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Fig. 6 | BMC Plant Biology

Fig. 6

From: Early consequences of allopolyploidy alter floral evolution in Nicotiana (Solanaceae)

Fig. 6

Differences between extant and reconstructed progenitor phenotypes in floral limb shape (a) and tube length and width (b). The legend for the species depicted in (a) and (b) is shown in (b). Each extant species is represented by a convex polygon: polygon encloses the space taken up by all flower averages and the colored point represents the species mean. Reconstructed phenotypes are delineated by black points. Arrows connect the extant species mean to the reconstructed phenotype for each diploid progenitor. In (a), gray triangle represents impossible shapes where the landmarks that denote the floral tube opening cross each other, creating negative space. Thin plate splines show the extent of shape variation in the morphospace. c Distance between extant progenitor mean and reconstructed phenotype in shape and corolla tube dimensions plotted versus allopolyploid age

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