| 粗山羊草Y189抗小麦白粉病基因SSR标记 |
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| 引用本文： | 张海泉.粗山羊草Y189抗小麦白粉病基因SSR标记[J].河南大学学报(自然科学版),2007,37(2):177-180. |
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| 作者姓名： | 张海泉 |
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| 作者单位： | 河北经贸大学,生物科学与工程学院,河北,石家庄,050061 |
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| 基金项目： | 河北省科技厅河北省科学技术研究与发展指导计划“微卫星标记小麦野生资源抗病基因及抗病基因的利用”(05225510)，河北省教育厅科学研究计划项目“微卫星标记小麦抗白粉病基因”(Z20006103) |
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| 摘 要： | 从粗山羊草Aegilops tauschii(Coss.)Schmal]Y189中鉴定出1个显性抗小麦白粉病基因,暂定名为PmAe Y2.应用分离群体分组法(BSA)筛选到Xgwm583-5D、Xgwm174-5D、Xgwm182-5D和Xgwm271-5D标记与该基因之间的遗传距离分别为25.7、16.7、9.1和7.0 cM.根据连锁标记所在小麦微卫星图谱的位置,PmAe Y2被定位在5DL染色体上.分析基因所在染色体的位置、抗病性特征认为PmAe Y2是一个新的抗白粉病基因,并可用于分子标记辅助选择.
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| 关 键 词： | 粗山羊草 小麦白粉病 抗病基因 SSR标记 |
| 文章编号： | 1003-4978（2007）02-0177-04 |
| 修稿时间： | 2006-10-20 |
SSR Markers Linked to a Powdery Mildew Resistance Gene in Aegilops tauschii Y189 |
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| ZHANG Hai-quan.SSR Markers Linked to a Powdery Mildew Resistance Gene in Aegilops tauschii Y189[J].Journal of Henan University(Natural Science),2007,37(2):177-180. |
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| Authors: | ZHANG Hai-quan |
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| Institution: | College of Biological Science and Engineering, Hebei University of Economics and Business, Shijiazhuang 050061 , China |
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| Abstract: | A dominant powdery mildew resistance gene,temporarily designated as PmAeY2,was identified in an accession Y189 of Aegilops tauschii.By bulk segregation analysis,four microsatellite markers Xgwm583-5D,Xgwm174-5D,Xgwm182-5D and Xgwm271-5D were found to be linked to PmAeY2 with genetic distances of 25.7,16.7,9.1 and 7.0 cM,respectively.According to the locations of the linked markers,the resistance gene was located on chromosome 5DL.Based on the chromosomal location and the resistance pattern of the gene,we propose that PmAeY2 is a novel powdery mildew resistance gene,and can be selected by marker-assisted selection. |
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| Keywords: | Aegilops tauschii wheat powdery mildew resistance genes SSR marker |
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