This question is w/ regards to pre-processing whole genome resequencing data 
for mapping data to a reference yeast strain.

I'm having trouble joining paired end data. I have two files per sample (read1 
and read2).

I've successfully uploaded my fastq.gz files into galaxy using FTP. I have two 
fastq files for each direction per strain labelled for example:
(for the left hand dir)   130104_7001240_0133_AH0854ADXX.lane_2.CCGTCC.1.fastq
(for the right hand dir)   130104_7001240_0133_AH0854ADXX.lane_2.CCGTCC.2.fastq

Now once I groom each using FASTQ Groomer I'm trying to join them to get a 
single file and I'm joining 0% of the reads. So I think the header or directory 
is not in the correct format. E.g., the raw groomed reads for the left hand and 
right hand look like:

(for the left hand dir)   130104_7001240_0133_AH0854ADXX.lane_2.CCGTCC.1.fastq
@HWI-ST1240:133:H0854ADXX:2:1101:2716:1998 1:N:0:CCGTCC
@HWI-ST1240:133:H0854ADXX:2:1101:5045:1994 1:N:0:CCGTCC

(for the right hand dir)   130104_7001240_0133_AH0854ADXX.lane_2.CCGTCC.2.fastq

@HWI-ST1240:133:H0854ADXX:2:1101:2716:1998 2:N:0:CCGTCC




@HWI-ST1240:133:H0854ADXX:2:1101:5045:1994 2:N:0:CCGTCC


According to the wiki I think the fastq format should look something like this 
with /1 and /2 corresponding the each paired file.









Any suggestions on how to get the files in the correct format/header to be able 
to join them?

Last question, what is the tool to trim reads based on quality again?

Thanks very much gentle people


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