pedigree analysis
5.The value of polymorphism information content(PIC) varied from 0.17~0.85,with an average of 0.73. The genetic similarity cofficient of 19 lines varied from 0.63~0.87, with average of 0.72. Through cluster analysis based on the 42 SSR markers by UPGAM, the 19 lines could be classified into four groups, which is generally agree with the pedigree analysis.
8.In this article, we review isolation methods, developmental status and genetic characteristics of microsatellites, and their applications in studies on population study, pedigree analysis, assessment of genetic diversity, and construction of genetic maps in the marine mollusks, and analyzed the causes resulting to null allele, stutter bands, short allele dominance and allelic dropout, and their effects on genotyping of microsatellite.

