Table S1 Traits used for association analysis of UBL5 genotypes in European wild boar x Meishan (WxM) F2 family. Trait group Definition of traits Growth and fattening Birth weight (kg/10) 21-day weight (kg/10) 35-day weight (kg/10) Daily gain (g/day) Average daily weight gain in the fattening period, 110–210 days of age Live weight at slaughter (kg) Body weight at day of slaughter (210 days of age) after 18 h fasting Carcass weight (kg) Weight of carcass with kidneys, 24 h after slaughter, cold Food conversion ratio (kg/kg) Weight of consumed food per live weight gain in the fattening period (110–210 days of age) Food consumption (kg) Food consumed during fattening period Fat deposition (at 210 days of age) Abdominal fat weight (kg) Ham external fat weight (kg) Shoulder external fat weight (kg) Back fat weight (kg) Loin and neck external fat weight Fat cuts (%) Weight of external fat from ham, shoulder, loin, neck as well as abdominal fat, as proportion of carcass weight Back fat depth on m.l.l.t. at 13th/14th rib (mm) Average of three measurements at three points (lateral to the cutting line of chops) Shoulder fat depth (mm) Depth of fat and skin on muscle, average of three measurements, at thickest point Fat depth at 10th rib (mm) Depth of fat and skin on muscle, average of three measurements, at thinnest point Loin fat depth (mm) Depth of fat and skin on muscle, average of three measurements, at thinnest point Average back fat depth (mm) Mean value of shoulder fat depth, fat depth at about 10th rib and loin fat depth Fat area on m.l.l.t. at 13th/14th rib (cm2) Back fat area (according to Herbst 1980) Muscling (at 210 days of age) Ham weight (kg) Weight of ham including bones and external fat Ham meat weight (kg) Weight of ham without external fat Shoulder meat weight (kg) Weight of shoulder without external fat Loin and neck meat weight (kg) Weight of loin and neck without external fat Lean cuts (%) Weight of fillet, ham, shoulder, neck and chops, without external fat, as proportion of carcass weight Dressing A (%) Weight of ham meat relative to carcass weight Dressing B (%) Weight of ham including bone relative to carcass weight Meat area on m.l.l.t. at 13th/14th rib (cm2) Meat area according to Herbst (1980) 1 Meat quality and stress resistance pH1 m.l.l.t. (Apart from CK20-value, two repeated pH-value 45 min post-mortem in m.l.l.t. between 13th/14th rib measurements per trait in carcass; at pHU m.l.l.t. 210 days of age) pH-value 24 h post-mortem in m.l.l.t. between 13th/14th rib pH1 m. sm. pH-value 45 min post-mortem in m. sm. pHU m. sm. pH-value 24 h post-mortem in m. sm. Conductivity1 m.l.l.t. (mS/cm) Conductivity 45 min post-mortem in m.l.l.t. between 13th/14th rib Conductivity2 m.l.l.t. (mS/cm) Conductivity 24 h post-mortem in m.l.l.t. between 13th/14th rib Conductivity1 m. sm. (mS/cm) Conductivity 45 min post-mortem in m. sm. Conductivity2 m. sm. (mS/cm) Conductivity 24 h post-mortem in m. sm. Stiffness (units, according to Sybesma 1966) Measurement in m. sm. 45 min post-mortem Meat colour (%) 24 h post-mortem in m.l.l.t. between 13th/14th rib, five repeated measurements at different points (Opto-Star adjusted using standard of Matthäus, Pöttmess) CK20-value (log10 U/ml) Creatine phosphokinase activity in plasma measured after defined stress (0.5 ml of 2 mg/ml neostigmine bromide and 2 mg/ml atropine sulphate), at 20 kg of body weight Cooling loss (%) Difference between warm carcass weight (1 h after slaughter) and cold carcass weight (24 h after slaughter) as percentage of warm carcass weight Glycolytic Potential (GP) Measured as lactate equivalents (GP = LAKTAT + 2(GLYK + G1P + G6P) according to Monin & Sellier (1985) R-value Degree of deamination of adenosine (100 µ of supernatants were diluted with 2.5 ml of 1000 mM sodium phosphate buffer, pH 7.0. Then the absorbance at 250 and 260 nm was measured and the quotient A250/A260 was calculated according to Honikel & Fisher 1977) Other traits (at 210 days of age) Weight of heart (g) Weight of liver (g) Dressing yield (%) Chilled carcass weight relative to live weight Weight of head (kg) Separated from carcass at the second cervical vertebra Fat-to-meat ratio Fat area in relation to meat area at 13th/14th rib Carcass length (cm) Length of carcass from second cervical vertebra to pelvis m.l.l.t. = m. longissimus lumborum et