Genomic selection for white spot syndrome virus resistance in whiteleg shrimp boosts survival under an experimental challenge test.

ABSTRACT: 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 ranked on genomic breeding values for WSSV resistance. Two G₁ populations were prod

SUBMITTER: Lillehammer M 

PROVIDER: S-EPMC7688931 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature