I have a fasta file of contigs generated after assembling the reads using Velvet. Can anyone help me with
how to get information on the original read ids , contributing to each of the contig using the outputs from Velvet?
if you use the -amos_file yes flag for velvetg, you'll get an afg file which contains this information. The viewer Tablet can be used to inspect the results. There may be suitable parsers/converters for the afg file that help you get what you need.