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Items in PURPLE and links are the things you must modify. Change PURPLE items to BLACK when you save your page. 

Downsample reads


Community rating: ?????

Reduce the number of reads in fastq or fasta files to reduce overload of an assembler.


Test Data


Test data for this app appears directly in the Discovery Environment in the Data window under Community Data -> iplantcollaborative -> example_data -> directory. downsample_reads

Input File(s)

Use TerriblyIncomprehensible.txt and HorriblyWritten.txt from :



 from the directory above as test input.


When the app is run in the Discovery Environment, use the following parameters with the above input file(s) to get the output provided in the next section below.Use either the "

  • Default parameters


  • Default parameters only, no further configuration needed.


  • Use these parameters within the DE app interface:
    • parameter name - value/setting
    • parameter name - value/setting
  • only, except change unpaired to paired reads.


Output File(s)

Expect a text file as output files named after the input files as output. For the test case, the output file files you will find in the example_data directory is named BeautifulProse.txt.are named:



Tool Source for App