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Table 3 Correlation between breadth of expression and level of selective pressure, dN/dS.

From: Rates of evolution in stress-related genes are associated with habitat preference in two Cardamine lineages

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 Ï„

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

**§

  1. * Spearman's P < 0.05, ** P < 0.01, *** P < 0.001, **** P < 0.0001, NS = non significant.
  2. ^ partial correlations are significant after correcting for the length of the A. thaliana orthologue.
  3. § significant after Holm-Bonferroni multiple test correction (only for stress responses, n = 10)
  4. 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 Ï„ is inversely correlated with the number (breadth) of organs at which a gene is expressed.