作者: W. Brad Barbazuk , Patrick S. Schnable
DOI: 10.1007/978-1-61779-065-2_15
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摘要: Single nucleotide polymorphisms (SNPs) are single base differences between haplotypes. SNPs abundant in many species and valuable as markers for genetic map construction, modern molecular breeding programs, quantitative studies. readily mined from genomic DNA or cDNA sequence obtained individuals having two more distinct genotypes. While automated Sanger sequencing has become less expensive over time, it is still costly to acquire deep several "Next-generation" technologies that utilize new chemistries massively parallel approaches have enabled sequences be acquired at extremely high depths of coverage faster cost than traditional sequencing. One such method represented by the Roche/454 Life Sciences GS-FLX Titanium Series, which currently uses pyrosequencing produce up 400-600 million bases sequence/run (>1 reads, ~400 bp/read). This chapter discusses use high-throughput SNP discovery focusing on 454 maize cDNA, development a computational pipeline polymorphism detection, subsequent identification 7,000 putative Mo17 B73 maize. In addition, alternative alignment detection strategies implement Illumina short data processing visualization tools, reduced representation techniques reduce repeat DNA, thus enabling efficient analysis genome sequence, discussed.