| 远缘杂交中不育基因的位置和效应的最大似然估计 |
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| 引用本文： | 陈建国. 远缘杂交中不育基因的位置和效应的最大似然估计[J]. 生物数学学报, 2000, 15(2): 240-244 |
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| 作者姓名： | 陈建国 |
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| 作者单位： | 湖北大学生命科学学院，湖北武汉 430062 |
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| 摘 要： | 提出了一种统计方法，利用标记位点的异常分离，来估计远缘杂交中不育基因位点的位置和效应，在回交群体中，用最大似然法对不育基因与标记位点之间的生组值和配子存活率进行估计。将表现连续分布的育性指标转化为百连续变异的遗传标记的分离，可以避免对育性直接观测所带来的重组值估计结果的不稳定，还可以同时估计雌雄配子的存活率。
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| 关 键 词： | 远缘杂交 不育基因 最大似然法 异常分离 作物 |
| 文章编号： | 1001-9626(2000)02-0240-05 |
| 修稿时间： | 1998-12-30 |
A Maximum Likelihood Method for Estimating the Position and Effect of Sterility Genes in Remote Hybridization of Plant |
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| Chen Jianguo. A Maximum Likelihood Method for Estimating the Position and Effect of Sterility Genes in Remote Hybridization of Plant[J]. Journal of Biomathematics, 2000, 15(2): 240-244 |
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| Authors: | Chen Jianguo |
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| Abstract: | This paper puts forward a statistical method which can estimate the position and effect of the sterility genes in remote hybridization by using the distortion segregation of marker loci. The recombination frartion between sterility genes and marker loci and the viability are estimated by using the maximum likelihood method. It can avoid the instability of the estimation of combined statistics brought by investigating fertility directly and est1mate the vlability of male and female gametes simultaneonsly if we change the continuous distribution of gamete fertillty into the separation of non-continuous variation of the genetic markers. |
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| Keywords: | Remote hybridization Sterility genes Segregation distortion Maximum likelihood Molecular markers |
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