| 抗白粉病基因Pm8在四川小麦中遗传表达初步研究 |
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| 引用本文： | 杨足君 任正隆. 抗白粉病基因Pm8在四川小麦中遗传表达初步研究[J]. 四川农业大学学报, 1997, 15(4): 452-456,465 |
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| 作者姓名： | 杨足君 任正隆 |
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| 作者单位： | 四川农业大学小麦研究所(杨足君)，四川农业大学植物遗传育种省级重点实验室(任正隆) |
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| 基金项目： | 四川省科委应用基础研究项目 |
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| 摘 要： | 用Ｇｉｅｍｓａ－Ｃ带技术鉴定了４８个含１ＲＳ／１ＢＬ染色体的小麦材料，并对其抗白粉病基因Ｐｍ８的遗传表达进行了初步研究。用对Ｐｍ８非毒性的小麦白粉菌系接种这些品系，结果表明：２１个小麦品系１ＲＳ／１ＢＬ染色体上的抗白粉病基因Ｐｍ８未表达，２４个具有Ｐｍ８抗性，３个品系可能含有除Ｐｍ８外的其它基因或组合。我们认为，在四川小麦中的含１ＲＳ／１ＢＬ染色体的品种（系）中Ｐｍ８基因的不表达也是白粉病流行的重要原因，在利用１ＲＳ／１ＢＬ染色体于四川小麦高产育种中应注重其抗病性，并发掘新的抗白粉病资源有重要的现实意义。
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| 关 键 词： | 1RS／1BL染色体易位 抗白粉病 基因表达 |
EXPRESSION OF GENE Pm8 FOR RESISTANCE TO POWDERY MILDEW IN WHEAT FROM SICHUAN |
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| Yang Zujun,Ren Zhenglong. EXPRESSION OF GENE Pm8 FOR RESISTANCE TO POWDERY MILDEW IN WHEAT FROM SICHUAN[J]. Journal of Sichuan Agricultural University, 1997, 15(4): 452-456,465 |
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| Authors: | Yang Zujun Ren Zhenglong |
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| Abstract: | Chromosome 1RS/1BL was widely used in Sichuan wheat breeding. 48 cultivars possessing 1RS/1BL translocation were identified by improved Giemsa-Cbanding, and the genetic expression of gene Pm8 for resistance to powdery mildewwas carried out. These cultivars were inoculated by mildew isolate which virulence has been investigated by known resisrant gene lines. The resultsindicated: 21 of those shows absence of Pm8 resistance,24 present the Pm8 resistance and 3 would carry other gene (s) confering the resistance to powdery mildew. It was assumed that many released cultivars which showed genetic variation of gene Pm8 made the epidemic of wheat powdery mildew in Sichuan. The exploitation of Chromosome 1RS/1BL in wheat production was also discussed in this paper. |
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| Keywords: | CHROMOSOME 1RS/1BL RESISTANCE TO POWDERY MILDEW GENE EXPRESSION WHEAT. |
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