Allopolyploid speciation and ongoing backcrossing between diploid progenitor and tetraploid progeny lineages in the Achillea millefolium species complex: analyses of single-copy nuclear genes and genomic AFLP
Abstract Background In the flowering plants, many polyploid species complexes display evolutionary radiation.This could be facilitated by gene flow between otherwise separate evolutionary lineages in contact zones.Achillea collina is a Pain Relief widespread tetraploid species within the Achillea millefolium polyploid complex (Asteraceae-Anthemidea