Abstract: The genetic diversity of the taimen conservation population(Contained 4 groups) with 29 polymorphic microsatellite loci. The study showed that in the 332 sampled individuals,2一13 alleles were detected in each locus,the average effective allele number was 3. 961 3,the average observed heterozygosity and expected heterozygosity were 0. 642 and 0. 675 1 respectively, the average PIC was 0. 633.The genetic diversity of the 4 groups was B7(F1♀× wild ♂3×3) exceed B10(F1♀×F1♂3×3),B10(F1♀×F1♂3×3) exceed B6(wild♀×wild♂3×3),B9(F1♀×F1♂1×1)was the lowest. Except the group F1♀×F1♂1×1,the genetic distance between B6(wild♀×wild♂3×3)、B9(F1♀×F1♂1×1)、 was the farthest between B7(F1♀×wild♂3×3) and B10(F1♀×F1♂3×3))with the nearest distance. The clustering result based on the genetic distance showed that B6(wild♀×wild♂3×3),B9(F1♀×F1♂1×1),B10(F1♀×F1♂3×3)clustered as one Glade respectively,the cross breeding groups B7(F1♀×wild♂3×3)was divided into two Glades. This research also discussed the possibility that the endangered animals to maintain the rich diversity in offsprings.

Key words: Taimen, Genetic diversity, Microsatellite, Reservation

CLC Number: 

• Q78