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Do you mean to extract the gene IDs corresponding to a set of gene names?
I need it for all the A thaliana genes. For example,
Geneid | Genename |
AT4G21690.1 | GA3OX3 |
You can use BioMart. Just give as input a list of arabidopsis gene IDs or gene names, and for the output you can select "
Gene stable ID" and "Gene name" attributes. Is this what are you looking for?If you're working in R, you can use BioMartR. We have been very successful with it. However, there are a few times when the service (on the BioMart end) might be running slow or be unavailable, so make sure to account for that vs. thinking your R script has an error.