[BioC] getGene function and size limit

[TM]

Hi

I am using the getGene function (biomart package) with a vector of ID :
ex : getGene(id = refSeqIDs, type = "refseq", mart = martObj)
It works with a vector length of 500 but with a length of 5000 it return 
NULL. Besides the vector i need to use has a length of 18000.
Is there any limit for the length of the vector ?
Thanks for your help.
TM

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MOUROT Tabaré
Stagiaire Master Pro BioInfo
Plateforme transcriptome
Institut de Génomique Fonctionnelle
141, rue de la Cardonille
34094 Montpellier Cedex 5

Tel : +33 (0)4 67 14 29 64
E-mail : tabare.mourot at igf.cnrs.fr


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