Annelids win again: the first evidence of Hox antisense transcription in Spiralia.
Elena L. Novikova, Н. И. Бакаленко, Milana A. Kulakova
The paper identifies antisense transcripts of Hox genes in two annelids, suggesting Hox antisense transcription is ancestral in bilaterians.
bioRxiv · Jan 30, 2021 · PreprintDevelopmental Biology