Abstract
The decline in plant diversity is a pressing global issue driven by climate change, plant diseases, and humanactivities. This reduction in biodiversity poses significant threats to food security and the sustainability ofecosystems. Conserving wild plant species is crucial as they harbor genes that confer resistance to various bioticand abiotic stresses. One such important species is the Regel pear, endemic to Kazakhstan, known for itsresistance to drought and diseases. During research efforts, samples of Regel pear were collected from theirnatural habitats. Using SSR markers, researchers identified samples that exhibited resistance to scab. In a pioneeringstep, optimal in vitro cultivation conditions were developed to preserve this economically valuablespecies. The sterilization process for establishing in vitro culture and subsequent regeneration was established.The multiplication conditions were refined using DKW nutrient medium supplemented with 1.0 mg/lBAP, 0.5 mg/l IBA, and 0.2 mg/l GA3. These measures aim to ensure the long-term conservation of geneticdiversity and enhance agricultural resilience to environmental changes.