Background selection of BC_2F_1 generation and BC_3F_2 generation.
3．对BC_2F_1代和BC_3F_2代的背景选择。
参考来源 - 利用分子标记辅助选育抗除草剂甘蓝型油菜PolCMS恢复系·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
In the process of markerassisted introgressing QTL, index selection method was used to make background selection.
在标记辅助导入QTL的过程中，利用指数法进行背景选择。
Compared the selective efficiency of RAPD, RFLP and AFLP markers in genetic background selection, AFLP marker was found to be the ideal one.
对实施背景选择的RAPD、RFLP和AFLP标记进行了比较，认为AFLP标记是一种理想的辅助背景选择的分子标记。
Doing foreground selection of BC_1F_1 with polymorphic locus, 161 donor segment were detected, and doing background selection and backcross for plants containing donor segment.
利用所筛选的多态性标记对BC_1F_1群体进行前景检测，检测到161个供体片段，并对含有供体片段的单株进行背景选择和回交。
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