TECHNOLOGY FOCUS - BIOTECHNOLOGY - Preferred Method: (M1) involves comparing the genome sequence of the industrial yeast with the genome sequence of S.cerevisiae after the analyzing step and before the selecting step; carrying out functional analysis of the selected gene after the selecting step; and screening genes involved in increase of productivity and/or alcoholic beverage by the functional analysis of the above carrying out step. In (M1), the functional analysis is performed by disruption of a gene or overexpression of a gene. In (M2), (A1) is used, and percentage of genes which hybridize to DNAs of (a) and/or (b), but not to DNAs of (i) and/or (j) is determined as hybridization ratio to any of (a)-(d), and percentage of genes which hybridize to DNAs of (e) and/or (f), but not to DNAs of (g) and/or (h) is determined as hybridization ratio to any of (e) and/or (f). In (M4), the yeast belongs to the genus of Saccharomyces.Preferred Library: In (I), (G1) is comprised in, consists of or has any nucleotide sequence chosen from SEQ ID No. 33-6236, 166154-166181, 166490-167042 and 173125-174603.Preferred Array: (A1) comprises DNAs where one or more DNA is chosen from every group of (a)-(d). The DNAs of (a) is comprised in, consists of or has any nucleotide sequence chosen from SEQ ID No. 33-6236, 166154-166181, 6237-75336 and 166182-166489. (A1) further comprises, in addition to one or more DNAs chosen from (a)-(d), (e) DNA consisting of a nucleotide sequence of an open reading frame of the genome sequence of an industrial yeast which encodes an amino acid sequence having identity of more than 97% to an amino acid sequence encoded by the gene of S.cerevisiae, or a nucleotide sequence complementary to the above nucleotide sequence, or a nucleotide sequence of continuous 10 or more nucleotides chosen from the above nucleotide sequences, and (f) DNA consisting of a nucleotide sequence of the genome sequence of an industrial yeast other than from open reading frames which consists of a nucleotide sequence having identity of more than 94% to the nucleotide sequence of the gene of S.cerevisiae, or a nucleotide sequence complementary to the above nucleotide sequence, or a nucleotide sequence of continuous 10 or more nucleotides chosen from the above nucleotide sequences, and optionally comprises (g) DNA consisting of a nucleotide sequence which contains mismatch of one or more base(s) to the DNA of (e), or a nucleotide sequence complementary to the above nucleotide sequence, and (h) DNA consisting of a nucleotide sequence which contains mismatch of one or more base(s) to the DNA of (f), or a nucleotide sequence complementary to the above nucleotide sequence. The DNAs of (e) has a nucleotide sequence of any one of SEQ ID No. 75337-82784, or 82785-166153. (A1) comprises, in addition to one or more DNAs chosen from (a)-(d), (i) DNA consisting of a nucleotide sequence which contains mismatch of one or more base(s) to the DNA of (a), preferably 1 base to the DNA of (a), or a nucleotide sequence complementary to the above nucleotide sequence, (j) DNA consisting of a nucleotide sequence which contains mismatch of one or more base(s) to the DNA of (b), preferably 1 base to the DNA of (b), or a nucleotide sequence complementary to the above nucleotide sequence, (k) DNA consisting of a nucleotide sequence which contains mismatch of one or more base(s) to the DNA of (c), preferably 1 base to the DNA of (c), or a nucleotide sequence complementary to the above nucleotide sequence, and (l) DNA consisting of a nucleotide sequence which contains mismatch of one or more base(s) to the DNA of (d), preferably 1 base to the DNA of (d), or a nucleotide sequence complementary to the above nucleotide sequence. (A1) comprises one or more group of DNAs chosen from (a)-(d), one or more group of DNAs chosen from (i)-(l), DNAs of (e) and/or (f) and DNAs of (g) and/or (h). The DNAs are oligonucleotides consisting of 10-30 nucleotides.Preferred Nucleic Acid: In (G2), the concentration of sulfite in a culture medium of an industrial yeast increases when the gene is expressed in the yeast. (N1) is chosen from a nucleic acid having SEQ ID No. 1 (having nonSc-SSU1 gene), and a nucleic acid having a nucleotide sequence which hybridizes to the nucleotide sequence complementary to SEQ ID No. 1 under a stringent condition, and encodes a polypeptide having an activity to increase concentration of sulfite in a culture medium of an industrial yeast when the gene is expressed in the yeast. (P1) is encoded by (N1).Preferred Transformant: (T1) is a yeast of genus Saccharomyces. EXAMPLE - Analysis of gene (e.g. Saccharomyces pastorianus Weihenstephan 34/70) of an industrial yeast, was carried out as follows. Chromosomal DNA was isolated from S.pastorianus Weihenstephan 34/70 cells, which was grown in yeast extract/peptone/dextrose (YPD) medium (200 mL) (containing 2% glucose, 1% yeast extract and 2% polypeptone) at 30degreesC. Cosmid library was prepared by partially digesting the genomic DNA (0.1 mg) with Sau3AI, and inserting the fragment into a BamHI site of Super CosI vector. The prepared ligated product was subjected to packaging using Gigapack III gold and introduced into Escherichia coli XLI-blue MR strain. The strain was spread on Luria-Bertani (LB) plate medium containing ampicillin (0.1 mg/mL), and incubated at 37degreesC through the night. The resulting transformants were cultured through the night at 37degreesC in LB medium (50 muL each well) using a 96-well titer plate, and 50% glycerol solution (50 muL) was added to it. The DNA sequence was determined. A DNA fragment from the cosmid library was prepared. A clone derived from the cosmid library was inoculated to each well of a 96-well plate to which each of a 2XYT medium (1.0 mL) (1.6% bactotryptone, 0.1% yeast extract and 0.5% sodium chloride, pH 7.0) having ampicillin (50 micrograms/mL) was placed and subjected to shake culture at 30degreesC through the night. A cosmid DNA was prepared from the culture using KURABO PI-1100 AUTOMATIC DNA ISOLATION SYSTEM, and was used as template for sequence reaction. The prepared cosmid DNA was mixed with DYEnamic ET Terminator sequencing kit (2 mul), and appropriate primers to give 8 mul of reaction mixture. A forward primer SS-cos F.1 (having SEQ ID No. 7) and a reverse primer SS-cos R.1 (having SEQ ID No. 8) were used for cosmid DNA. The reaction solution was subjected to dye terminator sequence reaction of 60 cycles using a GeneAmp PCR system 9700, and was subjected to purification. The purified reactant was analyzed using a mega BACE 1000 sequence system and ABI PRISM 3700 DNA analyzer. The data on 332592 sequence obtained by the mega BACE 1000 sequencing system and on 13461 sequence obtained by the 3700 DNA Analyzer were transferred to a server Enterprises 6500 and preserved. The data on 346053 sequences corresponded to 7-fold of the genome size. The DNA sequence (comprising 10044 bases) of both ends of the cosmid DNA clone was subjected to a homology searching by a homology searching algorithm to S.cerevisiae genome sequence. The DNA sequence of cosmid was classified into a DNA sequence group showing not less than 94% identity to the genomic DNA sequence of S.cerevisiae and a DNA sequence group showing around 84% identity to it. The DNA sequence group showing not less than 94% identity was named a DNA sequence of an Sc type derived from S.cerevisiae and the DNA sequence group showing around 84% identity was named a DNA sequence of a non-Sc type derived from genome of closely related species.