Molecular Related Indexes Assessment and Traits Correlation Analysis of Turbot（Scophthalmus maximus L.） by Using SSR Marker Correlation Coefficient in Turbot

Five molecular related indexes： MOL, SIM, d2, H0and PIC of 15 turbot parent pairs were estimated by using 10 SSR loci, which were used in correlation analysis with growth traits, DIL and DIW, of family filial from those 15 parent pairs.DIL and DIW were regressed on the MOL, SIM, d2, H0and PIC. Results showed MOL of five SSR loci（12, 17, 24, 81 and 85） and SIM of five loci（17, 21, 24, 81and 85） all shared significant positive correlation with DIL（r=0.482, P=0.035 and r=0.479, P=0.035, respectively）; H0of six SSR loci（11, 17, 21, 24, 26 and 85） had significant positive correlation with DIW（r=0.551, P=0.017）; PIC of two SSR loci（9and 26） had significant positive（r=0.519, P=0.024） correlation with DIL, while that and of four loci（17, 24, 27 and 85） had significant negative correlation（r=-0.519,P=0.024）, with DIL. This present study suggested that filial growth expression could be predicted by using molecular related indexes in turbot breeding practice, and the accuracy of prediction depends on more SSR loci, especially associated with QTL.