Читать книгу Principles of Plant Genetics and Breeding - George Acquaah - Страница 188
Hybrid crosses
ОглавлениеThese are reviewed here to give the student a basis for comparison with the random mating schemes to be presented.
Single cross = A × B → F1 (AB)
3‐way cross = (A × B) → F1 × C → (ABC)
Backcross = (A × B) → F1 × A → (BC1)
Double cross = (A × B) → FAB; (C × D) → FCD; FAB × FCD → (ABCD)
These crosses are relatively easy to genetically analyze. The breeder exercises significant control over the mating structure.