Genetic Diversity Of Captive Population Of The Amur Tiger In China Felid Breeding Centre

Genetic diversity of 3 generations (F1, F2, F3) of captive Siberian tiger population of China Felid Breeding Center. Molecular genetic Parameters, including allele number, effective allele number, heterozygosity, polymorphism Information content and multiple locus heterozygosity indicated that 1) Fl contained rich genetic diversity, but some alleles had very low frequency in F2 and F3, needs salvaging conservation;2) Selective breeding was a key factor leading to the loss of genetic diversity, and introduction of external individual to this population did not effectively stop the declining trend. Target and strategy of genetic management must be adjusted in favor of genetic diversity conservation. 3) Extreme large of population is a key factor resulting in improper breeding and insufficient genetic management. The population should be divided into a population for ex situ conservation and a population for production, which are managed with different target. 4) Division and genetic management should be based on reasonable molecular genetic analysis that function in analysis, prediction and control of genetic diversity, so as to maximize the conservation capability of genetic resources in ex situ conservation population and move individuals without genetic significance for conservation to the population for production and breed in favor of productive trait.