Positioning of Sex-Correlated Markers for Populus in a AFLP- and SSR-Marker Based Genetic Map of Populus tremula x tremuloides

A preliminary consensus map of Populus tremula x tremuloides has been constructed from an interspecific hybrid population of 66 seedlings of the cross Brauna 11 (P. tremula) x Turresson 141 (P. tremuloides). The map was constructed based on 205 AFLP- and 29 SSR-markers covering 1875cM on 19 linkage groups. A single locus correlating to sex in Populus was mapped close to two AFLP-markers. The map will be used as a starting point for the identification of sex-related genes or molecular markers and their fine mapping based on a BAC-library screening.