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Position: Home > Articles > Identification of Aegilops ventricosa-Aegilops cylindrica Amphiploid SDAU18 Journal of Triticeae Crops 2006,26 (3) 18-21

偏凸-柱穗山羊草多倍双二倍体SDAU18的鉴定

作者：

王玉海;张玲;张光;郝元峰;张志雯;司玉君;王洪刚

单位：

山东农业大学农学院/农业部小麦栽培生理与遗传改良重点开放实验室/国家小麦改良中心山东分中心;枣庄市第一中学;滕州市农业局

关键词：

偏凸山羊草;柱穗山羊草;多倍多倍双二倍体;染色体构型

摘要：

利用偏凸山羊草和柱穗山羊草杂交人工合成了多倍多倍双二倍体SDAU18,并对SDAU18及其双亲的细胞学及主要性状特点进行了鉴定。结果表明,偏凸山羊草和柱穗山羊草的花粉母细胞减数分裂中期Ⅰ(PMCMI)的染色体构型均为14Ⅱ;SDAU18的根尖细胞(RTC)染色体数目为2n=56,PMCMI的染色体构型基本上为28Ⅱ,是一个偏凸山羊草和柱穗山羊草的完全多倍多倍双二倍体;SDAU18在株高、穗长、每穗小穗数、穗粒数、千粒重等方面都优于其双亲,且对白粉病、条锈病表现免疫。

译名：

Identification of Aegilops ventricosa-Aegilops cylindrica Amphiploid SDAU18

作者：

WANG Yu-hai~ 1, 4 ,ZHANG Ling~2,ZHANG Guang~3,HAO Yuan-feng~1,ZHANG Zhi-wen~1,SI Yu-jun~1,WANG Hong-gang~1(1. College of Agronomy, Shandong Agricultural University/Key Laboratory of Wheat Physiology&Genetic Improvement, Ministry of Agriculture/ Shandong Subcenter of National Wheat Improvement Center, Taian, Shandong 271018,China; 2. The No.1 Middle School of Zaozhuang City,Zaozhuang, Shandong 277300,China; 3. Tengzhou Bureau of Agriculture, Tengzhou, Shandong 277500,China; 4. Yicheng Bureau of Agriculture, Yicheng, Shandong 277300,China)

关键词：

Aegilops ventricosa; Aegilops cylindrica; Amphiloid

摘要：

An amphiploid (SDAU18) was artificially synthesized by crossing Ae.ventricosa and Ae.cylindrica, then the identification on cytologic characteristics and main agronomic traits of SDAU18 and its parents (Aegilops ventricosa and Aegilops cylindrica) was carried out. The results showed that the chromosome configurations of Aegilops ventricosa and Aegilops cylindrica at PMC MI were both 14Ⅱ,and that of SDAU18 at PMC MI was basically 28Ⅱ, the number of RTC chromosomes was 56. Thereby, SDAU18 can be judged as a full amphiloid of Ae.ventricoas and Ae.cylindrical by the cytologic analysis. Furthermore, SDAU18 was better in many characters than its parents, such as plant height, ear length, seed weight, the number of spikelet and the number of seeds per ear. In addition, it was immune to powdery mildew and stripe rust.

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偏凸-柱穗山羊草多倍双二倍体SDAU18的鉴定

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