Prickle-free blackberry (Rubus subgenus Rubus) canes are strongly preferred by growers due to food and worker safety concerns and damage to fruit from mechanical injury by prickles. Johns et al. identified a single locus controlling prickle-free canes. Image credit: Gerardo Antonio Romero. Blackberry is a specialty crop with an increasing share of the fresh berry market. The growth in demand and rising production costs have resulted in a need for...
