I have some questions about the tool of Megablast in NGS:Mapping when I download the
needed indexes .
There are four indexes files we need for Megablast:htgs 28-Jan-2013 ,nt 28-Jan-2013,wgs
28-Jan-2013,phiX174;but there are too many types of the indexes file in
,for example :
nt.00.tar.gz,nt.01.tar.gz,nt.02.tar.gz....I don't know the difference among these
files ,and I don't which one I should choose to download.In addition ,I can't
find the index file for phiX174.
Could anyone help me and give me some advice please? Thank you very much.