Annotation of differentially methylated region or based in methylkit using genomation, how to find annotation file?

Hi.
I am performing differential methylation analysis in grapevine (vitis vinifera). To annotate differentially methylated region or bases i need the annotation file i.e., bed file. From where should i find that annotation file?. For example in human the name of file is “refseq.hg18.bed.txt”

Thank you
Raj