| 黄 瑾, 金社林*, 曹世勤, 贾秋珍, 骆惠生,张 勃, 孙振宇, 王晓明.甘肃36个小麦生产品种抗叶锈病基因分析及成株期抗性评价[J].植物保护,2020,46(4):171-177. |
| 甘肃36个小麦生产品种抗叶锈病基因分析及成株期抗性评价 |
| Postulation of leaf rust resistance genes of 36 wheat cultivars developed in Gansu and their resistance evaluation at adult-plant stage |
| 投稿时间：2019-04-15 修订日期：2019-06-17 |
| DOI：10.16688/j.zwbh.2019186 |
| 中文关键词: 小麦叶锈病 基因推导 抗病基因 小麦叶锈菌 |
| 英文关键词:wheat leaf rust gene postulation resistance gene Puccinia recondita f.sp. tritici |
| 基金项目:国家自然科学基金地区基金（31560488）;甘肃省农业科学院农业科技创新专项（2016GAAS43，2017GAAS100） |
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| 中文摘要: |
| 为明确甘肃省主要小麦品种可能含有的抗叶锈病基因状况,用来自甘肃不同地区的22个小麦叶锈菌生理小种,在苗期对测试品种进行抗叶锈基因推导,并对这些材料进行成株抗叶锈性鉴定。结果表明,在已知抗叶锈病基因中,Lr2B、Lr13、Lr16、Lr22A、Lr30和Lr14B等基因以单基因或基因组合的形式分别分布在‘灵选6号’‘会宁15’‘兰天37’‘陇鉴113’‘兰天151’‘兰天134’和‘兰天40’等7个小麦品种中。‘陇鉴111’‘兰天31’‘陇鉴9343’‘天选67’和‘天选65’等14个品种可能含有与供试已知基因不同的抗性基因,‘中梁35’‘陇鉴110’‘陇原931’和‘天选57’等15个小麦品种推导其不含有供试的抗叶锈病基因。成株期抗叶锈性鉴定表明:‘陇原931’‘陇鉴9343’‘天选57’‘天选67’‘兰天31’‘临麦22’‘兰天134’‘兰天151’‘陇鉴113’‘陇麦838’和‘中梁35’具有较好的成株期抗性,具有抗叶锈病应用潜力。 |
| 英文摘要: |
| In order to clarify the leaf rust resistance genes in the wheat cultivars developed in Gansu, 36 wheat cultivars were selected to postulate the possible resistance genes contained by inoculating with 22 races of Puccinia recondita f.sp. tritici at seedling stage, and their leaf rust resistance was evaluated at adult-plant stage with artificial inoculation. The result showed that six leaf rust resistance genes Lr2B, Lr13, Lr16, Lr22A, Lr30 and Lr14B either singly or in combination were postulated in 7 cultivars, such as ‘Lingxuan 6’‘Huining 15’‘Lantian 37’‘Longjian 113’‘Lantian 151’‘Lantian 134’ and ‘Lantian 40’. The fourteen cultivars such as ‘Longjian 111’‘Lantian 31’‘Longjian 9343’‘Tianxuan 67’‘Tianxuan 65’ etc. were deduced containing other genes different from the 42 known Lr genes used in this study. No Lr gene was detected in fifteen cultivars such as ‘Zhongliang 35’‘Longjian 110’‘Longyuan 931’‘Tianxuan 57’etc. at seedling stage. Besides, the genotypes of ‘Longyuan 931’ ‘Longjian 9343’‘Tianxuan 57’‘Tianxuan 67’‘Lantian 31’‘Linmai 22’‘Lantian 134’‘Lantian 151’‘Longjian 113’‘Longmai 838’ and ‘Zhongliang 35’ are highly resistant to leaf rust at adult-plant stage and show potential use in wheat production and wheat resistance cultivar breeding. |
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