Cross Fertilisation of Methodologies

This paper caught my eye. I've highlighted the point I found intriguing.

"Fungi belong to one of the largest and most diverse groups of living organisms. The evolutionary kinship within a fungal population has so far been inferred mostly from the gene-information–based trees (“gene trees”) constructed using a small number of genes. Since each gene evolves under different evolutionary pressure and time scale, it has been known that one gene tree for a population may differ from other gene trees for the same population, depending on the selection of the genes. We present whole-genome information-based trees (“genome trees”) using a variation of a computational algorithm developed to find plagiarism in two books, where we represent a whole-genomic information of an organism as a book of words without spaces."

I am sure there are many examples where methodology from one sphere is applied in another. Any thoughts?