The young sperm gambit

Authors


Mike T. Siva-Jothy Department of Animal of Plant Sciences, University of Sheffield, Sheffield S10 2TN, UK.E-mail: m.siva-jothy@sheffield.ac.uk

Abstract

Thermodynamic and oxidative damage to the condensed nuclear DNA of spermatozoa may result in age-related deterioration that results in zygote death. By definition, any such spermatozoan-age effects are direct (i.e. nonheritable) and, if they occur, females may be selected to avoid such costs. This paper examines the potential of spermatozoan-age effects to provide alternative explanations for several reproductive phenomena.

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