Contents

1 Installation

if (!requireNamespace("BiocManager", quietly = TRUE))
     install.packages("BiocManager") 
# orthogene is only available on Bioconductor>=3.14
if(BiocManager::version()<"3.14") 
  BiocManager::install(update = TRUE, ask = FALSE)

BiocManager::install("orthogene")
library(orthogene)

data("exp_mouse")
# Setting to "homologene" for the purposes of quick demonstration.
# We generally recommend using method="gprofiler" (default).
method <- "homologene"  

2 Introduction

It’s not always clear whether a dataset is using the original species gene names, human gene names, or some other species’ gene names.

infer_species takes a list/matrix/data.frame with genes and infers the species that they best match to!

For the sake of speed, the genes extracted from gene_df are tested against genomes from only the following 6 test_species by default: - human - monkey - rat - mouse - zebrafish - fly

However, you can supply your own list of test_species, which will be automatically be mapped and standardised using map_species.

3 Examples

3.1 Mouse genes

3.1.1 Infer the species

matches <- orthogene::infer_species(gene_df = exp_mouse, 
                                    method = method)
## Preparing gene_df.
## sparseMatrix format detected.
## Extracting genes from rownames.
## 15,259 genes extracted.
## Testing for gene overlap with: human
## Retrieving all genes using: homologene.
## Retrieving all organisms available in homologene.
## Mapping species name: human
## Common name mapping found for human
## 1 organism identified from search: 9606
## Gene table with 19,129 rows retrieved.
## Returning all 19,129 genes from human.
## Testing for gene overlap with: monkey
## Retrieving all genes using: homologene.
## Retrieving all organisms available in homologene.
## Mapping species name: monkey
## Common name mapping found for monkey
## 1 organism identified from search: 9544
## Gene table with 16,843 rows retrieved.
## Returning all 16,843 genes from monkey.
## Testing for gene overlap with: rat
## Retrieving all genes using: homologene.
## Retrieving all organisms available in homologene.
## Mapping species name: rat
## Common name mapping found for rat
## 1 organism identified from search: 10116
## Gene table with 20,616 rows retrieved.
## Returning all 20,616 genes from rat.
## Testing for gene overlap with: mouse
## Retrieving all genes using: homologene.
## Retrieving all organisms available in homologene.
## Mapping species name: mouse
## Common name mapping found for mouse
## 1 organism identified from search: 10090
## Gene table with 21,207 rows retrieved.
## Returning all 21,207 genes from mouse.
## Testing for gene overlap with: zebrafish
## Retrieving all genes using: homologene.
## Retrieving all organisms available in homologene.
## Mapping species name: zebrafish
## Common name mapping found for zebrafish
## 1 organism identified from search: 7955
## Gene table with 20,897 rows retrieved.
## Returning all 20,897 genes from zebrafish.
## Testing for gene overlap with: fly
## Retrieving all genes using: homologene.
## Retrieving all organisms available in homologene.
## Mapping species name: fly
## Common name mapping found for fly
## 1 organism identified from search: 7227
## Gene table with 8,438 rows retrieved.
## Returning all 8,438 genes from fly.
## Top match:
##   - species: mouse 
##   - percent_match: 92%

3.2 Rat genes

3.2.1 Create example data

To create an example dataset, turn the gene names into rat genes.

exp_rat <- orthogene::convert_orthologs(gene_df = exp_mouse, 
                                        input_species = "mouse", 
                                        output_species = "rat",
                                        method = method)

3.2.2 Infer the species

matches <- orthogene::infer_species(gene_df = exp_rat, 
                                    method = method)

3.3 Human genes

3.3.1 Create example data

To create an example dataset, turn the gene names into human genes.

exp_human <- orthogene::convert_orthologs(gene_df = exp_mouse, 
                                          input_species = "mouse", 
                                          output_species = "human",
                                          method = method)

3.3.2 Infer the species

matches <- orthogene::infer_species(gene_df = exp_human, 
                                    method = method)

4 Additional test_species

You can even supply test_species with the name of one of the R packages that orthogene gets orthologs from. This will test against all species available in that particular R package.

For example, by setting test_species="homologene" we automatically test for % gene matches in each of the 20+ species available in homologene.

matches <- orthogene::infer_species(gene_df = exp_human, 
                                    test_species = method, 
                                    method = method)

5 Session Info

utils::sessionInfo()
R version 4.3.1 (2023-06-16)
Platform: aarch64-apple-darwin20 (64-bit)
Running under: macOS Monterey 12.6.7

Matrix products: default
BLAS:   /Library/Frameworks/R.framework/Versions/4.3-arm64/Resources/lib/libRblas.0.dylib 
LAPACK: /Library/Frameworks/R.framework/Versions/4.3-arm64/Resources/lib/libRlapack.dylib;  LAPACK version 3.11.0

locale:
[1] C/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

time zone: America/New_York
tzcode source: internal

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] orthogene_1.6.1  BiocStyle_2.28.0

loaded via a namespace (and not attached):
 [1] gtable_0.3.3              babelgene_22.9           
 [3] xfun_0.39                 bslib_0.5.0              
 [5] ggplot2_3.4.2             htmlwidgets_1.6.2        
 [7] rstatix_0.7.2             lattice_0.21-8           
 [9] vctrs_0.6.3               tools_4.3.1              
[11] generics_0.1.3            yulab.utils_0.0.6        
[13] parallel_4.3.1            tibble_3.2.1             
[15] fansi_1.0.4               highr_0.10               
[17] pkgconfig_2.0.3           Matrix_1.5-4.1           
[19] data.table_1.14.8         homologene_1.4.68.19.3.27
[21] ggplotify_0.1.0           lifecycle_1.0.3          
[23] farver_2.1.1              compiler_4.3.1           
[25] treeio_1.24.2             munsell_0.5.0            
[27] carData_3.0-5             ggtree_3.8.0             
[29] ggfun_0.1.1               gprofiler2_0.2.2         
[31] htmltools_0.5.5           sass_0.4.6               
[33] yaml_2.3.7                lazyeval_0.2.2           
[35] plotly_4.10.2             pillar_1.9.0             
[37] car_3.1-2                 ggpubr_0.6.0             
[39] jquerylib_0.1.4           tidyr_1.3.0              
[41] cachem_1.0.8              grr_0.9.5                
[43] magick_2.7.4              abind_1.4-5              
[45] nlme_3.1-162              tidyselect_1.2.0         
[47] aplot_0.1.10              digest_0.6.31            
[49] dplyr_1.1.2               purrr_1.0.1              
[51] bookdown_0.34             labeling_0.4.2           
[53] fastmap_1.1.1             grid_4.3.1               
[55] colorspace_2.1-0          cli_3.6.1                
[57] magrittr_2.0.3            patchwork_1.1.2          
[59] utf8_1.2.3                broom_1.0.5              
[61] ape_5.7-1                 withr_2.5.0              
[63] scales_1.2.1              backports_1.4.1          
[65] rmarkdown_2.22            httr_1.4.6               
[67] ggsignif_0.6.4            evaluate_0.21            
[69] knitr_1.43                viridisLite_0.4.2        
[71] gridGraphics_0.5-1        rlang_1.1.1              
[73] Rcpp_1.0.10               glue_1.6.2               
[75] tidytree_0.4.2            BiocManager_1.30.21      
[77] jsonlite_1.8.5            R6_2.5.1