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Figure 6 | EvoDevo

Figure 6

From: Positive selection on the K domain of the AGAMOUS protein in the Zingiberales suggests a mechanism for the evolution of androecial morphology

Figure 6

Amino acid changes within positive selected sites for the two copies of the AGAMOUS ( AG ) gene across Zingiberales species. The asterisk depicts the evolution of androecial petaloidy within the Zingiberales order. Note that it also corresponds to the base of the ginger clade (in blue). Marked in yellow are the paraphyletic lineages of the banana grade. For amino acid comparisons, Musa acuminata (Musaceae), Costus spicatus (Costaceae), and Canna indica (Cannaceae) AG sequences were used. Logos for the specific codons of the banana grade (bottom) and ginger clade (top) are shown. Single-letter amino acid traditional names were used (colored boxes). On the far right, images of Canna indica fertile stamen (top; Th-theca; Pa-petaloid appendage of the stamen); Costus sp. labellum (La, middle image); and Musa basjoo flower (bottom; Fp free petal) are shown. Also, note that Musa acuminata has four AG sequences due to a subsequent whole genome duplication event after the divergence of the Musaceae lineage [45].

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ISSN: 2041-9139