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SSR标记定位一个新的小麦白粉病抗性基因

DOI: 10.7668/hbnxb.2008.05.028, PP. 127-130

Keywords: 小麦,白粉病,抗性基因,SSR

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Abstract:

来源于簇毛麦与普通小麦杂交后代的稳定小麦品系101-3含有1个新的抗白粉病显性基因,暂命名为PmX,用单体分析的方法已定位于染色体6B上。以感白粉病小麦品种中国春与101-3杂交后代F2为材料,用65对6B染色体上和9对6A染色体上小麦微卫星引物,进行连锁分析,发现小麦微卫星标记Xgwm570与基因的遗传距离为(9.72±2.0)cM,该结果表明,该基因位于小麦染色体6BL上,同时也为分子标记辅助育种上利用该基因提供了初步的选择标记。

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