Paralogous series of species-specific genes Fam. size Protein family CDS Short description Z. rouxii 2 GL3C3673 ZYRO0C10120g no similarity Ê Ê ZYRO0F02728g some similarities with SACE YIR019C MUC1 GPI-anchored cell surface glycoprotein 2 GL3C3937 ZYRO0E10428g similar to SACE YDR539W Ê Ê ZYRO0G00198g some similarities with SACE YDR539W 2 GL3C4506 ZYRO0D16918g no similarity Ê Ê ZYRO0F11132g no similarity 2 GL3R4028 (1) ZYRO0E10340g highly similar to Aspergillus oryzae AO090012000349 Choline dehydrogenase and related flavoproteins Ê Ê ZYRO0F18634g highly similar to Aspergillus oryzae AO090012000349 Choline dehydrogenase and related flavoproteins 2 GL3R4324 (1) ZYRO0A13552g similar to Aspergillus oryzae AO090005000547 Predicted protein Ê Ê ZYRO0G22572g similar to Aspergillus oryzae AO090005000547 Predicted protein 3 GL3C3802 ZYRO0C01100g some similarities with SACE YML111W BUL2 Component of the Rsp5p E3- ubiquitin ligase complex ZYRO0C05874g some similarities with SACE YML111W BUL2 Component of the Rsp5p E3- ubiquitin ligase complex Ê Ê ZYRO0C05896g some similarities with SACE YML111W BUL2 Component of the Rsp5p E3- ubiquitin ligase complex 3 GL3C4103 ZYRO0C18326g some similarities with SACE YPR065W ZYRO0F15796g no similarity Ê Ê ZYRO0F18546g no similarity 5 GL3C3825 ZYRO0A10868g no similarity ZYRO0D09658g no similarity ZYRO0E04774g no similarity ZYRO0G10230g no similarity Ê Ê ZYRO0G10692g no similarity 10 GL3R0925 ZYRO0A00154g no similarity ZYRO0A00264g no similarity ZYRO0A11374g no similarity ZYRO0A13838g no similarity ZYRO0A13904g no similarity ZYRO0B00132g no similarity ZYRO0C00220g no similarity ZYRO0E00308g no similarity ZYRO0F05434g no similarity Ê Ê ZYRO0G00154g no similarity 20 GL3R0233 ZYRO0A00132g some similarities with SACE YKL219W COS9 ZYRO0A00198g some similarities with SACE YJR161C COS5 ZYRO0A00242g some similarities with SACE YHL044W Putative integral membrane protein, member of DUP240 gene family ZYRO0A11198g no similarity ZYRO0A11242g no similarity ZYRO0A11286g no similarity ZYRO0A11308g no similarity ZYRO0A11352g no similarity ZYRO0A13860g no similarity ZYRO0A13926g no similarity ZYRO0B00110g no similarity ZYRO0B17006g weakly similar to SACE YGL051W MST27 and YAR033W MST28 Putative integral membrane proteins, involved in vesicle formation; member of DUP240 gene family ZYRO0C00198g some similarities with SACE YKL219W COS9 ZYRO0D00176g no similarity ZYRO0D00220g no similarity ZYRO0D00264g no similarity ZYRO0E00286g no similarity ZYRO0F05368g no similarity ZYRO0F05412g some similarities with SACE YHL048W COS8 Ê Ê ZYRO0G00132g some similarities with SACE YKL219W COS9 K. thermotolerans 2 GL3C4023 KLTH0F00110g conserved hypothetical protein Ê Ê KLTH0F19954g conserved hypothetical protein 2 GL3C4283 KLTH0B05060g conserved hypothetical protein Ê Ê KLTH0E14938g conserved hypothetical protein 2 GL3R3968 KLTH0B10164g conserved hypothetical protein Ê Ê KLTH0E00286g conserved hypothetical protein 2 GL3R3973 KLTH0A00462g some similarities with SACE YDR400W URH1 uridine nucleosidase (uridine ribohydrolase) Ê Ê KLTH0E00154g conserved hypothetical protein 2 GL3R4294 KLTH0F00132g conserved hypothetical protein Ê Ê KLTH0F19932g conserved hypothetical protein 4 GL3R3887 KLTH0C07700g conserved hypothetical protein KLTH0C07722g conserved hypothetical protein KLTH0F12276g conserved hypothetical