Construction of a Genetic Linkage Map Based on SNP Markers, QTL Mapping and Detection of Candidate Genes of Growth-Related Traits in Pacific Abalone Using Genotyping-by-Sequencing

Pacific abalone ( Haliotis discus hannai ) is a commercially important high valued molluscan species. Its wild population has decreased in recent years. It widely cultured Korea. Traditional breeding programs have been implemented for hatchery production of seeds. To obtain more genetic information its molecular program, high-density linkage map and quantitative trait locus (QTL) three growth-related traits was constructed abalone. F1 cross with two parents were sampled to construct the using genotyping by sequencing (GBS). A total 664,630,534 clean reads 56,686 SNPs generated 3,345 segregating used consensus map. The spanned 1,747.023 cM 18 groups an average interval 0.55 cM. QTL analysis revealed significant LG10 on each trait. Both QTLs located telomere region chromosome. Moreover, four potential candidate genes identified region. Expression that these are involved growth regulation newly map, present study can be as valuable resources marker-assisted selection (MAS) program.