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. 2014 Feb 17;15:25. doi: 10.1186/1471-2156-15-25

Table 2.

Results of significant 1 marker associations with milk fatty acid isomers (g/100 g of total fat) of Canadian Holstein cows

Trait
 
SNP 2
Means of genotypes 3
 
 
 
Max SEM 4 P-value
FDR 5
Fatty acid Common name Lab Id rs# CC CT TT AA AG GG  
  P-value
Polyunsaturated fatty acids
 
 
 
 
 
 
 
 
 
 
 
C18:2n10t12c
CLA: 10t12c
FADS2-19
rs210169303
0.024a
0.023ab
0.021b
-
-
-
0.001
0.027
0.189
C18:2n6tt
Trans linoleic acid
FADS1-07
rs42187261
0.158ab
0.157a
0.170b
-
-
-
0.006
0.034
0.176
 
 
FADS2-19
rs210169303
0.165a
0.158ab
0.147b
-
-
-
0.008
0.050
0.176
C20:3n6
Dihomogamma linolenic acid
FADS1-01
rs136261927
0.095a
0.087b
0.075b
-
-
-
0.007
0.0003
0.002
 
FADS1-07
rs42187261
0.090ab
0.089a
0.096b
-
-
-
0.003
0.024
0.056
 
 
FADS2-23
rs109772589
-
-
-
0.089a
0.096b
0.108b
0.007
0.001
0.003
C20:4n6
Arachidonic acid
FADS1-07
rs42187261
0.114a
0.116a
0.122b
-
-
-
0.003
0.021
0.074
 
 
FADS2-23
rs109772589
-
-
-
0.115a
0.123b
0.126ab
0.007
0.002
0.013
C20:5n3
Eicosapentaenoic acid
FADS1-07
rs42187261
0.036ab
0.033a
0.037b
-
-
-
0.001
0.004
0.029
Monounsaturated fatty acids
 
 
 
 
 
 
 
 
 
 
C14:1 t
Myristelaidic acid
FADS2-23
rs109772589
-
-
-
0.247ab
0.259a
0.213b
0.019
0.029
0.204
C18:1 total
 
FADS1-07
rs42187261
24.458a
24.439a
23.106b
-
-
-
0.544
0.012
0.084
C18:1n9c
Oleic acid
FADS1-07
rs42187261
21.419a
21.374a
20.089b
-
-
-
0.520
0.011
0.074
Total MUFA
 
FADS1-07
rs42187261
30.598a
30.669a
29.207b
-
-
-
0.620
0.019
0.131
Saturated fatty acids
 
 
 
 
 
 
 
 
 
C8:0
Caprylic acid
FADS1-07
rs42187261
0.876a
0.883a
0.921b
-
-
-
0.020
0.043
0.301
C11:0
Undecanoic acid
FADS1-07
rs42187261
0.217a
0.221a
0.238b
-
-
-
0.007
0.017
0.116
C15:0
Pentadecylic acid
FADS1-08
rs41652284
1.147a
1.098a
1.262b
-
-
-
0.058
0.010
0.072
C17:0
Margaric acid
FADS1-08
rs41652284
0.669ab
0.658a
0.698b
-
-
-
0.016
0.031
0.219
C23:0
Tricosanoic acid
FADS1-07
rs42187261
0.024a
0.023a
0.028b
-
-
-
0.001
0.002
0.011
Total SFA   FADS1-07 rs42187261 66.155ab 66.051a 67.542b - - - 0.638 0.021 0.147

1For significant associations, P-values and FDR P-values (P≤0.05) are shown.

2Lab Id = lab notation of SNPs, rs# = SNP data base identification number of SNPs.

3For each trait, genotype means (g/100 g of total fat) with different superscripts differ significantly (P ≤ 0.05). Genotype frequencies are listed in Table 2.

4Maximum standard error of the mean.

5FDR = False discovery rate.