Quantitative genomic analyses in the pacific whiteleg shrimp litopenaeus vannamei

Khatkar, M.S., Zenger, K.R., Jones, D.B., Prochaska, Jeff, van der Steen, H.A.M., Jerry, D.R., and Raadsma, H.W. (2017) Quantitative genomic analyses in the pacific whiteleg shrimp litopenaeus vannamei. In: Proceedings of the Conference of the Association for the Advancement of Animal Breeding and Genetics (22) pp. 121-124. From: AAABG 2017: 22nd Conference of the Association for the Advancement of Animal Breeding and Genetics, 2-5 July 2017, Townsville, QLD, Australia.

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Abstract

Traditional genetic improvement programs for Pacific white-leg shrimp (Litopenaeus vannamei) rely on family selection to improve growth and disease resistance traits. DNA technologies can help in simplifying breeding schemes and increasing genetic gains particularly for complex or difficult to measure traits. Here we present the results of genome-wide association and whole genomic prediction analyses using average family allele frequencies and the family mean of a growth trait in a genetic resource population consisting 1,934 animals and 690 families of L. vannamei genotyped with 8,967 genome-wide SNPs. After correcting for FDR, no significant SNPs were detected for growth. The accuracy of DGV in mirror prediction is much higher (0.65-0.69) as compared to forward prediction. A SNP that may be closely linked to the sex locus was identified with the female being the heterogametic sex.

Item ID: 49824
Item Type: Conference Item (Research - E1)
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Date Deposited: 21 Aug 2017 00:25
FoR Codes: 07 AGRICULTURAL AND VETERINARY SCIENCES > 0704 Fisheries Sciences > 070401 Aquaculture @ 100%
SEO Codes: 83 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 8301 Fisheries - Aquaculture > 830105 Aquaculture Prawns @ 100%
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