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| 胡萝卜黑斑病抗性的动态遗传分析 | |
| 引用本文： | 欧承刚,曹琼文,赵志伟,任怀富,李成江,庄飞云.胡萝卜黑斑病抗性的动态遗传分析[J].中国蔬菜,2019,1(4):34-39. |
| 作者姓名： | 欧承刚 曹琼文 赵志伟 任怀富 李成江 庄飞云 |
| 作者单位： | 1.中国农业科学院蔬菜花卉研究所，农业农村部园艺作物生物学与种质创制重点实验室，北京100081；;2. 宿州市农业科学院，安徽宿州 234000；;3. 西宁市蔬菜研究所，青海西宁 810016 |
| 基金项目： | 国家重点研发计划项目（2016YFD0100204-04），中国农业 科学院科技创新工程项目（CAAS-ASTIP-IVFCAAS），中国农业科 学院科技创新工程协同创新任务（CAAS-XTCX2016017），现代农业 产业技术体系建设专项资金项目（CARS-25），青海省重点研发与转 化计划项目（2017-NK-150） |
| 摘 要： | 采用加性- 显性遗传模型，利用19 份橘色胡萝卜试材配制63 个杂交组合，研究3 个发病时期下黑斑病抗性的动态
遗传规律。结果表明，各时期的遗传效应以加性效应为主，在发病中期和晚期（VA=0.656 和0.551）达到显著水平，并且在
发病中期显著增加，说明该时期是挖掘相关抗病基因的适宜时期；显性效应在发病晚期显著增加，达到最高值（VD=0.311）。
黑斑病抗性存在显著的狭义遗传率和广义遗传率，最高为0.574 和0.827，说明通过选择抗性亲本可以提高后代的抗病性。
获得5 份可以显著增加后代黑斑病抗性的亲本材料P12、P14、P15、P16、P17。 |
| 关 键 词： | 胡萝卜 黑斑病 抗性 遗传分析 |
Dynamic Genetic Analysis of Resistance to Alternaria Leaf Blight in Carrot |
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| OU Cheng-gang,CAO Qiong-wen,ZHAO Zhi-wei,REN Huai-fu,LI Cheng-jiang,ZHUANG Fei-yun.Dynamic Genetic Analysis of Resistance to Alternaria Leaf Blight in Carrot[J].China Vegetables,2019,1(4):34-39. | |
| Authors: | OU Cheng-gang CAO Qiong-wen ZHAO Zhi-wei REN Huai-fu LI Cheng-jiang ZHUANG Fei-yun |
| Institution: | 1. Key Laboratory of Horticultural Crop Biology and Germplasm Innovation，Ministry of Agriculture and Rural Affairs；; Institute of Vegetables and Flowers，Chinese Academy of Agricultural Sciences，Beijing 10008，China；;2. Suzhou Academy; of Agricultural Science，Suzhou 234000，Anhui，China；;3. Xining Vegetable Institute，Xining 810016，Qinghai，China |
| Abstract: | Taking additive-dominance genetic model，and using 19 orange carrot lines as experiment material to prepare their 63 F1 crosses，this paper studied the dynamic genetic law of Alternaria leaf blight resistance during 3 stages．The results indicated that the additive effect was the major genetic effect，which reached significant level during median and late stages（VA=0.656 and 0.551）and increased significantly in median stage，indicating that this stage was the suitable time to study related resistant genes．The dominance effect was increased significantly and reached the highest value（VD=0.311）in late stage．There were narrow heritability and broad heritability existed in Alternaria leaf blight resistence．The highest were 0.574 and 0.827， indicating that selecting resistant parent could improve disease resistance in offspring．Five parent materials， which could significantly improve Alternaria leaf blight resistence in offspring，were obtained．They were P12，P14，P15，P16，P17． |
| Keywords: | Carrot Alternaria leaf blight Resistance Genetic analysis |
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