstein DA, Rolfe PA et al (2010) Genotype to phenotype: a complex problem. Science 328:469
Dunn B, Richter C, Kvitek DJ, Pugh T, Sherlock G (2012) Analysis of the Saccharomyces cerevisiae pan-genome reveals a pool of copy number variants distributed in diverse yeast strains from differing industrial environments. Genome Res. doi:10.1101/gr.130310.111
Duval EH, Alves-Jr SL, Dunn B, Sherlock G, Stambuk BU (2010) Microarray karyotyping of maltose-fermenting Saccharomyces yeasts with differing maltotriose utilization profiles reveals copy number variation in genes involved in maltose and maltotriose utilization. J Appl Microbiol 109:248–259
Esberg A, Muller LA, McCusker JH (2011) Genomic structure of and genome-wide recombination in the Saccharomyces cerevisiae S288C progenitor isolate EM93. PLoS ONE 6:e25211
Farrell AE, Plevin RJ, Turner BT, Jones AD, O’Hare M, Kammen DM (2006) Ethanol can contribute to energy and environmental goals. Science 311:506–508
Felsenstein J (1989) Phylogeny Inference Package (Version 3.2). Cladistics 5:164–166
Goffeau A, Barrell BG, Bussey H, Davis RW, Dujon B, Feldmann H, Galibert F, Hoheisel JD, Jacq C, Johnston M et al (1996) Life with 6000 genes. Science 274:546–563
Goldemberg J (2007) Ethanol for a sustainable energy future. Science 315:808–810
Goldemberg J, Guardabassi P (2010) The potential for first-generation ethanol production from sugarcane. Biofuels Bioprod Bioref 4:17–24
Hardison RC (2000) Conserved noncoding sequences are reliable guides to regulatory elements. Trends Genet 16:369–372
Hardison RC (2003) Comparative genomics. PLoS Biol 1:e58
Huang X, Zhang J (1996) Methods for comparing a DNA sequence with a protein sequence. Comput Appl Biosci 12:497–506
Ide S, Watanabe K, Watanabe H, Shirahige K, Kobayashi T, Maki H (2007) Abnormality in initiation program of DNA replication is monitored by the highly repetitive rRNA gene array on chromosome XII in budding yeast. Mol Cell Biol 27:568–578
Ide S, Miyazaki T, Maki H, Kobayashi T (2010) Abundance of ribosomal RNA gene copies maintains genome integrity. Science 327:693–696
Isnard AD, Thomas D, Surdin-Kerjan Y (1996) The study of methionine uptake in Saccharomyces cerevisiae reveals a new family of amino acid permeases. J Mol Biol 262:473–484
Jacquot C, Julien R, Guilloton M (1997) The Saccharomyces cerevisiae MFS superfamily SGE1 gene confers resistance to cationic dyes. Yeast 13:891–902
Kellis M, Patterson N, Endrizzi M, Birren B, Lander ES (2003) Sequencing and comparison of yeast species to identify genes and regulatory elements. Nature 423:241–254
Kurtz S, Phillippy A, Delcher AL, Smoot M, Shumway M, Antonescu C, Salzberg SL (2004) Versatile and open software for comparing large genomes. Genome Biol 5:R12
Larroy C, Pares X, Biosca JA (2002) Characterization of a Saccharomyces cerevisiae NADP(H)-dependent alcohol dehydrogenase (ADHVII), a member of the cinnamyl alcohol dehydrogenase family. Eur J Biochem 269:5738–5745
Leal MRLV, Walter AD (2010) Sustainability of the production of ethanol from sugarcane: the Brazilian experience. Int Sugar J 112:390–396
Levy S, Sutton G, Ng PC, Feuk L, Halpern AL, Walenz BP, Axelrod N, Huang J, Kirkness EF, Denisov G et al (2007) The diploid genome sequence of an individual human. PLoS Biol 5:e254
Li Y, Carroll DS, Gardner SN, Walsh MC, Vitalis EA, Damon IK (2007) On the origin of smallpox: correlating variola phylogenics with historical smallpox records. Proc Natl Acad Sci USA 104:15787–15792
Liti G, Carter DM, Moses AM, Warringer J, Parts L, James SA, Davey RP, Roberts IN, Burt A, Koufopanou V et al (2009) Population genomics of domestic and wild yeasts. Nature 458:337–341
Litvin O, Causton HC, Chen BJ, Pe’er D (2009) Modularity and interactions in the genetics of gene expression. Proc Natl Acad Sci USA 106:6441–6446
Liu H, Styles CA, Fink GR (1996) Saccharomyces cerevisiae S288C has a mutation in FLO8, a gene required for filamentous growth. Genetics 144:967–978
Madsen KM, Udatha GD, Semba S, Otero JM, Koetter P, Nielsen J, Ebizuka Y, Kushiro T, Panagiotou G (2011) Linking genotype and phenotype of Saccharomyces cerevisiae strains reveals metabolic engineering targets and leads to triterpene hyper-producers. PLoS ONE 6:e14763
Magwene PM, Kayıkçı Ö, Granek JA, Reininga JM, Scholl Z, Murray D (2011) Outcrossing, mitotic recombination, and life-history trade-offs shape genome evolution in Saccharomyces cerevisiae. Proc Natl Acad Sci USA 108:1987–1992
Margulies M, Egholm M, Altman WE, Attiya S, Bader JS, Bemben LA, Berka J, Braverman MS, Chen YJ, Chen Z et al (2005) Genome sequencing in microfabricated high-density picolitre reactors. Nature 437:376–380
Ness F, Aigle M (1995) RTM1: a member of a new family of telomeric repeated genes in yeast. Genetics 140:945–956
Novo M, Bigey F, Beyne E, Galeote V, Gavory F, Mallet S, Cambon B, Legras JL, Wincker P, Casaregola S, Dequin S (2009) Eukaryote-to-eukaryote gene transfer events revealed by the genome sequence of the wine yeast Saccharomyces cerevisiae EC1118. Proc Natl Acad Sci USA 106:16333–16338
Ogihara F, Kitagaki H, Wang Q, Shimoi H (2008) Common industrial sake yeast strains have three copies of the AQY1-ARR3 region of chromosome XVI in their genomes. Yeast 25:419–432
Otero JM, Vongsangnak W, Asadollahi MA, Olivares-Hernandes R, Maury J, Farinelli L et al (2010) Whole genome sequencing of Saccharomyces cerevisiae: from genotype to phenotype for improved metabolic engineering applications. BMC Genomics 11:723
Park JI, Grant CM, Dawes IW (2005) The high-affinity cAMP phosphodiesterase of Saccharomyces cerevisiae is the major determinant of cAMP levels in stationary phase: involvement of different branches of the Ras-cyclic AMP pathway in stress responses. Biochem Biophys Res Commun 327:311–319
Pereira FB, Guimarães PM, Teixeira JA, Domingues L (2010) Selection of Saccharomyces cerevisiae strains for efficient very high gravity bio-ethanol fermentation processes. Biotechnol Lett 32:1655–1661
Riveros-Rosas H, Julián-Sánchez A, Villalobos-Molina R, Pardo JP, Piña E (2003) Diversity, taxonomy and evolution of medium-chain dehydrogenase/reductase superfamily. Eur J Biochem 270:3309–3334
Rose MD, Winston F, Hieter P (1990) Methods in yeast genetics. Cold Spring Harbor Laboratory Press, New York
Rouillon A, Surdin-Kerjan Y, Thomas D (1999) Transport of sulfonium compounds. Characterization of the s-adenosylmethionine and s-methylmethionine permeases from the yeast Saccharomyces cerevisiae. J Biol Chem 274:28096–28105
Sidow A (2002) Sequence first: ask questions later. Cell 111:13–16
Silva-Filho EA, dos Santos SKB, Resende AM, de Morais JO, De Morais MA Jr, Simoes DA (2005) Yeast population dynamics of industrial fuel-ethanol fermentation process assessed by PCR-fingerprinting. Antonie Van Leeuwenhoek 88:13–23
Smith EN, Kruglyak L (2008) Gene–environment interaction in yeast gene expression. PLoS Biol 6:e83
Stambuk BU, Dunn B, Alves-Jr SL, Duval EH, Sherlock G (2009) Industrial fuel ethanol yeasts contain adaptive copy number changes in genes involved in vitamin B1 and B6 biosynthesis. Genome Res 19:2271–2278
Stanke M, Schoffmann O, Morgenstern B, Waack S (2006) Gene prediction in eukaryotes with a generalized hidden Markov model that uses hints from external sources. BMC Bioinformatics 7:62
Stephens C, Harrison SJ, Kazan K, Smith FW, Goulter KC, Maclean DJ, Manners JM (2005) Altered fungal sensitivity to a plant antimicrobial peptide through over-expression of yeast cDNAs. Curr Genet 47:194–201
Tanaka K, Nakafuku M, Tamanoi F, Kaziro Y, Matsumoto K, Toh-e A (1990) IRA2, a second gene of Saccharomyces cerevisiae that encodes a protein with a domain homologous to mammalian ras GTPase-activating protein. Mol Cell Biol 10:4303–4313
Thevelein JM, de Winde JH (1999) Novel sensing mechanisms and targets for the cAMP-protein kinase A pathway in the yeast Saccharomyces cerevisiae. Mol Microbiol 33:904–918
Vinci CR, Clarke SG (2010) Homocysteine methyltransferases Mht1 and Sam4 prevent the accumulation of age-damaged (R,S)-AdoMet in the yeast Saccharomyces cerevisiae. J Biol Chem 285:20526–20531
Wang P, Kim Y, Pollack J, Narasimhan B, Tibshirani R (2005) A method for calling gains and losses in array CGH data. Biostatistics 6:45–58
Wang C, Mitsuya Y, Gharizadeh B, Ronaghi M, Shafer RW (2007) Characterization of mutation spectra with ultra-deep pyrosequencing: application to HIV-1 drug resistance. Genome Res 17:1195–1201
Wei W, McCusker JH, Hyman RW, Jones T, Ning Y, Cao Z, Gu Z, Bruno D, Miranda M, Nguyen M et al (2007) Genome sequencing and comparative analysis of Saccharomyces cerevisiae strain YJM789. Proc Natl Acad Sci USA 104:12825–12830
Zaman S, Lippman SI, Schneper L, Slonim N, Broach JR (2009) Glucose regulates transcription in yeast through a network of signaling pathways. Mol Syst Biol 5:245
Acknowledgments
The work of B.U.S. at Stanford University was possible through a visiting fellowship (BEX2793-05-9) from CAPES, Brazil.
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Communicated by T. Ito.
The authors F. Babrzadeh and R. Jalili contributed equally to this work.
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Babrzadeh, F., Jalili, R., Wang, C. et al. Whole-genome sequencing of the efficient industrial fuel-ethanol fermentative Saccharomyces cerevisiae strain CAT-1. Mol Genet Genomics 287, 485–494 (2012). https://doi.org/10.1007/s00438-012-0695-7
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DOI: https://doi.org/10.1007/s00438-012-0695-7