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Unexpected ancestry of Populus seedlings from a hybrid zone implies a large role for postzygotic selection in the maintenance of species

Lindtke, Dorothea ; Gompert, Zachariah ; Lexer, Christian ; Buerkle, C. Alex

In: Molecular Ecology, 2014, p. –

In the context of potential interspecific gene flow, the integrity of species will be maintained by reproductive barriers that reduce genetic exchange, including traits associated with prezygotic isolation or poor performance of hybrids. Hybrid zones can be used to study the importance of different reproductive barriers, particularly when both parental species and hybrids occur in close spatial...

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Genomic admixture analysis in european Populus spp. reveals unexpected patterns of reproductive isolation and mating

Lexer, Christian ; Joseph, Jeffrey A. ; Loo, Marcela van ; Barbará, Thelma ; Heinze, Berthold ; Bartha, Denes ; Castiglione, Stefano ; Fay, Michael F. ; Buerkle, C. Alex

In: Genetics, 2010, vol. 186, p. 699–712

Admixture between genetically divergent populations facilitates genomic studies of the mechanisms involved in adaptation, reproductive isolation and speciation, including mapping of the loci involved in these phenomena. Little is known about how pre- and postzygotic barriers will affect the prospects of 'admixture mapping' in wild species. We have studied 93 mapped genetic markers...

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