| 春小麦抗蚜品系‘J-31’和‘J-48’的抗性遗传分析 |
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| 引用本文： | 胡秉芬,马小乐,师桂英,李葆春,孟亚雄,尚勋武,王化俊.春小麦抗蚜品系‘J-31’和‘J-48’的抗性遗传分析[J].甘肃农业大学学报,2009,44(3). |
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| 作者姓名： | 胡秉芬 马小乐 师桂英 李葆春 孟亚雄 尚勋武 王化俊 |
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| 作者单位： | 甘肃省作物遗传改良与种质创新重点实验室,甘肃农业大学农学院,甘肃,兰州,730070 |
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| 基金项目： | 国家科技支撑计划项目，甘肃省科技重大专项，甘肃省农牧厅协作项目，甘肃省自然科学基金项目，甘肃农业大学中青年创新基金项目 |
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| 摘 要： | 为了研究抗麦长管蚜品系‘J-31’‘J-48’的抗性遗传,采用穗部接虫法对抗蚜品系‘J-31’‘J-48’和感蚜品系‘J-39’及其F1代和F2代分离群体(‘J-31’בJ-39’和‘J-48’בJ-39’)进行了抗蚜鉴定,并用蚜量比值法评价了麦长管蚜的抗性.结果表明,‘J-31’‘J-48’F1代都表现为抗蚜,经χ2测验其F2代群体抗感分离经比为3∶1,(χ2c=3.272 7,P>0.05;χ2c=1.058 6,P>0.05)符合孟德尔理论的比例.据此认为:春小麦抗蚜品系‘J-31’‘J-48’的抗蚜性为质量性状遗传,其抗性各由一对显性单基因控制.
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| 关 键 词： | 小麦 麦长管蚜 遗传分析 |
Genetic analysis of aphid (Macrosiphum avenae ) resistantin spring wheat line 'J-31' and 'J-48' |
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| HU Bing-fen,MA Xiao-le,SHI Gui-ying,LI Bao-chun,MENG Ya-xiong,SHANG Xun-wu,WANG Hua-jun.Genetic analysis of aphid (Macrosiphum avenae ) resistantin spring wheat line ''J-31'' and ''J-48''[J].Journal of Gansu Agricultural University,2009,44(3). |
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| Authors: | HU Bing-fen MA Xiao-le SHI Gui-ying LI Bao-chun MENG Ya-xiong SHANG Xun-wu WANG Hua-jun |
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| Institution: | HU Bing-fen,MA Xiao-le,SHI Gui-ying,LI Bao-chun,MENG Ya-xiong,SHANG Xun-wu,WANG Hua-jun(Gansu Key Lab of Crop Improvement & Germplasm Enhancement,College of Agronomy,Gansu Agricultural University,Lanzhou 730070,China) |
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| Abstract: | In order to reveal the inheritance of wheat aphid(Macrosiphum avenae) resistance in spring wheat lines 'J-31' and 'J-48',the aphid resistance was investigated with resistant lines 'J-31','J-48' and susceptible line 'J-39',their F1 and F2 populations derived from the crosses 'J-31'× 'J-39' and 'J-48'×'J-39' by artificial infestation,and was evaluated by aphid number ratio method.The result indicated that F1 plants of 'J-31' and 'J-48' were resistant to aphid,and the resistance analysis of their F2 segregation populations showed that both segregation ratios were corresponding with the expected Mendelian segregation ratio of 3R∶1S(χ2c=3.272 7,P>0.05 and χ2c=1.058 6,P>0.05,respectively) by Chi-square value.It is suggested that the aphid resistance in spring wheat lines 'J-31' and 'J-48' is a quality inherit trait and is controlled by a single dominant gene respectively. |
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| Keywords: | wheat Macrosiphum avenae genetic analysis |
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