| 随机交配群体隐性致死纯合基因型出现的平方Logistic模型(英文) |
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| 引用本文： | 韦文惠,王子平,林建国,蔡润,李大林.随机交配群体隐性致死纯合基因型出现的平方Logistic模型(英文)[J].农业科学与技术,2008,9(3):1-5. |
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| 作者姓名： | 韦文惠 王子平 林建国 蔡润 李大林 |
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| 作者单位： | 柳州职业技术学院基础部;广西工学院科学技术处;上海交通大学农业与生物学院 |
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| 摘 要： | From the random mating population of maize, the relationship between heterosis and albino seedling was analyzed by means of mathematical theory, further the square logistic model for the appearance of lethal recessive homozygous genotype was deduced. The model shows that heterosis can determine the genetic structure and proportion of population. It approves, that the proportion of aa in each generation of maize seedlings shows a similar Logistic curve in growth process till equilibrium, so long as Aa containins lethal gene a from mutation presents heterosis. The ratio of equilibrium state of aa is determined by the ratio of AA-Aa fitness. Heterosis is helpful for the keeping of genetic diversity of population.
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| 关 键 词： | Fitness Recessive lethal Heterosis Random mating Equilibrium |
Square Logistic Model for the Appearance of Lethal Recessive Homozygous Genotype in Random Mating Population |
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| WEI Wen-hui,WANG Zi-ping,LIN Jian-guo,CAI Run,LI Da-lin.Square Logistic Model for the Appearance of Lethal Recessive Homozygous Genotype in Random Mating Population[J].Agricultural Science ＆ Technology,2008,9(3):1-5. |
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| Authors: | WEI Wen-hui WANG Zi-ping LIN Jian-guo CAI Run LI Da-lin |
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| Institution: | 1. Liuzhou Vocational & Technical College, Liuzhou, 540006; 2. Department of Science and Technology, Guangxi University of Technology, Liuzhou 540006; 3. School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai 200240 |
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| Abstract: | From the random mating population of maize, the relationship between heterosis and albino seedling was analyzed by means of mathematical theory, further the square logistic model for the appearance of lethal recessive homozygous genotype was deduced. The model shows that heterosis can determine the genetic structure and proportion of population. It approves, that the proportion of aa in each generation of maize seedlings shows a similar Logistic curve in growth process till equilibrium, so long as Aa containins lethal gene a from mutation presents heterosis. The ratio of equilibrium state of aa is determined by the ratio of AA-Aa fitness. Heterosis is helpful for the keeping of genetic diversity of population. |
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| Keywords: | Fitness Recessive lethal Heterosis Random mating EquilibriumCAI Run Corresponding author E-mail: cairun@sjtu edu cn |
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