Rock2 and rock3, two new gain-of-function variants of the cytokinin receptors AHK2 and AHK3

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This invention describes two new gain-of-function genetic variants, rock2 and rock3, of the plant cytokinin receptor proteins AHK2 and AHK3. By introducing the nucleic acids encoding these variants into plants, it is possible to create transgenic plants with constitutively active cytokinin signaling. These genetically modified plants show enhanced growth, delayed leaf aging (senescence), bigger flowers, thicker stems, and up to 47% higher seed yields compared to non-modified plants.

Use CasesContent extracted from patent full text and abstract with AI.

• Genetic engineering of crop plants for enhanced productivity and improved traits.
• Production of high-yielding transgenic plants in agriculture, especially for crops in the Brassicaceae family (e.g., canola, cabbage, mustard, Arabidopsis).
• Development of ornamental plants with larger flowers and more robust stems.
• Generation of research models to study plant hormones and growth regulation.
• Improvement of biomass production for bioenergy crops.

BenefitsContent extracted from patent full text and abstract with AI.

• Significant increase in plant growth rates and biomass accumulation.
• Substantial yield improvements, with seed yields increased by up to 47%.
• Delayed onset of leaf senescence, resulting in longer-lived and healthier foliage.
• Potential to improve food security by raising productivity per plant or hectare.
• Enhanced ornamental value through bigger flowers and sturdier stems.
• Applicable to a wide range of plant species, especially those in the Brassicaceae family.
• Versatile engineering options due to the use of genetic cassettes and promoters.

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Patent Abstract

The present invention relates to two new gain of function variants of the cytokinin receptor proteins AHK2 and AHK3, namely rock2 and rock3, to transgenic organisms comprising at least one of said new gain-of-function cytokinin receptor variants and to a method for the manufacturing of a transgenic plant comprising at least one of the new gain-of-function variants.