RAPD markers as predictors of infectious hypodermal and hematopoietic necrosis virus (IHHNV) resistance in shrimp (Litopenaeus stylirostris)

Genome Génome / Conseil National De Recherches Canada
Suzanne E HizerDenise K Garcia

Abstract

Random amplified polymorphic DNA (RAPD) fingerprints of two shrimp populations (Litopenaeus stylirostris) were compared to find genetic marker(s) that may be associated with infectious hypodermal and hematopoietic necrosis virus (IHHNV) resistance or susceptibility. Of the 100 10-mer random primers and 100 intersimple-sequence repeat (ISSR) primers screened, five provided markers specific to the Super Shrimp population and three provided markers specific to the wild caught population. The two populations were further characterized for relative viral load (reported as cycle threshold, CT) using real-time quantitative PCR with primers specific to the IHHNV genome. The beta-actin gene was amplified to serve as a control for normalization of the IHHNV viral load. The mean viral load was significantly lower (C(T) = 34.58; equivalent to 3.3 x 10(1) copies of IHHNV genome/ng DNA) in Super Shrimp than in the wild caught population (CT = 23.49; equivalent to 4.2 x 10(4) copies/ng DNA; P < 0.001; CT values are inversely related to viral load). A preliminary prediction model was created with Classification and Regression Tree (CART) software (Salford Systems, San Diego, Calif.), where the resultant decision tree uses the presence or absen...Continue Reading

References

May 1, 1992·Molecular Ecology·H HadrysB Schierwater
Jul 1, 1983·Journal of Invertebrate Pathology·D V LightnerT A Bell
May 1, 1993·PCR Methods and Applications·G A PennerG Fedak
Oct 1, 1993·Genome Génome / Conseil National De Recherches Canada·G A PennerG Fedak
Aug 1, 1996·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·L E TalbertT J Martin

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Citations

Jun 18, 2004·Immunological Reviews·Eric S LokerThomas B Kepler
Jan 21, 2004·Animal Genetics·S E HizerD K Garcia
Jun 19, 2008·Animal Genetics·S E HizerD K Garcia
Jun 13, 2006·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Pablo A QuijadaThomas C Osborn
Jun 13, 2006·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Joshua A UdallThomas C Osborn

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