After four backcrosses and one selfing, five lines with genetic backgrounds similar to Zhenshan 97B but different BLS-resistant segments introgressed from Acc8558 were created.

• 通过4次回交和1次自交；育成了5个遗传背景基本上与珍汕97B相同；导入了来自Acc8558的不同抗病区段的株系.