I am very new to bioinformatics analysis. I am trying to map a whole genome in galaxy, but I don't know exactly how to find my reference genome (chlamydomonas reinhardtii). I do know It is available on NCBI but don't know which file should be used as a reference genome. I mean: is the reference genome only one single file, or is it multiple files for each chromosome?
I'd be grateful if you could help me.