本文的研究结果表明扬子鳄MHC基因的多态性较高，这对扬子鳄饲养种群的遗传保护将非常有利。
The high polymorphism of MHC genes in Chinese alligator would be of great benefit to genetic conservation in the captive population of Chinese alligator.
反映了扬子鳄种群非常低的遗传多态性。
Reflect the genetic polymorphism of the Chinese alligator population is very low.
从猪蛋白质（酶）多态性和DNA分子水平上估测出亲本种群间的遗传距离，探讨它们与基因杂合度及经济性状杂优率之间的关系。
Parental genetic distances were evaluated by plasma protein(enzyme) polymorphisms and DNA molecular level. Their relationship with gene heterozygosities and heterosis of various traits were analyzed.
应用推荐