Article
The genetic basis and fitness consequences of sperm midpiece size in deer mice.
Nature communications - 2 Dec 2016
Fisher Heidi S, Jacobs-Palmer Emily, Lassance Jean-Marc, Hoekstra Hopi E
Abstract excerpt
An extensive array of reproductive traits varies among species, yet the genetic mechanisms that enable divergence, often over short evolutionary timescales, remain elusive. Here we examine two sister-species of Peromyscus mice with divergent mating systems. We find that the promiscuous species produces sperm with longer midpiece than the monogamous species, and midpiece size correlates positively with competitive...
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