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期 刊 ：植物遗传资源学报 2015年 16卷 5期

关键词：关键词小麦；西科麦2028；小麦条锈病；抗条锈性；遗传分析；

Keywords:Keywords: wheat, Xikemai2028, wheat stripe rust, resistance, genetic analysis,

摘 要 ：摘要：为明确小麦西科麦2028对小麦条锈菌流行小种的抗病性和抗病遗传规律，以便更好更有效地为抗病小麦育种提供依据。用小麦条锈菌生理小种CYR31、CYR32、CYR33以及Su11-4，在苗期和孕穗期对西科麦2028进行人工接种和自然诱发，作抗病性鉴定。用西科麦2028和感病亲本铭贤169进行杂交，用CYR31、CYR32、CYR33、Su11-4小麦条锈菌生理小种,对F2群体、F3株系以及回交BC1F1、BC1F2代进行人工接种鉴定。结果表明：西科麦2028对条锈菌免疫和近免疫。对CYR31的抗病性由3对显性基因控制；对CYR32由2对显性和1对隐性基因控制；对CYR33由1对显性基因控制；对Su11-4由1对显性和1对隐性基因控制。

Abstract:Abstract: To the clear of Xikemai2028 of wheat stripe rust was popular small resistance and genetic law of resistance, in order to better and more effectively provide the basis for disease resistance in wheat breeding. With wheat stripe rust was physiological small CYR31 and CYR32, CYR33 and Su11-4, in seedling stage and booting stage of Xikemai2028 induced by artificial inoculation and natural, disease resistance identification. With Xikemai2028 and infected Mingxian 169 parents for hybridization, with CYR31 and CYR32, CYR33, Su11-4 small kind of wheat stripe rust was physiology, including of F2 and F3 lines and backcross BC1F1, artificial inoculation identification of BC1F2 generations. The results:showed that the immune and nearly immune article to rust in Xikemai2028 of wheat. Controlled by the three pairs of dominant gene for CYR31 disease resistance; To CYR32 by 2 to explicit and 1 to control the recessive gene; By CYR33 1 to dominant gene control; By Su11-4 for explicit and 1 control of recessive gene.

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