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Table 2 Selection on plant traits under saline and nonsaline treatments

From: The ecological genomic basis of salinity adaptation in Tunisian Medicago truncatula

Trait S- nonsaline S- saline T X E b- nonsaline b-saline T X E
Germ. age 0.215** -0.006 5.13* 0.024 -0.121* 1.78
1st trifoliate age -0.113 0.03 0 -0.421* -0.049 3.49t
1st trifoliate lifespan -0.018 0.111 1.87 0.072 0.146* 0.29
1st flowering age 0.164* 0.241** 0.93 -0.072 -0.195*** 3.45t
% early pod set -0.112 -0.129 0.61 -0.221*** -0.169** 0.34
SLA 0.046 0.038 0.01 -0.07 -0.162** 1.2
Leaflet width 0.077 0.073 0.27 0.207** 0.209*** 0
Root length 0.197** 0.112t 2.41 0.245*** 0.227*** 0.12
1-branch length -0.187** -0.152* 0.06 -0.077 0.065 3.06t
2nd branch length 0.172t 0.201 0.13 0.272*** 0.351*** 3.18t
3rd branch length 0.161t -0.023 2.48 0.297*** 0.196*** 0.6
2nd branch number -0.042 0.043 0.69 0.135 0.273*** 2.42
3 branch number 0.075 0.048 0.02 0.373*** 0.383*** 0.54
Stem diameter -0.08 0.049 2.13 -0.052 0.053 1.16
Root diameter 0.171* 0.005 3.92* 0.264*** 0.108t 2.47
Prop. reproduction 0.267*** 0.329*** 0.09 0.304*** 0.346*** 0
Root:shoot -0.035 0.007 0.38 0.181** 0.018 2.85t
LWC -0.065 -0.116t 1.18 -0.035 -0.172** 2.46
RWC TOP -0.011 -0.085 0.53 0.166* 0.124* 0.06
RWC Bottom 0.042 0.117* 0.79 0.197** 0.171** 0.01
SWC -0.043 0.027 1.65 0.064 0.057 0.12
  1. Selection differentials (S) and gradients (b) in non-saline and saline treatments, using the fitness metric relative total pod number. SLA: specific leaf area, LWC: leaf water content, RWC: root water content, SWC: stem water content. T X E: test for change in selection between saline and non-saline treatments. Significance is denoted by t: 0.10 > P > 0.05, *P < 0.05, **P < 0.01, ***P < 0.001, ****P < 0.0001. Bold values indicate significance (P < 0.05) with transformed relative total pod number.