Hi David,

This should get you there:

mart = useMart('ENSEMBL_MART_ENSEMBL',dataset='mmusculus_gene_ensembl',
host="may2012.archive.ensembl.org")

Cheers,
Steffen



On Wed, Aug 29, 2012 at 10:10 AM, lemon tree <lemon.wang218@gmail.com>wrote:

> Dear All,
>    Recently, I found the mouse gene annotation in biomart had been changed
> to the version GRCm38 (mm10). However, I want to use mm9 version.
> Could anyone give some suggestions about how to do this? My code is
> mart <- useMart(biomart="ensembl",dataset="mmusculus_gene_ensembl")
>
> Thanks!
>
> Best all!
>
> David!
>
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