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Development of gene-targeted SNP markers for genomic mapping in Pacific abalone Haliotis discus hannai Ino.

Authors
Type
Published Article
Journal
Molecular Biology Reports
1573-4978
Publisher
Springer-Verlag
Publication Date
Volume
37
Issue
8
Pages
3779–3784
Identifiers
DOI: 10.1007/s11033-010-0032-3
PMID: 20217241
Source
Medline
License
Unknown

Abstract

Useful and novel DNA markers are needed for aquaculture genetics and breeding. In this study, we report the discovery and development of gene-targeted single nucleotide polymorphisms (SNPs) for genomic mapping in the Pacific abalone Haliotis discus hannai Ino. Single EST or EST-contigs from 66 genes that had positive BLASTx matches (E-value ≤ 1e-8) were used for polymerase chain reaction (PCR) amplification. PCR products from the two parents of one mapping family were directly sequenced, and 83 SNP loci were found from 17 genes. Allele-specific PCR (AS-PCR) was developed and optimized for genotyping of 11 SNP loci in 120 progeny of the mapping family. Nine of the loci conformed to the expected Mendelian ratio of 1:1 based on the χ(2) test (P > 0.05) and could potentially be used for linkage map construction. Our data also indicate that the sequencing of two parents may be a practical strategy for the discovery of informative SNPs for linkage mapping in a particular mapping population.

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