Error in aligning bowtie index files with ebwtl format while running tophat
0
0
Entering edit mode
6.2 years ago

I have used bowtie-1.1.1 to create index files.Now while running tophat

$ /opt/tophat-1.3.0.Linux_x86_64/tophat -o /u01/neeraj1/divya/12hr_fastq/sample/AC12_1/Trim_res/ -r20 /u01/neeraj1/divya/12hr_fastq/sample/AC12_1/Trim_res/1/index /u01/neeraj1/divya/12hr_fastq/sample/AC12_1/Trim_res/paired_R1_1.fastq /u01/neeraj1/divya/12hr_fastq/sample/AC12_1/Trim_res/paired_R2_2.fastq

[Tue Sep 18 13:19:09 2018] Beginning TopHat run (v1.3.0)
-----------------------------------------------
[Tue Sep 18 13:19:09 2018] Preparing output location /u01/neeraj1/divya/12hr_fastq/sample/AC12_1/Trim_res//
[Tue Sep 18 13:19:09 2018] Checking for Bowtie index files
Error: Could not find Bowtie index files /u01/neeraj1/divya/12hr_fastq/sample/AC12_1/Trim_res/1/index.*

my indexing files are in ebwtl format. Both the indexing files and the paired reads are in same folder but m still not able to troubleshoot.

RNA-Seq • 1.1k views
ADD COMMENT
1
Entering edit mode

* Insert the "don't use TopHat anymore" twitter post here *

ADD REPLY
1
Entering edit mode

Hello divchauhan07,

You should know that the old 'Tuxedo' pipeline of Tophat and Cufflinks is no longer the "advisable" tool for RNA-seq analysis. The software is deprecated/ in low maintenance and should be replaced by HISAT2, StringTie and ballgown. See this paper: Transcript-level expression analysis of RNA-seq experiments with HISAT, StringTie and Ballgown. There are also other alternatives, including alignment with STAR and bbmap, or pseudo-alignment using salmon.

ADD REPLY
0
Entering edit mode

Why don't you use bowtie mapping after bowtie indexing ?

ADD REPLY
0
Entering edit mode

In addition to the other remarks: please use up to date software. Tophat 1.3.0 was released more than 7 years ago.

ADD REPLY

Login before adding your answer.

Traffic: 2495 users visited in the last hour
Help About
FAQ
Access RSS
API
Stats

Use of this site constitutes acceptance of our User Agreement and Privacy Policy.

Powered by the version 2.3.6