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 4.4.0 alpha (2024-03-27 r86216)
Platform: aarch64-apple-darwin20
Running under: macOS Ventura 13.6.5

Matrix products: default
BLAS:   /Library/Frameworks/R.framework/Versions/4.4-arm64/Resources/lib/libRblas.0.dylib 
LAPACK: /Library/Frameworks/R.framework/Versions/4.4-arm64/Resources/lib/libRlapack.dylib;  LAPACK version 3.12.0

locale:
[1] en_US.UTF-8/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_1.10.0 BiocStyle_2.32.0

loaded via a namespace (and not attached):
 [1] gtable_0.3.4              babelgene_22.9           
 [3] xfun_0.43                 bslib_0.6.2              
 [5] ggplot2_3.5.0             htmlwidgets_1.6.4        
 [7] rstatix_0.7.2             lattice_0.22-6           
 [9] vctrs_0.6.5               tools_4.4.0              
[11] generics_0.1.3            yulab.utils_0.1.4        
[13] parallel_4.4.0            tibble_3.2.1             
[15] fansi_1.0.6               highr_0.10               
[17] pkgconfig_2.0.3           Matrix_1.7-0             
[19] data.table_1.15.4         homologene_1.4.68.19.3.27
[21] ggplotify_0.1.2           lifecycle_1.0.4          
[23] farver_2.1.1              compiler_4.4.0           
[25] treeio_1.28.0             munsell_0.5.0            
[27] carData_3.0-5             ggtree_3.12.0            
[29] ggfun_0.1.4               gprofiler2_0.2.3         
[31] htmltools_0.5.8           sass_0.4.9               
[33] yaml_2.3.8                lazyeval_0.2.2           
[35] plotly_4.10.4             pillar_1.9.0             
[37] car_3.1-2                 ggpubr_0.6.0             
[39] jquerylib_0.1.4           tidyr_1.3.1              
[41] cachem_1.0.8              grr_0.9.5                
[43] magick_2.8.3              abind_1.4-5              
[45] nlme_3.1-164              tidyselect_1.2.1         
[47] aplot_0.2.2               digest_0.6.35            
[49] dplyr_1.1.4               purrr_1.0.2              
[51] bookdown_0.38             labeling_0.4.3           
[53] fastmap_1.1.1             grid_4.4.0               
[55] colorspace_2.1-0          cli_3.6.2                
[57] magrittr_2.0.3            patchwork_1.2.0          
[59] utf8_1.2.4                broom_1.0.5              
[61] ape_5.7-1                 withr_3.0.0              
[63] scales_1.3.0              backports_1.4.1          
[65] httr_1.4.7                rmarkdown_2.26           
[67] ggsignif_0.6.4            memoise_2.0.1            
[69] evaluate_0.23             knitr_1.45               
[71] viridisLite_0.4.2         gridGraphics_0.5-1       
[73] rlang_1.1.3               Rcpp_1.0.12              
[75] glue_1.7.0                tidytree_0.4.6           
[77] BiocManager_1.30.22       jsonlite_1.8.8           
[79] R6_2.5.1                  fs_1.6.3