Glossary Term: ITS

May refer to Internal Transcribed Spacer or the official ITS barcode region for identifying fungi. This region is highly variable among species and it is flanked by highly conserved regions. The high sequence variability in the ITS allows us to distinguish between species, while the conserved regions (regions of low or no variation) flanking the ITS permit us to use the same primers for all fungi. As a result, the ITS region functions as a barcode for identification of fungal species. ITS (for internal transcribed spacer) refers to a piece of non-functional RNA situated between structural ribosomal RNAs (rRNA) on a common precursor transcript. Read from 5’ to 3’, this polycistronic rRNA precursor transcript contains the 5’ external transcribed sequence (5’ ETS), 18S rRNA, ITS1, 5.8S rRNA, ITS2, 28S rRNA and finally the 3’ETS.

Version: 1

Created: 2019-06-23 05:37:17 ACST (+0930)
Last modified: 2019-06-23 05:37:17 ACST (+0930)