| 油菜硼高效的遗传 |
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| 作者姓名： | SHI Lei WANG Yun-Hu NIAN Fu-Zhao LU Jian-Wei MENG Jin-Ling XU Fang-Sen |
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| 作者单位： | SHI Lei,XU Fang-Sen(National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research Wuhan,Huazhong Agriculture University,Wuhan 430070 (China);Microelement Research Centre,College of Resources and Environment,Huazhong Agriculture University,Wuhan 430070 (Ching));WANG Yun-Hua,NIAN Fu-Zhao,LU Jian-Wei(Microelement Research Centre,College of Resources and Environment,Huazhong Agriculture University,Wuhan 430070 (Ching));MENG Jin-Ling(National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research Wuhan,Huazhong Agriculture University,Wuhan 430070 (China))
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划) |
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| 摘 要： | Field experiments were conducted to study the inheritance of boron efficiency in oilseed rape (Brassica napus L.) by evaluating the boron (B) efficiency coefficient (BEC, the ratio of the seed yield at below the critical boron level to that at the boron-sufficient level) with 657 F2:3 lines of a population derived from a cross between a B-efficient cultivar, Qingyou 10, and a B-inefficient cultivar, Bakow. Qingyou 10 had high BEC as well as high seed yield at low available soil B. On the contrary, Bakow produced low seed yield at low B status. Boron deficiency decreased the seed yield of the F2:3 lines to different extents and the distribution of BEC of the population showed a bimodal pattern. When the 657 F2:3 lines were grouped into B-efficient lines and B-inefficient lines according to their BEC, the ratio of B-efficient lines to B-inefficient lines fitted the expected ratio (3:1), indicating that one major gene controlled the B-efficiency trait. 127 F2:3 lines selected from the population at random, with distribution of BEC similar to that of the overall population, were used to identify the target region for fine mapping of the boron efficiency gene.
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| 关 键 词： | boron efficiency boron level Brassica napus L. inheritance seed yield |
| 收稿时间： | 25 November 2008 |
Inheritance of boron efficiency in oilseed rape |
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| SHI Lei,WANG Yun-Hu,NIAN Fu-Zhao,LU Jian-Wei,MENG Jin-Ling,XU Fang-Sen.Inheritance of boron efficiency in oilseed rape[J].Pedosphere,2009,19(3):403-408. |
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| Authors: | SHI Lei WANG Yun-Hu NIAN Fu-Zhao LU Jian-Wei MENG Jin-Ling and XU Fang-Sen |
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| Institution: | National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agriculture University, Wuhan 430070 (China);Microelement Research Centre, College of Resources and Environment, Huazhong Agriculture University, Wuhan 430070 (China);Microelement Research Centre, College of Resources and Environment, Huazhong Agriculture University, Wuhan 430070 (China);Microelement Research Centre, College of Resources and Environment, Huazhong Agriculture University, Wuhan 430070 (China);Microelement Research Centre, College of Resources and Environment, Huazhong Agriculture University, Wuhan 430070 (China);National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agriculture University, Wuhan 430070 (China);National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agriculture University, Wuhan 430070 (China);Microelement Research Centre, College of Resources and Environment, Huazhong Agriculture University, Wuhan 430070 (China) |
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| Abstract: | Field experiments were conducted to study the inheritance of boron efficiency in oilseed rape (Brassica napus L.) by evaluating the boron (B) efficiency coefficient (BEC,the ratio of the seed yield at below the critical boron level to that at the boron-sufficient level) with 657 F2:3 fines of a population derived from a cross between a B-efficient cultivar,Qingyou 10,and a B-inefficient cultivar,Bakow.Qingyou i0 had high BEC as well as high seed yield at low available soil B.On the contrary,Bakow produced low seed yield at low B status.Boron deficiency decreased the seed yield of the F2:3 lines to different extents and the distribution of BEC of the population showed a bimodal pattern.When the 657 F2:3 lines were grouped into B-efficient lines and B-inefficient lines according to their BEC,the ratio of B-efficient lines to B-inefficient lines fitted the expected ratio (3:1),indicating that one major gene controlled the B-efficiency trait.127 F2:3 lines selected from the population at random,with distribution of BEC similar to that of the overall population,were used to identify the target region for fine mapping of the boron efficiency gene. |
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| Keywords: | boron efficiency boron level Brassica napus L inheritance seed yield |
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