Sexual selection for dominant and recessive genes
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چکیده
منابع مشابه
Good genes sexual selection in nature.
Whether the mate sampling and choice performed by females in nature influences offspring performance is a controversial issue in theory and an open empirical question. Pronghorn (Antilocapra americana) females engage in an obvious and energetically expensive mate sampling process to identify vigorous males. Although individual females sample independently, their choices converge on a small prop...
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Mate choice and sexual displays are widespread in nature, but their evolutionary benefits remain controversial. Theory predicts these traits can be favored by runaway sexual selection, in which preference and display reinforce one another due to genetic correlation; or by good genes benefits, in which mate choice is advantageous because extreme displays indicate a well-adapted genotype. However...
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The defining characteristic of recessive disorders is the absence of disease in heterozygous carriers of the mutant alleles. However, it has been recognized that recessive carriers may differ from noncarriers in some phenotypes. Here, we studied ataxia telangiectasia (AT), a classical recessive disorder caused by mutations in the ataxia telangiectasia mutated (ATM) gene. We compared the gene an...
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Why are females so choosy when it comes to mating? This question has puzzled and marveled evolutionary and behavioral ecologists for decades. In mating systems in which males provide direct benefits to the female or her offspring, such as food or shelter, the answer seems straightforward--females should prefer to mate with males that are able to provide more resources. The answer is less clear ...
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Learning genetic representation has been shown to be a useful tool in evolutionary computation. It can reduce the time required to find solutions and it allows the search process to be biased towards more desirable solutions. Learning genetic representation involves the bottom-up creation of evolved genes from either original (basic) genes or from other evolved genes and the introduction of tho...
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ژورنال
عنوان ژورنال: Heredity
سال: 1963
ISSN: 0018-067X,1365-2540
DOI: 10.1038/hdy.1963.50