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Table 4 Significance differences of the correlation analysis (corrected for multiple comparisons following the Bonferroni procedure) between geographical, soil pH and climatic factors and genetic diversity parameters: mean allelic richness (AR), mean observed heterozygosity (Ho) and expected heterozygosity (Hs) and inbreeding coefficient (FIS)

From: Environmental isolation explains Iberian genetic diversity in the highly homozygous model grass Brachypodium distachyon

Parameter

Latitude

Longitude

Altitude

pH

BIO3

BIO8

BIO9

AR

−0.178

0.558*

−0.353

0.559*

−0.603*

0.699*

−0.560*

Ho

0.002

0.771

−0.346

0.159

−0.240

0.386

−0.225

Hs

−0.050

0.444

−0.313

0.435

−0.451

0.231

−0.278

Na

−0.178

0.558*

−0.353

0.549*

−0.529*

0.612*

−0.566*

FIS

−0.278

−0.062

0.349

0.023

−0.603*

0.699**

−0.560*

  1. Only soil pH and the three significantly associated bioclimatic variables are shown. BIO3: Isothermality; BIO8: Mean Temperature of Wettest Quarter, BIO9: Mean Temperature of Driest Quarter
  2. *P < 0.05, **P < 0.001