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Table 5 An overview of population features of phenotyping data for each trait

From: A dense SNP genetic map constructed using restriction site-associated DNA sequencing enables detection of QTLs controlling apple fruit quality

Trait

Year

Maximum

Minimum

Mean(±SD)

Distribution

Fruit weight (g)

2008

253.80

56.80

128.77 (±30.33)

non normal

2009

205.60

50.00

104.55 (±23.67)

non normal

2010

193.60

52.00

110.94 (±26.64)

non normal

2011

170.00

33.00

81.30 (±30.36)

non normal

Firmness (kg cm−2)

2010

15.67

3.84

8.78 (±1.81)

non normal

2011

12.16

5.49

8.71 (±1.39)

normal

acidity

total acid

2011

11.547

2.118

6.887 (±2.285)

normal

(mg g−1)

malic acid

2011

11.211

1.653

6.452 (±2.322)

normal

 

citric acid

2011

0.200

0.016

0.081 (±0.039)

normal

 

tartaric acid

2011

0.310

0.010

0.109 (±0.056)

non normal

 

oxalic acid

2011

0.099

0.048

0.070 (±0.011)

normal

 

acetic acid

2011

1.021

0.000

0.169 (±0.214)

non normal

 

succinic acid

2011

0.027

0.000

0.006 (±0.004)

non normal

sugar content

total sugar

2011

127.175

79.564

104.737 (±10.811)

normal

(mg g−1)

fructose

2011

68.477

33.302

51.014 (±6.854)

normal

 

glucose

2011

35.065

9.239

19.690 (±6.176)

non normal

 

sucrose

2011

61.584

11.059

34.033 (±9.765)

normal

  1. Fruit weight were measured over 4 years, fruit firmness were determined over 2 years, whereas fruit acidity and sugar content were analyzed only in 2011. Each trait values were obtained from six fruits per n seedlings (n = 1170, 2008; n = 952, 2009; n = 527, 2010; n = 106; 2011). Distributions were calculated using Shapiro-Wilk test