Kaleb Rolly wrote:Hello,
If I were to use cuttings from this tree or grow from the seeds, what would be the chances of producing thornless offspring.
I have seen here that the thornless gene should be dominant, but that assumes a lot of things. For one, each of the flowers are going to have the possibility of a thorned gene being present and could produce throned offspring. Also, it assumes that the throned gene is completely recessive. There are some gene that are marked as recessive, but can be phenotypically present anyway, especially if it is a case of incomplete dominance. If it were a case of incomplete dominance, than even your heterozygote individuals would exhibit some thornedness, as well as the homozygous recessive individuals. I do not know the answer here, but that is something to keep in mind.
One thing you could do, if you have the time and spcae, is you could do a simple breeding experiment and collect seeds and plant them. Once the saplings are old enough to exhibit a throned trait (if they are going to), just remove all of the ones that have throns and only allow the thornless individuals to survive. This would increase the rate of this gene's trasnmission through the generations, and as long as you keep an eye on future seedlings and thin as necessary, all of your future trees should be thronless. You could even go so far as to take the pollen from thronless tree and physically pollinate other thronless trees to ensure that that is what happens (this will take much more work, but has a lower risk of throned offspring).
Hope this helps!!