protein Ê Ê KLTH0H12914g conserved hypothetical protein 5 GL3C0059 KLTH0B10318g no similarity KLTH0B10428g no similarity KLTH0D00132g no similarity KLTH0G00132g no similarity Ê Ê KLTH0G00396g conserved hypothetical protein 5 GL3R3664 KLTH0A07810g highly similar to SACE YJL213W KLTH0B00264g highly similar to SACE YJL213W KLTH0C11968g highly similar to SACE YJL213W KLTH0E16874g highly similar to SACE YJL213W Ê Ê KLTH0H00132g highly similar to SACE YJL213W S. kluyveri 2 GL3C3704 SAKL0E01848g no similarity Ê Ê SAKL0H17578g no similarity 2 GL3R4319 SAKL0F09944g no similarity Ê Ê SAKL0H01408g no similarity 3 GL3C0410 SAKL0E05324g weakly similar to Candida glabrata CAGL0B02926g SAKL0E05346g weakly similar to Candida glabrata CAGL0B02926g Ê Ê SAKL0H24090g weakly similar to Candida glabrata CAGL0D00286g 3 GL3C4061 SAKL0A10582g conserved hypothetical protein SAKL0A10648g some similarities with SACE YPR015C Ê Ê SAKL0D15136g some similarities with SACE YPR015C 3 GL3R4027 (1) SAKL0B00110g no similarity SAKL0C14080g no similarity Ê Ê SAKL0E00110g some similarities with Xylella fastidiosa XF_0626 4 GL3C3889 SAKL0C03872g no similarity SAKL0C03916g no similarity SAKL0C10648g weakly similar to SACE YPR065W Heme-dependent repressor of hypoxic genes Ê Ê SAKL0D09922g conserved hypothetical protein 6 GL3R3665 (1) SAKL0B01782g similar to Yellowstone A-Prime CYA_2439 ISSoc2 resolvase SAKL0B05940g similar to Caldicellulosiruptor saccharolyticus DSM 8903 CsacDRAFT_1700 Regulatory protein MerR SAKL0G04686g similar to Caldicellulosiruptor saccharolyticus DSM 8903 CsacDRAFT_1700 Regulatory protein MerR SAKL0H03674g weakly similar to Yellowstone A- Prime CYA_2425 ISSoc2 resolvase SAKL0H06314g similar to Yellowstone A-Prime CYA_2425 ISSoc2 resolvase Ê Ê SAKL0H06600g similar to Synechococcus sp. (strain JA-3-3Ab) (Cyanobacteria bacterium Yellowstone A-Prime) ISSoc2 resolvase K. lactis 2 GL3C4579 KLLA0A11957g conserved hypothetical protein Ê Ê KLLA0C19063g conserved hypothetical protein 2 GL3R4112 KLLA0D06193g conserved hypothetical protein Ê Ê KLLA0E04599g no similarity 3 GL3C3955 KLLA0B14531g conserved hypothetical protein KLLA0C00330g conserved hypothetical protein Ê Ê KLLA0C03113g Kluyveromyces lactis KLLA0C03113g Sla2 protein 3 GL3R4104 KLLA0A12001g no similarity KLLA0B00220g conserved hypothetical protein Ê Ê KLLA0D00209g conserved hypothetical protein 7 GL3C3543 KLLA0A00143g conserved hypothetical protein KLLA0B00166g conserved hypothetical protein KLLA0C00154g conserved hypothetical protein KLLA0D00157g conserved hypothetical protein KLLA0D19987g conserved hypothetical protein KLLA0E00155g no similarity Ê Ê KLLA0F00176g no similarity 7 GL3R3212 KLLA0A00154g conserved hypothetical protein KLLA0B00187g conserved hypothetical protein KLLA0C00176g no similarity KLLA0D00187g no similarity KLLA0D19965g conserved hypothetical protein KLLA0E00177g no similarity Ê Ê KLLA0F00220g no similarity A. gossypii 2 GL3C4268 ERGO0D00110g no similarity Ê Ê ERGO0G00132g no similarity 3 GL3R3997 ERGO0D00308g no similarity ERGO0E18722g no similarity Ê Ê ERGO0F20900g no similarity The table indicates the series of dispersed paralogs specific to one of the protoploid yeasts with no clearcut homolog in the other species. (1) putative cases of lateral gene transfers that will be published elsewhere (Rolland et al. submitted). 1