Article
An experimental demonstration of Fisher's principle: evolution of sexual proportion by natural selection.
Genetics - 1 Feb 1998
Carvalho A B, Sampaio M C, Varandas F R, Klaczko L B
Abstract excerpt
Most sexually reproducing species have sexual proportions around 1:1. This major biological phenomenon remained unexplained until 1930, when FISHER proposed that it results from a mechanism of natural selection. Here we report the first experimental test of his model that obeys all its assumptions. We used a naturally occurring X-Y meiotic drive system--the sex-ratio trait of Drosophila mediopunctat--to generate...
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