[BioC] homologs for xenopus laevis

[Mayte Suarez-Farinas]

Hi everybody

I have a list of entrezid of hsapiens and I am trying to find the  
homologs genes in zebrafish and xenopus laevis.
using package BiomaRt, function getHomolog I was able to do oit for  
zebrafish but
there is not database for xenopus laevis (only xenopus tropicalis). I  
will appreciate if somebody
can direct me to another solution.

best regards

Mayte