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Université de Fribourg

Admixture mapping in interspecific Populus hybrids identifies classes of genomic architectures for phytochemical, morphological and growth traits

Bresadola, Luisa ; Caseys, Céline ; Castiglione, Stefano ; Buerkle, C. Alex ; Wegmann, Daniel ; Lexer, Christian

In: New Phytologist, 2019, vol. 223, no. 4, p. 2076–2089

The genomic architecture of functionally important traits is key to understanding the maintenance of reproductive barriers and trait differences when divergent populations or species hybridize. We conducted a genome-wide association study (GWAS) to study trait architecture in natural hybrids of two ecologically divergent Populus species. We genotyped 472 seedlings from a natural hybrid zone...