usng biomaRt to get gene homologs

Question

[jiwpark00]

I have a list of text files that contain list of human gene names. I would like to get a list of their homologs in Drosophila and C. elegans.

I'm thinking biomaRt would be the way to go about this but can anyone help me? I've added gene names to transcript IDs before but never figured out how to add homologs names associated with the given set of gene names.

Thanks!