Science. 1975 Oct 24;190(4212):382-3.

Clades versus clones in evolution: why we have sex.

Abstract

Sexual reproduction predominates among organisms mainly because most evolutionary change is concentrated in speciation events, and asexual species cannot speciate in the normal sense. Asexual clones seldom diversify rapidly enough to overcome normal rates of extinction. In contrast, phylogenetic groups of sexual species (clades) commonly develop broad, heterogeneous adaptive zones rapidly enough to ensure survival.

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Clades versus clones in evolution: why we have sex.
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Clades versus clones in evolution: why we have sex.

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LinkOut - more resources

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Cited by 5 PubMed Central articles

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