mtDNA在家畜遗传育种中的应用

家畜ｍｔＤＮＡ具有大小恒定、核苷酸替代率多，以母性方式遗传、密码不通用性、基因排列相当经济、同源性高等基本特点，其多态性很丰富，可用于基因工程，家畜品种起源进化、亲缘关系、畜群遗传结构、及其与家畜生产性能的关系等方面的研究，这将为ｍｔＤＮＡ广泛应用于家畜遗传能种领域提供重要的理论价值和实际意义。

Application of mtDNA Analysis in Animal Genetics and Breeding

The animal mtDNA analysis had been widely used in gene engineering, animal evolution, parentage determination, genetic structure analysis and relationship with animal production performance etc. Because of its abundant polymorphism, constant size, frequent ribonucleotide substitution, maternal inheritance, nonuniformity of codon, rather economic gene arrangement and high similarity, this review provided an important theoretical and practical significance for the utilization of mtDNA in the research fields of animal genetics and breeding.;