| 基于SNP芯片玉米抗倒性状的QTL定位 |
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| 引用本文： | 燕树锋,范艳萍,刘海芳. 基于SNP芯片玉米抗倒性状的QTL定位[J]. 玉米科学, 2022, 30(2): 29-34 |
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| 作者姓名： | 燕树锋 范艳萍 刘海芳 |
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| 作者单位： | 河南省农业科学院粮食作物研究所, 郑州 450002;河南农业职业学院, 郑州 451450 |
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| 基金项目： | 河南省科技开放合作项目（162106000012）、河南省农业科学院青年国际交流基金项目 |
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| 摘 要： | 利用10K SNP芯片和玉米F2∶3家系，共定位到18个与茎秆穿刺强度、茎粗和穗位高性状相关的QTL。结果表明，5个茎秆穿刺强度QTL分别位于第1、3、4、6、7染色体，4个茎粗QTL分别位于第1、2、4、8染色体上，9个穗位高QTL分别位于第1、2、3、4、6、7、8、9染色体上。在第4染色体2.2～11.7 Mb区段上检测到同时控制地上第3节茎秆穿刺强度、茎粗和穗位高3个性状的QTL；在第8染色体C8M179标记（物理位置118 050 940 bp）附近检测到同时控制地上第3节茎粗和穗位高2个性状的QTL。
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| 关 键 词： | 玉米|抗倒性|穿刺强度|QTL定位|SNP芯片 |
| 收稿时间： | 2021-05-31 |
QTL Identification for Lodging- Resistant Traits Based on SNP Chip in Maize |
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| YAN Shu-feng,FAN Yan-ping,LIU Hai-fang. QTL Identification for Lodging- Resistant Traits Based on SNP Chip in Maize[J]. Journal of Maize Sciences, 2022, 30(2): 29-34 |
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| Authors: | YAN Shu-feng FAN Yan-ping LIU Hai-fang |
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| Affiliation: | Cereal Crops Research Institute, Henan Academy of Agricultural Sciences, Zhengzhou 450002; Henan Vocational College of Agriculture, Zhengzhou 451450, China |
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| Abstract: | Using the 10K SNP chip and maize F2:3 pedigree, a total of 18 QTL for rind penetrometer resistance, stem diameter and ear height were identified. The results showed that, 5 QTL for rind penetrometer resistance distributed on chromosomes 1, 3, 4, 6 and 7; 4 QTL for stem diameter distributed on chromosomes 1, 2, 4 and 8; 9 QTL for ear height distributed on chromosomes 1, 2, 3, 4, 6, 7, 8 and 9. Furthermore, the QTL controlling 3 traits(rind penetrometer resistance, stem diameter and ear height) were identified on the 2.2-11.7 Mb region of chromosome 4. Meanwhile, the QTL controlling 2 traits(stem diameter and ear height) were identified near the C8M179 marker (physical position 118, 050, 940 bp) on chromosome 8. |
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| Keywords: | Maize|Lodging resistance|Rind penetrometer resistance|QTL identification|SNP chip |
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