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. 2019 May 8;5(5):eaau3753. doi: 10.1126/sciadv.aau3753

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Copyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

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Fig. 1 — (A) The activity of dsx in sex-determination pathways illustrated in a representative genus of each insect order. (B) Examples of sexual weapons (large mandibles and horns in male beetles), sexual ornaments (sex combs in male Drosophila), large wings associated with dispersal in female Nasonia, and female-limited mimetic polymorphism in swallowtail butterflies that are developmentally regulated by dsx (12, 13, 15). (C) Developmental outcomes regulated by dsx fall into three broad functional categories apart from early embryonic sexual differentiation. masc, masculinizer; fem, feminizer. [Photo credit: N. Gompel (Drosophila melanogaster), A. P. Moczek (Onthophagus taurus), R. R. Choudhury (Nasonia vitripennis), and M. Yago (Cyclommatus metallifer and Trypoxylus dichotomous), used with permission, and K. Kunte (P. polytes)].