摘要
为了研究在施行随机留种、随机交配、世代不重叠、群体间个体无迁移、整个保种过程中基因不发生突变的原位保种群体中遗传漂变的变化情况,试验采用计算机模拟方法针对不同群体规模下闭锁群体基因频率、基因型频率在50个世代中的变化进行研究。结果表明:群体规模越大,基因频率、基因型频率在世代间波动的幅度越小,因此世代间随机遗传漂变基因被固定或丢失的概率越小。
To study the changes of genetic drift in situ conservation groups with non-mutant gene,under the conditions of random breed,random mating,non-overlapping generations and individuals without migration between populations.Computer simulation was used to determine the changes of gene frequency and genotype frequency of closed populations with different population sizes in fifty generations.The results showed that the greater population size,the smaller random fluctuation of gene frequency and genotype frequency between generations,and the lower probability of gene loss or fixation due to random genetic drift between generations.
出处
《黑龙江畜牧兽医》
CAS
北大核心
2012年第7期46-48,共3页
Heilongjiang Animal Science And veterinary Medicine
基金
"十一五"国家科技支撑计划项目(2007BAD53B03)
关键词
群体规模
遗传漂变
计算机模拟
population size
genetic drift
computer simulation
