Seqanswers Leaderboard Ad

Collapse

Announcement

Collapse
No announcement yet.
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • GATK UnifiedGenotyper calling way too many SNPs in vcf

    Alignments were done with bwa, paired end, converted to .bam and sorted with samtools.

    The following command works as expected. It makes a vcf file that is 10 kb, which is right.

    java -jar ../../../../GATK/1.1.23/GenomeAnalysisTK.jar -T UnifiedGenotyper -R genome3.fasta -I sort_filtered.bam -o GATK/regular.vcf -L Staphylococcus:164665-2689091 -dcov 100
    The following command makes a vcf file that is 57.5 kb

    java -jar ../../../../GATK/1.1.23/GenomeAnalysisTK.jar -T UnifiedGenotyper -R genome3.fasta -I sort_filtered.bam -o GATK/regular.vcf -L Staphylococcus:164663-2689091 -dcov 100
    What happens is that at base 2256558, something gets off by a base, so that it calls another 300,000 SNPs, because it's all out of sync. This doesn't happen in the first command, even though it covered almost exactly the same ground. The fasta looks fine. Has anyone else ever observed this?

Latest Articles

Collapse

  • seqadmin
    Latest Developments in Precision Medicine
    by seqadmin



    Technological advances have led to drastic improvements in the field of precision medicine, enabling more personalized approaches to treatment. This article explores four leading groups that are overcoming many of the challenges of genomic profiling and precision medicine through their innovative platforms and technologies.

    Somatic Genomics
    “We have such a tremendous amount of genetic diversity that exists within each of us, and not just between us as individuals,”...
    05-24-2024, 01:16 PM
  • seqadmin
    Recent Advances in Sequencing Analysis Tools
    by seqadmin


    The sequencing world is rapidly changing due to declining costs, enhanced accuracies, and the advent of newer, cutting-edge instruments. Equally important to these developments are improvements in sequencing analysis, a process that converts vast amounts of raw data into a comprehensible and meaningful form. This complex task requires expertise and the right analysis tools. In this article, we highlight the progress and innovation in sequencing analysis by reviewing several of the...
    05-06-2024, 07:48 AM

ad_right_rmr

Collapse

News

Collapse

Topics Statistics Last Post
Started by seqadmin, Yesterday, 01:32 PM
0 responses
10 views
0 likes
Last Post seqadmin  
Started by seqadmin, 05-24-2024, 07:15 AM
0 responses
199 views
0 likes
Last Post seqadmin  
Started by seqadmin, 05-23-2024, 10:28 AM
0 responses
221 views
0 likes
Last Post seqadmin  
Started by seqadmin, 05-23-2024, 07:35 AM
0 responses
232 views
0 likes
Last Post seqadmin  
Working...
X