期刊
CONSERVATION BIOLOGY
卷 24, 期 5, 页码 1190-1197出版社
WILEY
DOI: 10.1111/j.1523-1739.2010.01524.x
关键词
conservation; evolutionary potential; life history; male mutation bias; sexual selection; population size; conservacion; historia de vida; potencial evolutivo; seleccion sexual; sesgo en mutacion de machos; tamano poblacional
资金
- U.K. Natural Environment Research Council
- Swiss National Science Foundation
- Natural Environment Research Council [NE/E012620/1] Funding Source: researchfish
- NERC [NE/E012620/1] Funding Source: UKRI
The ability of a population to adapt to changing environments depends critically on the amount and kind of genetic variability it possesses. Mutations are an important source of new genetic variability and may lead to new adaptations, especially if the population size is large. Mutation rates are extremely variable between and within species, and males usually have higher mutation rates as a result of elevated rates of male germ cell division. This male bias affects the overall mutation rate. We examined the factors that influence male mutation bias, and focused on the effects of classical life-history parameters, such as the average age at reproduction and elevated rates of sperm production in response to sexual selection and sperm competition. We argue that human-induced changes in age at reproduction or in sexual selection will affect male mutation biases and hence overall mutation rates. Depending on the effective population size, these changes are likely to influence the long-term persistence of a population.
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