DNA sequence origin mapping [blast]

Question

[Shicheng Guo]

Hi All,

Suppose, I have a fa file with 1000 DNA fragment (100bp each) from difference species. Now I want to judge the species origin of each fragment, How should I do?

I tried blast. the blast would give me lots of result for each fragment. but I have 1000 fragment? Can I set blast to show me one result for each fragment? and output these result for 1000 fragment simultaneously?

Max matches in a query range =1?

Max target sequences =1?

Thanks

Answer 1

[Benn]

Did you try to blast the sequences?

[Shicheng Guo]

the blast would give me lots of result for each fragment. but I have 1000 fragment? Can I set blast to show me one result for each fragment? and output these result for 1000 fragment simultaneously?

[5heikki]

Yes you can. Read the manual and use google.