The construction of genetic linkage map of common carp（Cyprinus carpio L.）

Abstract:

The common carp（Cyprinus carpio L.）is the most extensively cultured fish in the world，as well as in China .Construction of genetic linkage map of common carp is necessary to increase the efficiency of selective breeding，especially complicated traits.In this study,a genetic linkage map has been constructed for the common carp（Cyprinus carpio L.）using the mode of cross Pollinators in JoinMap 4.0 software.The resuts showed that the framework of genetic linkage map consisted of 560 markers（174 SSR markers,41 EST markers and 345 SNP markers）in 50 linkage groups ranged in size from 1.5 cM（The unit is centimorgan）to 198.1 cM and consisted of 2 to 60 markers .The average markers of 50 linkage groups is 11.2. The total linkage distance spanned by these markers was 3 295.9 cM with an average of 7.21 cM for the whole framework map，and the map coverage is 76.26%.This mediumdensity genetic linkage map is an improvement of further QTL，fine mapping，marker assisted selection（MAS）linked to important traits and comparative genome mapping in common carp.