4 ms·
The rare thornless mutation got reversed when the trees cross-breeded.
by rini17 8y ago
The rare thornless mutation got reversed when the trees cross-breeded.
- mohaine 8y agoTrees were being grafted from varieties with thorns. Once the top died the roots would shoot up a sprout that could breed thorns. There was also cross breeding with other thorn less varieties but I believe this was mostly after the damage had been done.