PowerPoint Presentation - The American Chestnut FoundationŐs Breeding Program

Conclusions

ĄTwo progeny per B3 family gives lower inbreeding than one

ĄAt least nine to ten B3-F2 progeny are needed per B3 family to capture most alleles

ĄIf each of those nine to ten sets of B3-F2 progeny is segregated in a separate orchard, inbreeding at F4 is reduced

ĄInbreeding is not strongly affected by available Ňmating designs,Ó in part because we use open pollination

ĄThe American Chestnut FoundationŐs breeding program will yield adequate effective population sizes (although the projections have a number of assumptions that will not hold true, decreasing the projected Ne)