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Fig. 5 | BMC Evolutionary Biology

Fig. 5

From: Oviposition traits generate extrinsic postzygotic isolation between two pine sawfly species

Fig. 5

N. pinetum females had smaller, straighter ovipositors than N. lecontei females. a A representative N. lecontei ovipositor with landmarks (black circles) and sliding landmarks (white circles) used in morphometrics analyses. b Principle components analysis of ovipositor shape of N. pinetum females (white circles) and N. lecontei females (grey circles). The warp grids represent the change in ovipositor shape along principle component axis 1. c N. pinetum has narrower ovipositors than N. lecontei. d N. pinetum has shorter ovipositors than N. lecontei. Shape (b), length (c), and width (d) differences were all significant at P < 0.05

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