simon.twigger's blog

SNPlotyper poster from Cold Spring Harbor

Here's the PDF of the poster I presented at the CSH Rat Genome meeting earlier in December. It includes an overview of the user interface and what each option can be used for, along with some example analyses:

1. Gimap region of RNO4 showing identification of informative SNPs between a group of strains.
2. Analysis of LEXF x FXLE recombinant inbred lines in the region of a Cholesterol level QTL on RNO5
3. Hypertensive vs Normotensive strains across a region of RNO5 associated with many hypertension QTL.

RGD tutorial for Cold Spring Harbor

As part of the demo we're doing at the Cold Spring Harbor rat meeting this year, I've created a brief tutorial/walk through of some of the tools on RGD for use in the afternoon demo session. You can download the PDF document and then follow the instructions to take a brief guided tour of some of the RGD features. It covers basic searching, using the ontologies and GViewer to search in more specific ways and then finishes with QTLs and finding and downloading cell cycle genes in a QTL region.

Clustering added to SNPlotyper tool

A region of Chr 10 with a variety of strains ordered using the clustering option.

I've just finished an enhancement to the SNPlotyper tool that connects the application up to the R statistical package so it can use hierarchical clustering to order the strains. This means that you can define a region, select the strains you wish to analyze and then use the clustering option to group the strains based on similar genotype across the region. You can still manually order the strains as before by using the drag and drop feature on the main SNPlotyper form.

SNPlotyper Updated

Sample SNPlotyper results showing SNP genotypes aligned with RGD GBrowse Gene track for Chromosome 17

I have updated the SNPlotyper tool (http://snplotyper.mcw.edu) with the full STAR SNP and genotype data. There were a few related bug fixes and interface improvements that went along with it too but now we have all 20,000+ SNPs and their genotypes in over 300 strains in the tool and able to be used.

Please feel free to give the tool a try and let me know how it goes. Any thoughts for improvements to the interface or other suggestions for the analyses would be most appreciated.

Simon.

MSCBB Poster for Apropos

Here's the poster we presented for the Apropos annotation tool at the MSCBB conference last Saturday (note its a rather large PDF at 6Mb). There was a pretty good turn out for this first annual meeting and the poster session was well attended. As an aside, the weather was great, the traffic was not so great (at least for those of use coming down from Milwaukee...) and powerpoint presentations still don't transfer seamlessly from PC to Mac.

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