Gff Not Recognized In Cufflink

Question: Gff Not Recognized In Cufflink

6.2 years ago by

Qian Dong • 50 wrote:

Dear Team, I've been having a problem with cufflink regarding GFF files. I tried searching the mailing list first and failed to find an answer. Could you help me look at this? I downloaded my genome annotation GFF file from NCBI (soon I realized NCBI format may be a problem) for my bacterial RNA-seq data analysis. My GFF file looks like the following: '##gff-version 3#!gff-spec-version 1.20#!processor NCBI annotwriter##sequence-region NC_011420.2 1 4355543##species http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?id=414684NC_01 1420.2 RefSeqregion14355543.+.ID=id0;Dbxref=taxon:414684;Is_circular=true ;culture-collection=ATCC:51521;gb-synonym=Rhodocista centenaria SW;gbkey=Src;genome=chromosome;mol_type=genomic DNA;strain=SW%3B ATCC 51521NC_011420.2RefSeqgene113343.+. ID=gene0;Name=RC1_0011;Dbxref=GeneID:7008893;gbkey=Gene;locus_tag=RC1_ 0011 NC_011420.2RefSeqCDS113343.+0ID=cds0;Name=YP_002296275.1;Parent=gene0; Note=Contains a type I secretion target ggxgxdxxx repeat %282 copies%29 domain%3B Contains a Cadherin domain%3B identified by match to protein family HMM PF02789;Dbxref=Genbank:YP_002296275.1,GeneID:7008893;gbkey=CDS;product =hypothetical protein;protein_id=YP_002296275.1;transl_table=11 I used this file for cufflink but all the FPKM values are 0. I checked out this link: http://cufflinks.cbcb.umd.edu/gff.html and thought that maybe the problem is because I don't have any mRNA feature in my gff file. Since I am dealing with a bacterial genome, there is no exon/intron or UTR info needed. Therefore I modified my GFF file into the following: ##gff-version 3#!gff-spec-version 1.20#!processor NCBI annotwriter##sequence-region NC_011420.2 1 4355543##species http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?id=414684NC_01 1420.2 RefSeqregion14355543.+.ID=id0;Dbxref=taxon:414684;Is_circular=true ;culture-collection=ATCC:51521;gb-synonym=Rhodocista centenaria SW;gbkey=Src;genome=chromosome;mol_type=genomic DNA;strain=SW%3B ATCC 51521NC_011420.2RefSeqmRNA113343.+. ID=mRNA0;Name=RC1_0011;Dbxref=GeneID:7008893;gbkey=Gene;locus_tag=RC1_ 0011 NC_011420.2RefSeqCDS113343.+0ID=cds0;Name=YP_002296275.1;Parent=mRNA0; Note=Contains a type I secretion target ggxgxdxxx repeat %282 copies%29 domain%3B Contains a Cadherin domain%3B identified by match to protein family HMM PF02789;Dbxref=Genbank:YP_002296275.1,GeneID:7008893;gbkey=CDS;product =hypothetical protein;protein_id=YP_002296275.1;transl_table=11 I re-ran cufflink however this time there is error reported. I can only tell from the report that there is a segmentation fault but not further details. The report is as follows: Error running cufflinks. return code = 139 Command line: cufflinks -q --no-update-check -I 100 -F 0.100000 -j 0.150000 -p 4 -G /galaxy/test_pool/pool5/files/000/327/dataset_327777.dat /galaxy/test_database/files/000/325/dataset_325086.dat [19:41:41] Loading reference annotation. Segmentation fault cp: cannot stat `/galaxy/test_pool/pool3/tmp/job_working_directory/000/170/170197/glob al_model.txt': No such file or directory cp: cannot stat `/galaxy/test_pool/pool3/tmp/job_working_directory/000/170/170197/isof orms.fpkm_tracking': No such file or directory cp: cannot stat `/galaxy/test_pool/pool3/tmp/job_working_directory/000/170/170197/gene s.fpkm_tracking': No such file or directory My questions will be: 1. Is there any way to modify a NCBI bacterial genome annotation GFF file to make it usable for cufflink? Our genome annotation is only available in NCBI, not ensemble or USDC so this is pretty much my only choice.. 2. Should I proceed with modifying the GFF file or should I convert it into GTF and use the GTF instead in cufflink? I am a biochemist and really new to the computer world so any advice will help! Thanks a lot, Qian -- Qian Dong Bauer Lab, MCBD Simon Hall: 313-317 212 S. Hawthorne Dr. Bloomington, IN 47405 Email:dong3@indiana.edu Lab Phone:812-855-8443

gff cufflinks rna-seq • 3.5k views

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modified 6.2 years ago by Jennifer Hillman Jackson ♦ 25k • written 6.2 years ago by Qian Dong • 50

