Inheritance Pattern of Flavonic Compounds in Scots Pine (Pinus sylvestris L.)

1991

2 Abb., 1 Tab., 8 Lit. Ang.

Unselbständiges Werk

4683

200051250

A genetic experiment of variation of the flavonic pattern in different crosses of Pinus sylvestris is presented. Variations fall in distinct categories in crosses between two clones. Some individuals show high prodelphinidin content (> 85%) and lack taxifolin; they are regared as homozytoes tt, or T-. Clones with low prodelphinidin content and presence of taxifolin are all regarded as heterozygotes Tt, or T+. We found no clone homozygote for TT genotype, which is probably rare in the population. Crossing experiments between hterozygote Tt and homozygote tt clones give offsprings compatible with 50:50 segregation, whereas crosses between two heterozygotic clones give offsprings compativle with 75:25 segregation. Thus is suggested that one simple locus is responsible for most of the differences seen in the flavonoid patterns in Scots pine.