Tassel 5 Variance Component Annotation Pipeline (VCAP)

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Presentation transcript:

Tassel 5 Variance Component Annotation Pipeline (VCAP) Terry Casstevens, Jeff Glaubitz, Peter Bradbury, Liya Wang, Ed Buckler, Others April 11, 2016

VCAP Strategy…

VCAP Strategy… Using LDAK, determine subset of genotype with most heritability for given phenotype. Subsets can be created in many ways. http://dougspeed.com/ldak

VCAP Ways to Subset Genotype…

VCAP Strategy… Using subset of genotype sites / positions, estimate heritability compared to rest of dataset / genome.

Create Whole Kinship Matrix… ./run_pipeline.pl -importGuess <genotype file> -KinshipPlugin -method Centered_IBS -endPlugin -export whole.txt -exportType SqrMatrix

Create Subset and Rest Matrix… ./run_pipeline.pl -forkSubset -importGuess <genotype file> -FilterSiteBuilderPlugin -startChr 1 -endChr 1 -endPlugin -KinshipPlugin -method Centered_IBS -endPlugin -forkRest -SubtractDistanceMatrixPlugin -wholeMatrix whole.txt -endPlugin -inputSubset -export rest.txt -exportType SqrMatrixBin -forkExport -export subset.txt -exportType SqrMatrixBin -inputSubset

VCAP Strategy… ldak.4.9.fast --reml vcap/ResultsKinship_9 --mgrm kinship_list.txt --pheno 282/phenotypes/BetaCarotene.txt --kinship-details NO

LDAK REML Results…

run_pipeline.pl -VCAPScanPlugin –help VCAPScanPlugin <options> -method <Scan method> : Scan method [Chromosome, Site_Blocks, Bed_File] (Default: Chromosome) -numSitesPerBlock <Num Sites Per Block> : For Site_Blocks method, this sets number of sites per block. Blocks do not span chromosomes. (Default: 10000) -bedFile <Bed File> : For Bed_File method, this specifies bed file to use. Each line / range in the bed file will be a block in the scan. -phenotypeFile <Phenotype File> : The phenotype file to use with LDAK. Must have only one phenotype. (required) -ldakCommand <Ldak Command> : Command to call LDAK. If not on PATH, full pathname needed. (Default: ldak.4.9.fast) -outputDir <Output Dir> : Directory to output kinship matrices and LDAK reml results. (Default: .) -wholeMatrix <Whole Matrix> : Kinship matrix of whole genotype dataset. This will be created if not specified. Must have been exported from Tassel with export type SqrMatrixBin.

VCAPScanPlugin Example… run_pipeline.pl -importGuess 282/Maize282_ZeaGBSv27impV5_MAF02_A GPv3.hmp.txt.gz -VCAPScanPlugin -method Chromosome -phenotypeFile 282/phenotypes/BetaCarotene.txt -outputDir vcap -endPlugin

LDAK REML Results…

VCAPScanPlugin Example… run_pipeline.pl -importGuess 282/Maize282_ZeaGBSv27impV5_MAF02_ AGPv3.hmp.txt.gz -VCAPScanPlugin - method Site_Blocks -phenotypeFile 282/phenotypes/TotalCarotenoids.txt - outputDir vcap -endPlugin

LDAK REML Results…

LDAK REML Results for DTA…