6.2 years ago by

Jennifer Hillman Jackson ♦ 25k

United States

Jennifer Hillman Jackson ♦ 25k wrote:

Hello, The first thing to double check is that the chromosome identifier is an exact match between the reference genome and the reference annotation. The GFF3 file is naming the chromosome "NC_011420.2". The reference annotation chromosome should be named exactly the same way. Check this in the input BAM/SAM datasets or the original .fasta reference genome. Hopefully this finds the problem. Correcting mismatched names (due to various reasons) is the most common solution to this sort of issue: 'Tools on the Main server: Example', bullet item #2: http://wiki.g2.bx.psu.edu/Support#Interpreting_scientific_results Best, Jen Galaxy team -- Jennifer Jackson http://galaxyproject.org

ADD COMMENT • link written 6.2 years ago by Jennifer Hillman Jackson ♦ 25k

Hi, I'm getting this cuffmerge error on our local Galaxy instance. I assume it is because it doesn't have the hg19 reference genome. Can you please tell me how I would include into this Galaxy installation? Thank you.

ADD REPLY • link written 6.2 years ago by kauerbach@comcast.net • 40

Hi Qian, This is the source of the mismatch. In fasta format, any text between the leading ">" and the first whitespace (tab, space, etc) is considered the "identifier". http://wiki.g2.bx.psu.edu/Support#Error_from_tools http://wiki.g2.bx.psu.edu/Learn/Datatypes#Fasta Which in your case is this: gi|289546492|ref|NC_011420.2| The identifier must be changed to be only this: NC_011420.2 to be consistent with the GFF file. There are many ways to do this, one simple way is to use the tools in 'Text Manipulation'. Use 'Remove beginning of a file' to strip the first line. Then create a plain text file on your computer, one line, with just the identifier content like this: Very important - do not make the file more than one line long - meaning do not add in an extra 'return' at the end of the first line. The plain text file just needs these characters - no more - including no whitespace characters (spaces, tabs, newlines). Upload this file to your instance as text and "Concatenate datasets" with the sequence file that had the first line removed, placing this identifier dataset on top. Then change the datatype back to ".fasta" on the final dataset, if necessary (click on the pencil icon). Then re-run Bowtie to have the identifiers in your SAM file consistent with the GFF file. After running Bowtie, be certain to sort the resulting dataset before running Cufflinks. Tophat produces sorted output, but Bowtie does not and Cufflinks requires sorted input. http://main.g2.bx.psu.edu/u/jeremy/p/transcriptome-analysis-faq#faq2 Take care, Jen Galaxy team -- Jennifer Jackson http://galaxyproject.org

ADD REPLY • link written 6.2 years ago by Jennifer Hillman Jackson ♦ 25k

Hello, Instructions for including a new genome indexed for tools, including how to download the same indexes used on the public Main Galaxy instance hosted at http://usegalaxy.org, are in these wikis: http://wiki.g2.bx.psu.edu/Admin/Data%20Integration http://wiki.g2.bx.psu.edu/Admin/NGS%20Local%20Setup The "dbkey" that you will want to use is simply "hg19" for this genome, should you use the rsync service. Going forward, the galaxy-dev@bx.psu.edu mailing list would be a good choice for local install questions. The development community can help solve more complex problems as they come up and/or you might be interested in following discussions: http://wiki.g2.bx.psu.edu/Support#Mailing_Lists http://wiki.g2.bx.psu.edu/Mailing%20Lists Hopefully this helps! Jen Galaxy team -- Jennifer Jackson http://galaxyproject.org

ADD REPLY • link written 6.2 years ago by Jennifer Hillman Jackson ♦ 25k

Hi, I'm also getting these error when I run cuffmerge. It was run without a reference so it shouldn't have anything to do with the reference. Can you please tell me how to fix this? Thank you.

ADD REPLY • link written 6.2 years ago by kauerbach@comcast.net • 40

Dear Jennifer, My .fasta reference genome is like this: '>gi|289546492|ref|NC_011420.2| Rhodospirillum centenum SW chromosome, complete genome' and in the SAM file generated by BOWTIE it says: @SQ SN:gi|289546492|ref|NC_011420.2| LN:4355543 So I think they are all the same as "NC_011420.2". Is there anything else I can try? Thank you, Qian -- Qian Dong Bauer Lab, MCBD Simon Hall: 313-317 212 S. Hawthorne Dr. Bloomington, IN 47405 Email:dong3@indiana.edu Lab Phone:812-855-8443

ADD REPLY • link written 6.2 years ago by Qian Dong • 50

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