| 抗条锈病小偃麦异附加系及其染色体稳定性的研究 |
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| 引用本文： | 张忠军,张熠.抗条锈病小偃麦异附加系及其染色体稳定性的研究[J].中国农业大学学报,1994(3):293-296. |
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| 作者姓名： | 张忠军 张熠 |
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| 作者单位： | 北京农业大学植物保护系;北京农业大学植物保护系 北京; |
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| 摘 要： | 以异源八倍体小偃麦中4作为抗条锈病染色体的供体亲本,以普通小麦品种铭贤169作为受体亲本,通过杂交、回交、自交、抗病性鉴定和花粉母细胞减数分裂染色体显微镜检查,选择出了含抗条锈病中间偃麦草染色体的二体附加系;对附加系花粉母细胞减数分裂观察发现,终变期有5.2%的细胞中出现了单价体,后期Ⅰ中有7.4%的细胞中存在停留于赤道板上不分离的染色体,表明附加的染色体在一定程度上是不稳定的;所得到的3个附加系中的1个,其组织病理学特征与另外两个明显不同,推测这3个附加系所附加的中间偃麦草染色体并非是同一个。
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| 关 键 词： | 小麦 中间偃麦草 附加系 抗病性 |
| 收稿时间： | 1993/12/10 0:00:00 |
Transfer of Stripe Rust-Resistance from Agropyron Intermedium to Triticum aestivum and Stability of Alien Chromosome(s) |
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| Zhang Zhongjun Zhang Yi.Transfer of Stripe Rust-Resistance from Agropyron Intermedium to Triticum aestivum and Stability of Alien Chromosome(s)[J].Journal of China Agricultural University,1994(3):293-296. |
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| Authors: | Zhang Zhongjun Zhang Yi |
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| Institution: | Zhang Zhongjun Zhang Yi (Dept.of Plant Protection,Beijing Agricultural University,Beijing 100094) |
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| Abstract: | The chromosome(s)of Agropyron intermedium which confer the resistance to Puccinia striiformis have been transferred to a universal susceptible cultivar of Triticum aestivum.In 5.2% of mi- crosporocytes of a disomic addition line(DAL)the alien chromosome were in monovalent form.and in 7.4% of microsporocytes the alien chromosome lagged at first anaphase,implying the incomplete stability of the addition lines.The pathologically histological observation on the leaves inoculated with urediospores of P.striiform... |
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| Keywords: | Triticum aestivum Agropyron intermedium addition line stripe rust |
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