Table 4 |
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|
Correlation between level of selective pressure dN/dS and level of gene expression |
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|
C. impatiens |
C. resedifolia |
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|
|
|
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|
Gene FCa |
nb |
mean (SE)c |
ρd |
Pd |
ρd |
Pd |
|
|
|
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|
Mean Expression |
|||||||
|
All genes |
2922 |
8.72 (0.03) |
-- |
-0.249 |
**** |
-0.297 |
**** |
|
Cold response (CRG) |
55 |
8.49 (0.21) |
NS |
-0.363 |
** |
-0.310 |
* |
|
Cold (CGO) |
56 |
10.16 (0.22) |
**** |
-0.199 |
NS |
-0.251 |
NS |
|
Photosynthesis (PGO) |
67 |
10.29 (0.21) |
**** |
-0.203 |
NS |
-0.365 |
** |
|
Stress (SGO) |
332 |
9.69 (0.09) |
**** |
-0.221 |
**** |
-0.209 |
*** |
|
Maximum Expression |
|||||||
|
All genes |
2922 |
11.02 (0.03) |
-- |
-0.185 |
**** |
-0.246 |
**** |
|
Cold response (CRG) |
55 |
12.51 (0.20) |
**** |
-0.126 |
NS |
-0.190 |
NS |
|
Cold (CGO) |
56 |
13.06 (0.24) |
**** |
-0.184 |
NS |
-0.097 |
NS |
|
Photosynthesis (PGO) |
67 |
12.97 (0.21) |
**** |
-0.198 |
NS |
-0.367 |
** |
|
Stress (SGO) |
332 |
12.26 (0.10) |
**** |
-0.083 |
NS |
-0.100 |
NS |
|
|
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|
* Spearman correlation P < 0.05, ** P < 0.01, *** P < 0.001, **** P < 0.0001, NS = non significant. a Gene functional class. b Number of genes. c Mean/maximum expression was estimated for all genes and genes included in each functional class and tested (Wilcoxon test) against mean for genes not in that functional class. d Spearman's correlation between level of gene expression and ω estimated along the two Cardamine lineages. |
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|
Ometto et al. BMC Evolutionary Biology 2012 12:7 doi:10.1186/1471-2148-12-7 |
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