Just found something I didn't know at all, I just need clarification.. The Bio Application Booklet says that inbreeding plants 'usually' INCREASES their vigour and uniformity?? I always thought outbreeding would increase their vigour and uniformity, not just for maize??
And also, an excerpt from the application booklet:
if two inbred lines are crossed, it will produce a hybrid that has a greater
yield and is more vigorous than either of the parental lines. This is known as hybrid
vigour. This hybrid is heterozygous for most genes, so deleterious recessive alleles
are hidden, but at the same time it inherits the lack of variability from its parents.
If a line of plant is inbred continuously, homozygosity increases right? How then is the resulting hybrid heterozygous for anything?? Or is this because the two lines are homozygous for different alleles... please help 0.0
