Article
Cryptic variation between species and the basis of hybrid performance.
PLoS biology - 20 Jul 2010
Rosas Ulises, Barton Nick H, Copsey Lucy, Barbier de Reuille Pierre, Coen Enrico
Abstract excerpt
Crosses between closely related species give two contrasting results. One result is that species hybrids may be inferior to their parents, for example, being less fertile [1]. The other is that F1 hybrids may display superior performance (heterosis), for example with increased vigour [2]. Although various hypotheses have been proposed to account for these two aspects of hybridisation, their biological basis is...
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