Genomic selection for white spot syndrome virus resistance in whiteleg shrimp boosts survival under an experimental challenge test
Marie Lillehammer, Rama Bangera, Marcela Salazar, Sergio Vela, Edna C Erazo, Andres Suarez, James Cock, Morten Rye, Nicholas Andrew Robinson
Scientific Reports | NATURE RESEARCH | Published : 2020
White spot syndrome virus (WSSV) causes major worldwide losses in shrimp aquaculture. The development of resistant shrimp populations is an attractive option for management of the disease. However, heritability for WSSV resistance is generally low and genetic improvement by conventional selection has been slow. This study was designed to determine the power and accuracy of genomic selection to improve WSSV resistance in Litopenaeus vannamei. Shrimp were experimentally challenged with WSSV and resistance was evaluated as dead or alive (DOA) 23 days after infestation. All shrimp in the challenge test were genotyped for 18,643 single nucleotide polymorphisms. Breeding candidates (G0) were ranke..View full abstract
Awarded by Research Council of Norway
The research was funded by the Research Council of Norway (project number 244131) and supported by the Norwegian Institute of Food, Fisheries and Aquaculture (Nofima) and Benchmark Genetics. High throughput sequencing was performed by the Norwegian Sequencing Centre (www.sequencing.uio.no), a national technology platform hosted by the University of Oslo and Oslo University Hospital and supported by the "Functional Genomics" and "Infrastructure" programs of the Research Council of Norway and the South-eastern Regional Health Authorities.