A SNP Genetic Map for Pacific White Shrimp (Litopenaeus vannamei)

Date
2010-01-01
Authors
Du, Zhi-Qiang
Onteru, Suneel
Rothschild, Max
Gorbach, Danielle
Rothschild, Max
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Abstract

Pacific white shrimp are of particular economic importance to the global shrimp aquaculture industry. We utilized the limited public sequence information, mainly genetic markers called single nucleotide polymorphisms (SNPs) and expressed sequence tags, to discover markers for the construction of the first SNP genetic map for Pacific white shrimp. In total, 1344 putative SNPs were discovered, and out of 825 SNPs genotyped, 418 SNP markers from 347 contigs were mapped onto 45 sex-averaged linkage groups, with approximate coverage of 2071 and 2130 cM for the female and male maps, respectively. Comparative mapping to model organisms, Daphnia pulex and Drosophila melanogaster, revealed extensive rearrangement of genome architecture for L. vannamei, and that L. vannamei was more related to Daphnia pulex. This SNP genetic map lays the foundation for future shrimp genomics studies, especially the identification of genetic markers or regions for economically important traits.

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