Characterization and quantification of the transcriptome in a given "dead" tissue can identify genetic assets, which can be used to determine the regulatory mechanisms and set networks of gene expression.
The techniques commonly used for simultaneously measuring the concentration of a large number of different types of mRNA include microarrays and high-throughput sequencing via RNA-Seq.
Analysis from a serology postmortem can characterize the transcriptome of a particular tissue cell type, or compare the transcriptomes between various experimental conditions. Such analysis can be complementary to the analysis of thanatomicrobiome to better understand the process of transformation of the necromass in the hours and days following death.