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Table 1 ANCOVA with host, virulence index in Phase 1 (host specialization phase) and their interaction as factors and the corresponding virulence index in Phase 2 (common host phase) as variable

From: Genotypic but not phenotypic historical contingency revealed by viral experimental evolution

Factors d.f. F P
Virulence expressed on size
Host 3 43.770 <0.001
Virulence Phase 1 1 0.206 0.651
Host × Virulence Phase 1 3 0.651 0.584
Virulence expressed on weight
Host 3 11.294 <0.001
Virulence Phase 1 1 1.599 0.209
Host × Virulence Phase 1 3 1.298 0.279