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difference between sra files - SRR n SRX

What's the difference between experiment SRA file (SRX file) and run SRA file (SRR files) apart from the point that an experiment contain a number of runs? Which one is more appropriate and precise to be used for SNP analysis ? Considering the point that runs gives a number of bcf files on assembly and it will be then difficult to compare them.

genome snp
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updated by Biostar Biostar • written by me.sr1510 • me.sr1510

have u looked inside the contents of each? what did you notice?

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written by BioinfGuru BioinfGuru

Both on fastq dump r converted to fastq files no such difference

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written by me.sr1510 • me.sr1510

and did u run fastqc on the fastq files created? was there any differences in the fastqc results?

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written by BioinfGuru BioinfGuru

Bt sir it doesn't answer which one of d two r better to use SRX OR SRR

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written by me.sr1510 • me.sr1510

Post an example of the accession you are looking at. There can be multiple samples in an experiment and you may need to use all of them. Multiple bcf files can be merged using bcftools.

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written by GenoMax GenoMax

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