回[逆]交,回交杂种( backcross的现在分词 );
Genetic Performance of Some Main Characters in Backcrossing Generations of Distant Cross between Winter Wheat and Agropyron
冬小麦与天蓝偃麦草远缘杂交的回交世代中几个主要性状的遗传表现
【 Objective 】 Single segment substitution lines ( SSSLs) each with only single chromosome segment from a donor under the same genetic background as the recipient were developed in rice by advanced backcrossing and molecular marker-assisted selection.
目的单片段代换系(SSSL)是通过高代回交和分子标记辅助选择构建的,只含有来自供体亲本的一个染色体片段,遗传背景与受体亲本相同的品系。
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