All Questions
Tagged with assembly long-reads
13
questions
2
votes
2
answers
68
views
Longstitch error make: command: Command not found *** No rule to make target
I installed Longstitch and ran the test script with no issues. The output files matched the expected output files. But when I am now trying to run Longstitch on my own data I am getting this error.
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- 21
2
votes
2
answers
69
views
Calling isoforms from long read data generated from partially degraded RNA
What will be the best tool to call isoforms from long read data generated from partially degraded RNA. By mistake we processed some samples with poor quality RNA to generate long read. Now we are ...
- 191
1
vote
2
answers
794
views
Is it possible to filter contaminated reads for raw PacBio sequences (not HiFi reads) before assembly?
De novo genome assembly for non-model organisms face the issue of bacterial contamination. For assembled contigs with mostly bacterial-like sequences (based on BLAST search), the entire contig can be ...
1
vote
1
answer
998
views
Difference between paired-end, mate-pair and long read
I writing here because I have some questions for you.
I wondered what the essential differences were between paired-end, ...
- 199
2
votes
1
answer
148
views
PacBio long-reads impact in transcriptome de novo assembly?
We are strongly interested in assembly a good transcriptome of reference for a non-model organism and build a local database. We have sequenced the same individual with Illumina (150 millions of pair-...
2
votes
0
answers
353
views
Platanus-allee phasing fail: Error(13): Error, SolveDBG exception!
I am using Platanus-allee 2.2.2 for heterozygous genome (~500mb) assembly with Illumina short reads and PacBio reads input data.
I have the file contigs.fa from short reads but phasing step with ...
- 21
2
votes
3
answers
258
views
What assembler is appropriate for High-Fidelity PacBio reads
What assembler is appropriate for High-Fidelity PacBio reads?
For example, canu is good for high-error PacBio reads. But what algorithm to use for HiFi reads? Would it be OK to use canu without the ...
- 2,469
0
votes
1
answer
821
views
nanopore - where to retrieve information from the basecaller used
Where can I find information about the basecaller used in a specific nanopore run (we have a Gridion machine)?
I know already that we have Guppy v. 3.0.3, which I ...
- 283
2
votes
1
answer
430
views
Is nanopolish worth it since faster polishing software is available?
For Oxford Nanopore contigs produced by any long-read assembler has anyone performed any benchmarks to compare the polishing tools racon, ...
- 3,181
7
votes
1
answer
380
views
wtdbg2: practical implications of k-mer fsize and psize choice
I am using wtdbg2 2.3 to assemble a human genome (sequenced on PromethION from a cell line). I filtered out reads with low average quality, and now I am trying to determine the parameters that will ...
- 5,090
3
votes
1
answer
141
views
Scaffolding a genome with hybrid data
I am assembling a ~500MB genome, and have ~150x long reads and ~200x 150bp PE short reads, with a ~400bp insert size.
I've done a lot of work with minimap+miniasm, and have what I think is a good set ...
- 972
18
votes
1
answer
652
views
How can I improve a long-read assembly with a repetitive genome?
I'm currently trying to assembly a genome from a rodent parasite, Nippostrongylus brasiliensis. This genome does have an existing reference genome, but it is highly fragmented. Here are some ...
- 14.7k
19
votes
3
answers
699
views
How to deal with heterozygosity during polishing of genome assembly based on long reads?
All the long-read sequencing platforms are based on single-molecule sequencing which causes higher per-base error rates. For this reason a polishing step was added to genome assembly pipelines - ...
- 5,632