Study on the Genetic Diversity of the Conservation Population in Songpu Common Carp

doi:10.7668/hbnxb.2011.S1.006

Abstract

Abstract: Songpu common carp is a breeding variety.In order to maintain the genetic diversity of the variety for a long time,the genetic structure of the fish was studies with 29 polymorphic microsattelite loci.The study showed that in the 194 sampled individuals,166 alleles were detected,the average number of effective allele is 5.724 1,average PIC is 0.584 9,and average expected heterozygosity is 0.572 2,which indicated that the new variety has a relative high genetic diversity.Hardy-weinberg equilibrium analysis showed that the population was in disequilibrium mode,which indicated that artificial selection had a great effect on the population.Bottleneck analysis illustrated that the population has experienced bottleneck effect recently.The effective population size was 69.8 with linkage disequilibrium method.The study illustrated that the variety has rich genetic diversity,but the population structure was disequilibrium and bottleneck effect has happened.Therefore,it′s necessary to take measures for reservation of the genetic diversity of the new variety.

Key words: Songpu common carp, Reservation, Microsatellite, Genetic structure

CLC Number:

S965

JIA Zhi-ying, LI Fei, LI Chi-tao, SHI Lian-yu. Study on the Genetic Diversity of the Conservation Population in Songpu Common Carp[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2011, 26(S1): 29-34. doi: 10.7668/hbnxb.2011.S1.006.

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