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. Author manuscript; available in PMC: 2012 May 1.
Published in final edited form as: Trends Ecol Evol. 2011 Mar 11;26(5):222–228. doi: 10.1016/j.tree.2011.02.004

Figure 1 of Box 1.

Figure 1 of Box 1

The process of intralocus sexual antagonism resolved through gene duplication is shown. The columns reflect four consecutive events in time while the rows reflect the fitness of thealleles in the tissues (row A) and in the sexes and population (row B). T: fitness of the alleles in testis. S + O: fitness of the alleles in somatic tissues of both sexes and in the ovaries. Pop.: population. Black dot: fitness of the population as a rough estimate of the average fitness between both sexes. White dot: fitness of the duplicated gene B in testis. Note that no line can be represented for the fitness of gene B since gene B is not expressed in somatic tissues or the ovary. Before fixation, gene B segregates as a copy number variant (CNV). Framed in gray, we depict the time gene A is segregating the antagonistic allele.