** Shares of plant-based biotech co Calyxt Inc CLXT.O
double to $0.35 premarket
** Co enters into an all-stock merger deal with Cibus, an
agriculture-based gene-editing company
** Combined co to trade on Nasdaq Capital Market by the name
Cibus Inc after deal close
** Cibus co-founder Rory Riggs to become Chief Executive
Officer and Chairman of the combined co
** CLXT shareholders to own 5% of the combined co, after
deal close
** CLXT had declined 91% in last 12 months
(Reporting by Aditya Samal)
((Aditya.Samal@thomsonreuters.com;))