hi Jerry (and Harry),

Thanks for your emails. We appreciate the fact that you use the UCSC 
Genome Browser, and in turn we try to provide the best possible support 
for our user community.

The existence of 2 competing bovine assemblies from different groups has 
posed a quandary for UCSC. We are funded and staffed to provide a 
browser on the NCBI reference assembly for this genome, which is 
currently the Btau_4.0 assembly from Baylor. Given the amount of work in 
our project queue and our lean staffing levels, generating and QAing a 
full browser on an alternative assembly would spread us thin and would 
require dropping other critical project tasks. It also requires a 
certain amount of customization on our part, since the Genome Browser 
isn't generally set up to provide alternative assembly versions of the 
same genome sequence release.

I believe it's inevitable that we'll encounter this situation more and 
more as genome sequencing and assembly becomes cheaper and easier, and 
will therefore have to take it into account in future project planning 
and staffing. However, to provide the bovine community with a more 
immediate solution, Angie's proposal of simply downloading and masking 
the MD3.0 assembly, then producing liftOver chains with the Btau_4.0 
assembly is our best option.

Cheers,
-Donna
----------------
Donna Karolchik
UCSC Genome Browser Project Manager
http://genome.ucsc.edu

Taylor, Jerry F. wrote:
> Angie:
> 
> On behalf of the Animal Genomics group at the University of Missouri, I would 
> like to add my support to that of the remainder of the community for UCSC to 
> implement a full UMD3.0 bovine browser. This assembly is of higher quality 
> than the Btau4.0 assembly and has become the de facto standard for the 
> community.
> 
> Regards,
> 
> Jerry
> 
> ***********************************************************
> Jeremy Taylor
> Professor and Wurdack Chair in Animal Genomics
> S135 ASRC
> University of Missouri
> 920 East Campus Drive
> Columbia, MO 65211-5300
> Voice: (573) 884-4946
> Fax: (573) 882-6827
> E-mail: [email protected]<mailto:[email protected]>
> http://animalgenomics.missouri.edu<http://animalgenomics.missouri.edu/>
> 
> "There is a general place in your brain, I think, reserved for 'the 
> melancholy of relationships past.' It grows and prospers as life progresses, 
> forcing you, finally, against your grain, to listen to country music."
> 
> Kary Mullis - Nobel Prize lecture December 8, 1993.
> 
> 
> _______________________________________________
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