This study introduced a kind of new SNP genotyping strategy in genetic analysis of Chinese shrimp (Fenneropenaeus chinensis). Twenty SNP tetra-primer ARMA-PCR primer sets were validated and used to investigate the genetic structure of six selected families of marine shrimp F. chinensis. The effective number of alleles ranged from 1.127 to 1.993, with an average value of 1.600. The average values of expected and observed heterozygosities of the SNPs ranged from 0.505∼0.609 and 0.373∼0.487, respectively. Polymorphism information content (PIC) values ranged from 0.145 to 0.373. Among 120 population-locus cases (six populations × twenty loci), only 8 (6.7%) showed significant deviation (P < 0.05), while the other 112 (93.3%) were in Hardy-Weinberg equilibrium (HWE) (P > 0.05). The frequencies of minor alleles ranged from 0.378 to 0.497. For the six families, the wild genotype and its allele frequency were significantly higher than that of the mutant genotype and its allele frequency. Fifty five point forty two percent of the population-locus showed heterozygosity. The results indicated that tetra-primer ARMA-PCR is a simple, rapid and efficient method for SNP genotyping which make it useful in a broad aspects of F. chinensis genetic and breeding studies.
Russian Journal of Marine Biology – Springer Journals
Published: Nov 9, 2011
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