HELP!RAPD product

[Feng Lin]

Hi !
Can anyone tell me the percentage that same-size  fragments in RAPD 
profiles are
homologous DNAs at Genus level( among Genera)? Did you check the same 
percentage at
Family level? Can I get any references on this kind of information?

Thank you very much for your help.

Feng Lin
SIchuan Univ.