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Table 2 Partial Mantel tests showing the seasonal relationships between the relative Euclidian chemical distance (for genital odorants) and MHC-based genetic distance for same-sex (MM and FF) dyads of ring-tailed lemurs

From: Genetic variation at MHC class II loci influences both olfactory signals and scent discrimination in ring-tailed lemurs

Dyad type Variable Number of unique MHC-DRB supertypes
Breeding season Nonbreeding season
SS r P SS r P
MM dyads MHC 2.309 0.408 < 0.001 0.042 −0.079 0.276
Age 0.203 0.121 0.068 0.139 0.145 0.005
Housing 0.157 0.106 0.101 0.006 −0.029 0.692
Month of collection 0.006 −0.020 0.763 0.124 0.137 0.062
FF dyads MHC 0.391 0.313 < 0.001 0.003 0.027 0.738
Age 0.001 0.014 0.872 0.008 −0.047 0.560
Housing 0.029 0.085 0.323 0.004 0.034 0.679
Month of collection 0.093 0.153 0.076 1.461 0.623 < 0.001
  1. Chemical distance is based on 203 and 338 compounds for MM and FF dyads, respectively. Tests include three socio-demographic and environmental variables as covariates. Sums of squares (SS) and partial Mantel correlation coefficients (r) with significant P values (P ≤ 0.05) are shown in bold type, whereas trending values (P ≤ 0.10) are shown in italics