Lark Seeds Advantage+ NBT Platform
Lark seeds recently announced our Advantage+ new breeding technology platform (NBT). Advantage+ uses next generation breeding tools such as CRISPR/RNP technology to accelerate the breeding process and offer solutions to industry challenges that would be difficult or impossible to solve through conventional breeding. At it’s core the Lark Advantage+ line provides hybrids with additional benefits for growers, processors and consumers while offering complete transparency.
The Advantage+ platform utilizes a unique DNA free approach to precision gene editing. Common editing approaches use a modified bacteria called Agrobacterium tumefaciens which is able to insert DNA into the host plant. The inserted DNA encodes the CRISPR ribonuclease protein (RNP) along with a small guide RNA. The Agrobacterium system can pose multiple issues for plant breeders. Because the editing system is incorporated into the plants own DNA it will stay active until it is eliminated via backcrossing requiring multiple generations that can add years to the project. In addition, the longer the editing system is active the higher to potential for unintended changes to other genes. Larks Advantage+ platform does not use Agrobacterium, instead the CRISPR RNP and guide RNA are directly inserted into host cells of the plant. There is no incorporation of any foreign DNA into the plant, the RNP simply finds it’s target and completes the edit. Within 24-48 hours the RNP and guide RNA are degraded naturally by the plant cell greatly reducing the possibility of any off-target edits and eliminating the need for further backcrossing saving both time and cost.
Because of the precision and DNA free nature of the Advantage+ system the end products are non-GMO by both U.S.A and Canadian regulatory standards, they are considered no different from conventionally bred varieties. In most cases the changes are as small as a single base pair of DNA which can either enhance, impair, or completely turn off a gene already present in the plant. Different versions of the same genes are often already present in wild tomato populations and could be incorporated into cultivated varieties but the process is time consuming, costly and most often incorporates additional genes from the wild donor that have undesirable effects known as linkage drag. The Advantage+ platform can achieve the same results in a much shorter timeline and without unintended undesirable effects from linkage drag dramatically accelerating the timeline to provide solutions for new challenges faced by growers, processors and consumers.