Molecular marker for rapid growth character of litopenaeus vannamei, detection primer and application

The invention discloses a molecular marker for the fast growth character of litopenaeus vannamei, a detection primer and application. The SNP molecular marker significantly related to the fast growth character is located at the 308bp site (namely, the P2638 site in a DAN4-like cell wall protein coding gene dan4) of a nucleotide sequence as shown in SEQ ID NO.1, and the genotypes of the site comprise G/G, A/A and G/A types. The prawn individuals with the SNP sites of A/A homozygous genotypes have obviously fast growth speed, the prawn individuals with the SNP sites of G/G homozygous genotypes have relatively slow growth speed, and the prawn individuals with the SNP sites of G/A heterozygous genotypes have medium growth speed. The SNP molecular marker and the molecular marker detection primer can be used for evaluating population growth traits and also can be used for selecting prawn individuals with potential growth dominant traits. 本发明公开了一种凡纳滨对虾快长性状的分子标记、检测引物及应用。该快长性状显著相关的SNP分子标记位于如SEQ ID NO.1所示核苷酸序列的第308bp位点