Identification of brown rust resistance and molecular detection of Bru1 gene in new and main cultivated sugarcane varieties
ZHANG Rong-Yue,, WANG Xiao-Yan, YANG Kun, SHAN Hong-Li,*, CANG Xiao-Yan, LI Jie, WANG Chang-Mi, YIN Jiong, LUO Zhi-Ming, LI Wen-Feng, HUANG Ying-Kun,*Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences / Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, Yunnan, China
National Natural Science Foundation of China.31660419 China Agriculture Research System.CARS-170303 Yunling Industry and Technology Leading Talent Training Program “Prevention and Control of Sugarcane Pests”.2018LJRC56 Yunnan Province Technology Innovation Talent Training Object Project, and the Yunnan Province Agriculture Research System.
作者简介 About authors E-mail: rongyuezhang@hotmail.com
Abstract The aim of this study was to assess brown rust resistance of new sugarcane varieties bred in China and main cultivated varieties in sugarcane planting area, and screen the elite new brown rust resistant varieties for popularization and application in production. In total, 60 new varieties in the national regional test of new sugarcane varieties were tested in Kaiyuan and Lincang, and 34 main cultivated varieties were studied in Lincang, Puer, and Yuxi, Yunnan province, and Yizhou, Guangxi province, China, where the incidence of brown rust was particularly high. The resistance of these sugarcane varieties to brown rust was investigated under natural inoculation and molecular marker-assisted identification was used to detect the brown rust resistance gene Bru1. The results of field survey showed that 66 (70.21%) of the 94 new and main cultivated varieties were highly resistant to moderately resistant, and 28 (29.79%) were susceptible to highly susceptible. Molecular detection indicated that Bru1 gene was found among 54 (57.45%) of the 94 new and main cultivated varieties. Some main cultivated varieties that were currently planted across large areas such as Guitang 29, Guitang 44, Dezhe 03-83, Liucheng 03-1137, Yuetang 60, and Guitang 46 were highly susceptible to brown rust, and 31 new varieties such as Yuegan 48, Funong 09-2201, Guitang 08-120, Liucheng 09-15, Zhongzhe 1, Yunzhe 08-1609, Yunrui 10-187, and Zhongtang 1201 were resistant. Therefore, in the sugarcane planting areas with high incidence of brown rust and wet and rainy climates, more effort should be eliminated the main susceptible varieties and promoted the application of new resistant varieties. This will help to achieve a reasonable distribution of varieties, fundamentally control the outbreak of disease in sugarcane planting areas, and provide security for the high-quality development of sugarcane industry in China in the future. Keywords:sugarcane;main cultivated varieties;brown rust;brown rust resistance gene Bru1;resistance
PDF (414KB)元数据多维度评价相关文章导出EndNote|Ris|Bibtex收藏本文 本文引用格式 张荣跃, 王晓燕, 杨昆, 单红丽, 仓晓燕, 李婕, 王长秘, 尹炯, 罗志明, 李文凤, 黄应昆. 甘蔗新品种及主栽品种对褐锈病抗性与Bru1基因分子检测[J]. 作物学报, 2021, 47(2): 376-382. doi:10.3724/SP.J.1006.2021.04119 ZHANG Rong-Yue, WANG Xiao-Yan, YANG Kun, SHAN Hong-Li, CANG Xiao-Yan, LI Jie, WANG Chang-Mi, YIN Jiong, LUO Zhi-Ming, LI Wen-Feng, HUANG Ying-Kun. Identification of brown rust resistance and molecular detection of Bru1 gene in new and main cultivated sugarcane varieties[J]. Acta Agronomica Sinica, 2021, 47(2): 376-382. doi:10.3724/SP.J.1006.2021.04119
Table 1 表1 表1甘蔗新品种对褐锈病菌的抗性与Bru1基因PCR检测结果 Table 1PCR detection of Bru1 and evaluation of field resistance to Puccina melanocephala in new sugarcane varieties
Table 2 表2 表2甘蔗主栽品种对褐锈病菌的抗性与Bru1基因PCR检测结果 Table 2PCR detection of Bru1 and evaluation of field resistance to Puccina melanocephala in major sugarcane varieties
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李竹, 许莉萍, 苏亚春, 吴期滨, 成伟, 孙婷婷, 高世武. 基于田间表型和Bru1基因检测分析甘蔗褐锈病抗性遗传 作物学报, 2018,44:306-312. DOI:10.3724/SP.J.1006.2018.00306URL [本文引用: 1] Puccinia melanocephala)引起的甘蔗褐锈病具有产孢量大、流行性强的特点, 可导致甘蔗产量和蔗糖分的严重损失, 了解抗病性遗传有助于抗锈病育种中的亲本选择和组合配制, 而有效的抗性鉴定技术则是分离个体选择所必需的。本研究以甘蔗分离群体为材料, 利用表型与抗褐锈病主效基因Bru1检测相结合, 研究甘蔗褐锈病抗性遗传倾向并评价Bru1基因检测与表型抗性的关联性。结果显示, 发病盛期, 感病个体中, Bru1基因未检出率为96.7%, 但未感病个体中, Bru1基因的检出率仅为66.0%, 且高抗组合CP84-1198×云蔗89-7群体中的未感病个体, 该基因检出率为0, 尽管也发现有2个组合的未感病个体中, 该基因的检出率为100%。说明由Bru1基因控制的抗性可根据该基因的检测结果判断其抗/感病性, 同时, 甘蔗基因池中还存在其他未知的控制抗病性状的主效基因。值得强调的是, 父母本的抗病性均影响杂交后代的抗病性, 但以抗病亲本为父本的组合, 其分离群体的感病个体明显减少, 说明父本对杂交后代的褐锈病抗性影响可能更大。]]> LiZ, XuL P, SuY C, WuQ B, ChengW, SunT T, GaoS W. Analysis of brown rust resistance inheritance based on field phenotypes and detection of Bru1 gene in sugarcane Acta Agron Sin, 2018,44:306-312 (in Chinese with English abstract). [本文引用: 1]