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Table 2 Tuber proteins differentially expressed in genotype pool CIS-t versus pool CIS-s during 12 weeks storage at 4°C

From: Novel candidate genes influencing natural variation in potato tuber cold sweetening identified by comparative proteomics and association mapping

Spot Protein Accession no. Ratio of mean spot volume1
T0 2w 4w 12w
Protease inhibitors
2 Serine protease inhibitor 7 P30941.2 0,24 ** 0,19 ** 0,28 ** 0,28 **
4 Serine protease inhibitor 7 P30941.2 0,28 ** 0,23 ** 0,22 * 0,16 *
3 Kunitz-type enzyme inhibitor S9C11 AAL67830.1 0,37 * 0,43 ** 0,49 ** 0,6 *
6 Putative miraculin CAC40756.1 0,58 * 0,53 ** 0,62 ** 0,42 *
14 Aspartic protease inhibitor 5 P58519.1 0,69 0,37 * n.d. 0,65 *
10 Kunitz-type proteinase inhibitor AAM21645.1 0,77 0,44 ** 0,71 * 0,23 *
11 Kunitz-type proteinase inhibitor AAM21645.1 0,74 n.d. 0,24 *** n.d.
12 Kunitz-type proteinase inhibitor AAM21645.1 0,48 0,51 * 0,52 ** 0,43 **
19 Putative miraculin CAC40756.1 3,64 * 5,02 ** 2,85 ** 4,34 **
20 Cysteine protease inhibitor 1 P20347.3 n.d. 4,21 *** 2,81 *** 3,32 **
21 Proteinase inhibitor II CAA27730 1,54 2,89 ** 1,62 * 0,99
22 Proteinase inhibitor II CAA27730 1,48 2,09 * 1,45 * 1,59 **
24 Proteinase inhibitor II CAA27730 2,89 * 1,56 * 1,25 * 1,59 *
Storage proteins
1 Patatin-2-Kuras 4 Q3YJT0 0,43 * 0,39 * 0,55 *** 0,47 **
13 Patatin Group M-3 Q2MY51 0,24 0,38 ** 0,63 * 0,40 *
44 Patatin-3-Kuras 1 Q3YJS9.1 2,57 * 3,37 * 3,22 * 2,04
45 Patatin-3-Kuras 1 Q3YJS9.1 2,99 * 2,67 * 3,20 * 2,60 *
46 Patatin-3-Kuras 1 Q3YJS9.1 1,51 2,26 2,07 * 1,97
Lipid metabolism
31 Lipoxygenase X95512.1 1,42 ** 1,56 ** 1,94 ** 2,17 **
32 Lipoxygenase X95512.1 1,56 * 2,02 ** 1,65 ** 1,79 *
33 Lipoxygenase X95512.1 1,52 2,78 ** 1,73 ** 1,59 *
34 Lipoxygenase X95512.1 1,66 3,71 * 1,72 ** 1,51 *
35 Lipoxygenase X95512.1 1,45 3,90 * 1,71 * 1,65
36 Phospholipase A1 ABQ95989.1 3,20 *** 2,82 *** 7,45 ** 2,92 *
39 Phospholipase A1 ABQ95989.1 4,22 *** 2,59 *** 3,52 ** 2,76 **
40 Phospholipase A1 ABQ95989.1 3,65 ** 2,57 ** 1,59 ** 2,27 *
Glycolysis
43 Phosphoglycerate kinase ABB87110 0,79 2,29 * n.d. n.d.
Heat shock proteins
5 Chloroplast small heat shock protein class I AAQ19680.1 0,24 ** 0,23 ** 0,25 * 0,27 *
27 Heat shock protein (HSP70) XP_002512741 0,87 0,40 * n.d. 0,68 *
28 101 kDa heat shock protein AAC83688.2 0,85 1,13 0,48 ** 0,98
Proteases
47 Leucine aminopeptidase, chloroplastic P31427.2 2,35 * 2,16 ** 1,47 * n.d.
48 Leucine aminopeptidase, chloroplastic P31427.2 1,82 * 1,19 3,06 ** 2,16 *
49 Leucine aminopeptidase, chloroplastic P31427.2 1,43 1,78 ** 2,22 ** 1,66
50 Leucine aminopeptidase, chloroplastic P31427.2 n.d. n.d. 2,16 ** 1,26
Pathogenesis related proteins
17 Putative PR-10 type pathogenesis-related protein BAJ25784.1 0,39 * 0,75 0,93 0,79
Cytoskeleton
30 Actin BAK57343.1 0,47 ** 1,06 0,72 * 1,20
Unidentified proteins
7 Not identified   0,40 ** 0,57 ** 0,57 ** 0,52 **
8 Not identified   0,60 * 0,44 * 0,39 * 0,22 *
9 Not identified   0,26** 0,14** n.d. n.d.
15 Not identified   0,46 0,46 * 0,29 * 0,44 *
16 Not identified   n.d. 0,12 *** 0,09 *** 0,26 ***
18 Not identified   3,6 ** 1,73 * 1,63* 1,45
23 Not identified   3,64 * 1,62 2,04 * 3,12 **
25 Not identified   2,20 ** n.d. 2,80 ** n.d.
26 Not identified   1,72 n.d. 2,64 *** 2,69 *
29 Not identified   0,99 0,73 * 0,77 0,48 **
37 Not identified   3,96 ** 4,25 ** 4,90 ** 3,96 **
38 Not identified   3,06 * 2,85 *** 3,88 *** 2,15
41 Not identified   2,52 1,62 * 2,06 ** 2,54 *
42 Not identified   1,68 * 2,99 ** 2,78 ** n.d.
  1. 1Ratio of the mean spot volume of the CIS-t pool to the mean spot volume of the CIS-s pool. Mean spot volume was calculated from three biological replicates. The level of significance is indicated by * for 0.05 > p >0.01, ** for 0.01 > p >0.001 and *** for p <0.001.
  2. n.d. spot not detectable in 2D protein profiles.
  3. 2w, 4w and 12w corresponds to weeks of storage at 4°C.