January 21, 2021 Dataset Open Access

Richardson, Jon; Heinen-Kay, Justa; Zuk, Marlene

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    <subfield code="a">Data from: Sex-specific associations between life history traits and a novel reproductive polymorphism in the Pacific field cricket</subfield>
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    <subfield code="a">&lt;p&gt;Associations between heritable polymorphisms and life-history traits, such as development time or reproductive investment, may play an underappreciated role in maintaining polymorphic systems. This is because selection acting on a particular morph could be bolstered or disrupted by correlated changes in life-history or vice versa. In a Hawaiian population of the Pacific field cricket (&lt;em&gt;Teleogryllus oceanicus&lt;/em&gt;), a novel mutation (flatwing) on the X-chromosome is responsible for a heritable polymorphism in male wing structure. We used laboratory cricket colonies fixed for male wing morph to investigate whether males and females bearing the flatwing or normal-wing (wild-type) allele differed in their life-history traits. We found that flatwing males developed faster and had heavier testes than normal-wings, whereas flatwing homozygous females developed slower and had lighter reproductive tissues than normal-wing homozygous females. Our results advance our understanding of the evolution of polymorphisms by demonstrating that the genetic change responsible for a reproductive polymorphism can also have consequences for fundamental life-history traits in both males and females.&lt;/p&gt;</subfield>
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