Tagged with #readbackedphasing
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Dear GATK team,

I'd like to be able to work through the calculations for the PQ (ReadBackedPhasing) and TP (PhaseByTransmission) values for small toy data sets. Is there an article or document anywhere that describes the algorithms used to calculate PQ and TP? Unfortunately I'm only a beginner at Java, so can't answer my questions by looking at the source code.

Thanks for all the great work you do with the GATK.

Best wishes,

Katherine

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Hello GATK Team,

there are currently two walkers for phasing in the GATK PhaseByTransmission and ReadBackedPhasing. Because of their different information source (PhaseByTransmission has the called VCF file, ReadBackedPhasing the BAM files) these can produce different or complementary genotypes. There used to be a walker for this job "MergeAndMatchHaplotypes" but it seems to be discontinued.

What is the current recommendation for Trios? Only use PhaseByTransmission?

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Hi developers, Could you share the detailed ReadBackedPhasing algoritm documents with me? As I don't find much more about the algorithm except GATK website, but i have some questions need to read the algorithm carefully and totally understand ReadBackedPhasing.

THanks very much. Yujian

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I have applied PhaseByTransmission on a trio with a ped file and now want to run ReadBackedPhasing. However, each of the trio variant calls were called from a different BAM file (as each was from a different individual). In the ReadBackedPhasing documentation it only mentions using the program with a single bam. Does this mean that I need to merge the bams for each of the three individuals into a single bam? If so, do you have any suggested programs that work well with GATK?

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