Comments (3)
Now that I've been looking at this a bit, I realize I made a mistake with the jellyfish count
run. My value for -s
was way off. Although now I'm having a difficult time determining how to calculate a value for this parameter. The documentation says:
The size parameter (given with -s) is an indication of the number k-mers that will be stored in the hash. For sequencing reads, this size should be the size of the genome plus the k-mers generated by sequencing errors. For example, if the error rate is e (e.g.Illumina reads, usually e~1%), with an estimated genome size of G and a coverage of c, the number of expected k-mers is G+Gcek.
So if the estimated genome size is 2.2 Gb and the coverage (for my PacBio Hifi sequencing?) was ~80X, the error rate was 1%, and the k-mer size I'm using is 31, should the value for -s
be 2200000000 + 2200000000 * 80 * 1 * 31 or 5458200000000? That can't be right. That seems completely insane...
from genomescope.
Continuing on with this, I reran jellyfish count
with -s 50G
and got the same results.
Attempting to run jellyfish count
with -s 5000G
and -s 500G
failed due to memory issues, so I'm attempting it with -s 100G
. If that doesn't produce something that makes more sense, I'm not entirely sure how to resolve this.
from genomescope.
I'm still getting the same issue. I'd love to know why that might be.
from genomescope.
Related Issues (20)
- smaller genome size and lower heterozygosity
- potentially poor fitting model for proposed tetraploid HOT 1
- FAQ not up to date regarding ploidy HOT 1
- No file uploaded error message HOT 3
- Low model fit while ran Genomescope 2.0
- Strange genomescope result HOT 1
- High heterozygous? HOT 3
- No file upload message HOT 1
- Unable to converge HOT 3
- 503 Service Unavailable HOT 2
- mergeing HiFi data of two samples didn't increase hetorozygosity
- Heterozygosity rate < 0 HOT 3
- expectations for pooled samples HOT 2
- Heterozygous tetraploid genome model fit HOT 2
- Model and observations don't converge HOT 3
- dup (in figure) and bias (in model.txt) HOT 2
- Follow up RE: Confounding GenomeScope Output HOT 5
- Ploidy determination HOT 1
- Heterozygous peak identified as errors? HOT 3
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