2.1 QTL mapping pedigree
The 52-124 family was developed by crossing a male Populus
deltoides , ILL-101 from southern Illinois, with a female Populus
trichocarpa clone, 93-968 from western Washington State. The
F1 clone, 52-225, was then crossed with a malePopulus deltoides clone, D124 from Minnesota, to generate the
final 749 progeny in the pseudo-backcross population.