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Facilitating analysis of genomic variation in Olympia oysters. Bioinformatics, FISH546 Mackenzie Gavery 3/14/13. GOALS. U tilize existing genomic resources (transcriptome) for RAD- Seq design Generate useful generic feature files ( gff ) to facilitate functional annotation of SNPs - PowerPoint PPT Presentation
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Facilitating analysis of genomic variation in Olympia oysters
Bioinformatics, FISH546Mackenzie Gavery3/14/13
GOALS• Utilize existing genomic resources
(transcriptome) for RAD-Seq design
• Generate useful generic feature files (gff) to facilitate functional annotation of SNPs
• Generate a workflow for annotating synonymous and non-synonymous SNPs in a non-model species*
Methods
• Starting material:• Transcriptome: 41,000 contigs• SNP Table (CLCBio) ~52,000• Annotations: blastx, GO• Tools:• Galaxy• Excel• Blastx
ResultsCut sites SNP w/in
50bpSNP w/in
100bp
NotI 118 43 64
SbfI 600 177 177
EcoRI 19,996 3,905 12,733
Results
• New data tracks:• Gene ID• GO annotation sub-groups• SNPs• Blastx regions (with frame)
Cut sites SNP w/in 50bp
SNP w/in 100bp
NotI 118 43 64
SbfI 600 177 177
EcoRI 19,996 3,905 12,733
Applications
• Assist with RAD-Seq experimental design• Ask interesting biological questions – are
there differences in the number of SNPs in housekeeping v. inducible genes?
Next steps• Do these SNPs result in functional changes
(i.e. do they change the protein)?1. Blastx custom output
-outfmt “6 sseqid, qseqid, frames…”
2. aachanges (Galaxy)
Next steps• Do these SNPs result in functional changes
(i.e. do they change the protein)?1. Blastx custom output
-outfmt “6 sseqid, qseqid, frames…”
2. aachanges (Galaxy)SNP bed
gene bed