Hello,
I am trying to use makeTxDbFromGFF to import my GFF3 file as a TxDb. Below is the code used and the links to the relevant files:
library(GenomicFeatures) chromlen <- read.delim("Puccinia_coronata_avenae_12SD80.primary.chromlen", header = FALSE) colnames(chromlen) <- c("chrom", "length") chromlen$is_circular <- FALSE txdb <- makeTxDbFromGFF(file="haus_expr_secreted_effectors_sd80_p.full.gff3", chrominfo=chromlen, dataSource="gff3 file of haustorial effectors from 12SD80", organism="Puccinia coronata")
https://s3.msi.umn.edu/txdb_troubleshooting/haus_expr_secreted_effectors_sd80_p.full.gff3
https://s3.msi.umn.edu/txdb_troubleshooting/Puccinia_coronata_avenae_12SD80.primary.chromlen
Most transcripts are successfully imported, but there are a number that aren't. The warning make TxDbFromGFF throws is "Warning message: In .reject_transcripts(bad_tx, because) : The following transcripts were rejected because they have stop codons that cannot be mapped to an exon."
Here's an example of what one of these offending transcripts looks like:
000335F EVM gene 37334 38135 . - . ID=PCA_SD_18895 000335F EVM mRNA 37334 38135 . - . ID=PCA_SD_18895-T1;Parent=PCA_SD_18895;note=SECRETED:SignalP(1-28) 000335F EVM exon 37334 37402 . - . ID=evm.model.000335F.12.exon5;Parent=PCA_SD_18895-T1 000335F EVM exon 37486 37561 . - . ID=evm.model.000335F.12.exon4;Parent=PCA_SD_18895-T1 000335F EVM exon 37661 37692 . - . ID=evm.model.000335F.12.exon3;Parent=PCA_SD_18895-T1 000335F EVM exon 37790 37874 . - . ID=evm.model.000335F.12.exon2;Parent=PCA_SD_18895-T1 000335F EVM exon 37966 38135 . - . ID=evm.model.000335F.12.exon1;Parent=PCA_SD_18895-T1 000335F EVM CDS 37334 37402 . - 0 ID=cds.evm.model.000335F.12;Parent=PCA_SD_18895-T1 000335F EVM CDS 37486 37561 . - 1 ID=cds.evm.model.000335F.12;Parent=PCA_SD_18895-T1 000335F EVM CDS 37661 37692 . - 0 ID=cds.evm.model.000335F.12;Parent=PCA_SD_18895-T1 000335F EVM CDS 37790 37874 . - 1 ID=cds.evm.model.000335F.12;Parent=PCA_SD_18895-T1 000335F EVM CDS 37966 38135 . - 0 ID=cds.evm.model.000335F.12;Parent=PCA_SD_18895-T1 000335F EVM start_codon 37400 37402 . + . ID=PCA_SD_18895-T1:start;Parent=PCA_SD_18895-T1 000335F EVM stop_codon 37966 37968 . + . ID=PCA_SD_18895-T1:stop;Parent=PCA_SD_18895-T1
As you can see, the stop codon is within the last exon, rather than the last exon ending on the stop codon. Is there anything I can do to get these transcripts successfully imported?
Thank you,
Marisa
> sessionInfo() R version 3.4.0 (2017-04-21) Platform: x86_64-apple-darwin15.6.0 (64-bit) Running under: macOS 10.13.5 Matrix products: default BLAS: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib LAPACK: /Library/Frameworks/R.framework/Versions/3.4/Resources/lib/libRlapack.dylib locale: [1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8 attached base packages: [1] stats4 parallel stats graphics grDevices utils datasets methods base other attached packages: [1] GenomicFeatures_1.28.5 AnnotationDbi_1.38.2 Biobase_2.36.2 GenomicRanges_1.28.6 GenomeInfoDb_1.12.3 IRanges_2.10.5 [7] S4Vectors_0.14.7 BiocGenerics_0.22.1 loaded via a namespace (and not attached): [1] bit64_0.9-7 splines_3.4.0 Formula_1.2-3 assertthat_0.2.0 latticeExtra_0.6-28 [6] blob_1.1.1 GenomeInfoDbData_0.99.0 Rsamtools_1.28.0 pillar_1.2.3 RSQLite_2.1.1 [11] backports_1.1.2 lattice_0.20-35 glue_1.2.0 digest_0.6.15 RColorBrewer_1.1-2 [16] XVector_0.16.0 checkmate_1.8.5 colorspace_1.3-2 htmltools_0.3.6 Matrix_1.2-14 [21] plyr_1.8.4 XML_3.98-1.11 pkgconfig_2.0.1 biomaRt_2.32.1 zlibbioc_1.22.0 [26] purrr_0.2.5 scales_0.5.0 BiocParallel_1.10.1 htmlTable_1.12 tibble_1.4.2 [31] ggplot2_2.2.1 SummarizedExperiment_1.6.5 nnet_7.3-12 lazyeval_0.2.1 survival_2.42-3 [36] magrittr_1.5 memoise_1.1.0 GGally_1.4.0 foreign_0.8-70 tools_3.4.0 [41] data.table_1.11.4 matrixStats_0.53.1 stringr_1.3.1 munsell_0.4.3 DelayedArray_0.2.7 [46] cluster_2.0.7-1 bindrcpp_0.2.2 Biostrings_2.44.2 compiler_3.4.0 rlang_0.2.1 [51] grid_3.4.0 RCurl_1.95-4.10 rstudioapi_0.7 htmlwidgets_1.2 bitops_1.0-6 [56] base64enc_0.1-3 gtable_0.2.0 DBI_1.0.0 reshape_0.8.7 reshape2_1.4.3 [61] R6_2.2.2 GenomicAlignments_1.12.2 gridExtra_2.3 knitr_1.20 dplyr_0.7.5 [66] rtracklayer_1.36.6 bit_1.1-14 bindr_0.1.1 Hmisc_4.1-1 stringi_1.2.2 [71] Rcpp_0.12.17 rpart_4.1-13 acepack_1.4.1 tidyselect_0.2.4