The American Bryological and Lichenological Society (ABLS) has started a podcast to feature current research on bryophytes and lichens directly from the experts. Episode 1 focuses on transcriptomics. Let me try to break this down for you. Transcripts are small messages (mRNA) that are copied from the DNA and are used as templates to make proteins. -omics refers to a field of study. So transcriptomics is the study of transcripts. When you compare the transcripts from different organs or different developmental stages it can point toward genes that are turned on and off between the two, indicating those genes that potentially make them different. Episode 2 is about the sex lives of bryophytes and lichens. Fortunately no explanation on the topic is needed there.