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Fig. 2 | BMC Evolutionary Biology

Fig. 2

From: Convergent reduction of V1R genes in subterranean rodents

Fig. 2

Convergent reduction of functional V1R genes in subterranean rodents. a Phylogenetically independent contrast (PIC) in intact V1R gene number is positively correlated with that in lifestyle code. b PIC in intact and partial V1R gene number remains positively correlated with that in lifestyle code. The lifestyle in each animal was coded as 0 (subterranean rodent) or 1 (superterranean rodent). The Spearman’s rank correlation coefficient (ρ) with a two-tailed P value was used to evaluate the association

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