遗传同型交配下一对等位基因群体的Shannon信息熵  

The Entropy of a Pair Alleles Population in Mating of Homologous Genotypes

作　　者：张宏礼[1] 郭满才[1] 吴晓华 王丽波[1] 刘璐[1] 周静芋[1] 袁志发[1] 

机构地区：[1]西北农林科技大学生命科学学院 [2]克山双河中学,黑龙江克山161600

出　　处：《西北农业学报》2004年第2期47-51,共5页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：西北农林科技大学重点科研基金项目(0808)

摘　　要：研究了在遗传同型交配下的世代交替中,一对等位基因群体的基因型信息熵和配子间的互信息。结果表明:随世代交替,随机交配下的平衡群体的基因型信息熵逐代减少、配子间的互信息逐代增加。从信息学角度看,在遗传同型交配下群体的遗传多样性逐代减少,配子间的信息交流逐代增加。最后应用Matlab进行了模拟,验证了所推导结果的正确性。The character of genotypes entropy and inter-zygotes′ inter-entropy of a pair alleles population in mating of homologous genotypes was studied. The results showed that genotypes entropy increasingly fell, and inter-zygotes′ inter-entropy increasingly rose in mating of homologous genotypes. It showed that genetical diversity of population is falling,and that connect of inter-zygotes is becoming more and more at the course of change. At last, the coclusions were tested and verified by imitation of computer.

关 键 词：遗传同型交配 等位基因群体 Shannon信息熵 世代交替 互信息 遗传多样性 

分 类 号：S813[农业科学—畜牧学]