Table 3.
Correlation between breadth of expression and level of selective pressure, dN/dS.
| Breadth typea | C. impatiens | C. resedifolia | ||
|---|---|---|---|---|
| Flower development | -0.156 | ****^ | -0.156 | ****^ |
| Leaf development | -0.115 | ****^ | -0.145 | ****^ |
| Organs | -0.131 | ****^ | -0.135 | ****^ |
| Organ specificity τ | 0.125 | ****^ | 0.113 | ****^ |
| UV-B stress | 0.061 | **§ | 0.036 | NS |
| Salt stress | 0.057 | **§ | 0.070 | ***§ |
| Osmotic stress | 0.039 | * | 0.057 | **§ |
| Drought stress | 0.050 | * | 0.032 | NS |
| Cold stress | 0.043 | * | 0.052 | **§ |
* Spearman's P < 0.05, ** P < 0.01, *** P < 0.001, **** P < 0.0001, NS = non significant.
^ partial correlations are significant after correcting for the length of the A. thaliana orthologue.
§ significant after Holm-Bonferroni multiple test correction (only for stress responses, n = 10)
a Breadth of expression can be either spatial (i.e., number of tissues in which a gene is expressed) or temporal (when a gene is expressed, during either development or stress exposure). Note that the organ-specificity index τ is inversely correlated with the number (breadth) of organs at which a gene is expressed.