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小麦赤霉病与DON积累的抗性及其相关SSR位点差异 被引量:16

Resistance to Fusarium Head Blight and Deoxynivalenol Accumulation and Allele Variation of Related SSR Markers in Wheat
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摘要 以禾谷镰刀菌(FusariumgraminearumSchwabe)菌株进行穗部喷雾和单花滴注接种,评价了10个小麦抗源的赤霉病和脱氧雪腐镰刀菌烯醇(DON)积累抗性。结果表明,望水白、苏麦3号、延岗坊主、繁60096属于高抗品种,Frontana表现感病,其余品种表现中抗。除Frontata外,所有抗源DON含量在3mg/kg以下。不同接种方法间、不同致病菌株间的病小穗率和DON含量以及同一处理内的病小穗率和DON含量间呈极显著相关。利用与已报道的赤霉病抗性QTL相关SSR引物对供试材料进行PCR扩增,比较扩增产物等位位点的差异,除4B染色体的GWM113标记外,其余标记在品种间具有2~8个等位位点,多态信息含量为0.14~0.85。单倍型分析表明,延岗坊主具有与望水白一致的3B主效QTL的SSR标记位点,扬麦158和新中长分别在2D和4B上具有多个与武汉1号一致的抗性QTL相关SSR位点,翻山小麦在3B和6B上具有多个与苏麦3号或望水白一致的抗性QTL相关SSR位点,繁60096在2D上有多个与武汉1号一致的QTL相关SSR标记,而镇麦7459和温州红和尚与已报道的小麦赤霉病抗性多数SSR位点不一致,可能具有不同的抗性基因。 Fusarium head blight(FHB),caused by Fusarium graminearum Schwabe,is an important worldwide wheat disease.Negative effects of the disease include not only reduction of grain yield quality,but also contamination with deoxynivalenol(DON)resulting in potential toxicity to human and livestock.Developing cultivars with FHB resistance is an effective measure to control the disease.Ten cultivars selected from the breeding program for FHB resistance in China were employed in the study for evaluating the resistance t...
出处 《作物学报》 CAS CSCD 北大核心 2006年第12期1788-1795,共8页 Acta Agronomica Sinica
基金 国家高技术研究发展计划(863计划)(2003AA211040 2002AA207003) 科技部国际合作重点项目(2004DFA01100)
关键词 小麦 赤霉病 脱氧雪腐镰刀菌烯醇(DON) SSR Triticum aestivum L. Fusarium head blight Deoxynivalenol(DON) SSR
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