Rapid Evolution of the Mammalian HILS1 Gene and the Nuclear Condensation Process during Mammalian Spermiogenesis
Many genes associated with reproduction show rapid evolution across diverse animal groups,a result commonly due to adaptive evolution driven by positive selection (Swanson and Vacquier,2002).Different theories have been proposed to explain the elevated rates of evolution (Swanson and Vacquier,2002),including sperm competition,where sperm compete to fertilize eggs leading to the proteins in the spermatozoa adaptively evolving to increase their ability to fertilize eggs;sexual conflict,where the egg experiences a loss of fitness when sperm are too abundant;sexual selection,where eggs bind sperm carrying adaptive alleles (Palumbi,1999);and cryptic female choice (reviewed in Swanson and Vacquier,2002).
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the grant from the National Natural Science Foundation of China 31061160189
2013-04-11(万方平台首次上网日期,不代表论文的发表时间)
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