thoracis; m. sm. = m. semimembranosus References: Herbst K (1980) Entwicklung, Stand und Perspektiven der Schweineproduktion in der Bundesrepublik Deutschland. Zuchtungskunde 52:304–323 Honikel KO, Fischer C (1977) Eine Schnellmethode zur Bestimmung von PSE- und DFD Fleisch beim Schwein. Fleischwirtschaft 57:1015–17 Monin G, Sellier P (1985) Pork of low technological quality with a normal rate of muscle pH falling the immediate post-mortem period: the case of the Hampshire breed. Meat Sci 13:49–63 Sybesma W (1966) Die Messung des Unterschiedes im Auftreten der Rigor mortis im Schinken. Fleischwirtschaft 46:637–639 2 Table S2. Overall means and phenotypic standard deviation (SD) of Age at slaughter (independent trait) and 5 dependent traits studied in entire population and females of Meishan x Large White (MLW) cross. Trait N1 Mean SD Minimum Maximum Age at slaughter (days) Weight at the end of test (kg) Lifetime daily gain (g) Test time daily gain (g) Loin depth (mm) Back fat depth (mm) 565 565 565 565 565 565 144.91 81.31 560.69 781.02 45.07 16.88 3.98 10.34 65.90 110.44 6.24 4.17 134.00 60.80 417.93 457.90 26.12 5.94 155.00 119.30 784.87 1155.88 68.68 36.98 1 Genotyping of some animals was not successful and therefore numbers of animals in association tests are different. 3 Table S3 Associations of the FR798948:g.2788G>A and FR798948:g.2141T>C within the UBL5 gene with phenotypic traits in European wild boar x Meishan F2 population at nominal P < 0.05. Y Locus/Trait F test F value P value Adj. P LSmeans ± SE P (t test) GG n = 153 GA n = 171 AA n = 10 GG vs.GA GA vs. AA GG vs. AA 3.02 2.97 2.75 2.52 2.14 30.76 ± 0.59 25.56 ± 0.60 2.17 ± 0.06 38.67 ± 0.68 2.173 ± 0.07 32.99 ± 0.56 27.86 ± 0.57 2.35 ± 0.06 40.94 ± 0.66 2.39 ± 0.07 34.96 ± 2.03 29.32 ± 2.05 2.73 ± 0.21 43.81 ± 2.35 2.69 ± 0.24 0.0015** 0.0012** 0.0126* 0.0052** 0.0092** 0.3379 0.4834 0.0661 0.2290 0.2335 0.0451* 0.0759 0.0084** 0.0342* 0.0412* 0.0866 2.13 28.03 ± 0.64 30.14 ± 0.61 31.71 ± 2.19 0.0052** 0.4813 0.1032 0.0147* 0.0154* 0.0281* 0.0331* 0.0866 0.0866 0.1241 0.1241 1.99 2.60 1.59 1.49 30.66 ± 0.77 1.00 ± 0.03 22.84 ± 0.31 23.79 ± 0.58 33.10 ± 0.74 1.07 ± 0.03 23.73 ± 0.30 25.18 ± 0.56 35.27 ± 2.64 1.23 ± 0.09 24.25 ± 1.08 28.04 ± 1.99 0.4190 0.0751 0.6406 0.1587 0.0910 0.0150* 0.1883 0.0396 3.53 3.53 0.0304* 0.0305* 0.1241 0.1241 1.54 1.54 69.36 ± 1.25 53.36 ± 1.06 72.26 ± 1.20 55.66 ± 1.02 79.00 ± 4.31 0.0511 61.88 ± 3.65 0.0674 0.1234 0.0936 0.0304* 0.0240* 3.29 3.13 0.0384* 0.0449* 0.1329 0.1443 1.37 1.30 7.10 ± 0.13 39.74 ± 0.33 7.35 ± 0.12 38.78 ± 0.32 8.15 ± 0.45 0.0994 38.50 ± 1.15 0.0151 0.0817 0.8099 0.0238* 0.2930 TT n = 84 TC n = 170 CC n = 80 TT vs.TC TC vs.CC TT vs. CC 1.11 ± 0.03 41.58 ± 0.87 33.32 ± 0.75 2.47 ± 0.09 2.41 ± 0.08 27.81 ± 0.76 1.03 ± 0.03 39.94 ± 0.65 32.03 ± 0.57 2.28 ± 0.07 2.28 ± 0.06 27.10 ± 0.57 1.01 ± 0.03 38.60 ± 0.87 30.81 ± 0.76 2.18 ± 0.09 2.16 ± 0.08 25.45 ± 0.76 0.0190* 0.0875 0.1212 0.0594 0.1141 0.3596 0.6720 0.1720 0.1494 0.3069 0.1834 0.0546 0.0181* 0.0086** 0.0105* 0.0130* 0.0128* 0.0172* FR798948:g.2788G>A Fat deposition Average back fat depth (mm) Fat depth at 10th rib (mm) Ham external fat weight (kg) Shoulder fat depth (mm) Back fat weight (kg) 6.03 5.94 5.49 5.18 4.60 0.0027** 0.0029** 0.0045** 0.0061** 0.0108* 0.0653 0.0653 0.0675 0.0686 0.0866 Loin fat depth (mm) 4.52 0.0116* Back fat depth on m.l.l.t. at 13th/14th rib (mm) Shoulder external fat weight (kg) Fat cuts (%) Fat area on m.l.l.t. at 13th/14th rib (cm2) 4.28 4.23 3.61 3.44 Growth and fattening Live weight at slaughter (kg) Carcass weight (kg) Muscling (at 210 days) Ham weight (kg) Lean cuts (%) FR798948:g.2141T>C Fat deposition (at 210 days of age) Shoulder external fat weight (kg) Shoulder fat depth (mm) Average back fat depth (mm) Back fat weight (kg) Ham external fat weight (kg) Fat depth at 10th rib (mm) PV (%) 3.56 3.53 3.32 3.28 3.15 3.07 0.0295* 0.0305* 0.0374* 0.0390* 0.0441* 0.0478* 0.2936 0.2936 0.2936 0.2936 0.2936 0.2936 1.30 1.54 1.42 1.25 1.25 1.26 0.0075** 0.0403* 0.0106* 0.0439* For each genotype, the estimated least square means using GLM procedure and SE are given. for nominal *P < 0.05, ** P < 0.01, adj. P is P value adjusted for multiple testing [21], PV (%) is the percentage of the error variance reduction obtained by including genotype information in the initial model without genetic component. 4