Jianli Zhong

Hainan Institute of Biotechnology, Haikou, 570206, Hainan, China
Author    Correspondence author
International Journal of Molecular Evolution and Biodiversity, 2025, Vol. 15, No. 2   
Received: 12 Feb., 2025    Accepted: 18 Mar., 2025    Published: 02 Apr., 2025

This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

This study analyzed the genetic diversity characteristics and ecological adaptability mechanisms of the germplasm resources of Lindera aggregata in Qingchuan County, and revealed the influence of different ecological environments on the genetic variation and trait expression of Lindera aggregata. The study identified multiple functional genes closely related to key medicinal components (volatile oils, total phenols, total flavonoids) and stress resistance (drought resistance, cold resistance, and salt resistance), some of which showed significant expression differences under specific environmental stresses. The study found that the germplasm resources of Lindera aggregata in Qingchuan County have rich genetic diversity, and their genetic structure characteristics are significantly correlated with the ecological environment. Based on gene function annotation, a number of core genes regulating secondary metabolic synthesis and environmental adaptability were successfully excavated. Combined with the comprehensive evaluation of multiple traits, several excellent germplasms with outstanding comprehensive traits were screened, and regional adaptive cultivation strategies were constructed accordingly. This study not only provides a necessary meal card for the protection of Lindera aggregata germplasm resources, but also lays a theoretical foundation for molecular breeding practice. The research results will effectively promote the quality improvement and yield stability of Lindera aggregata, and have important practical value for promoting the sustainable development of the Chinese medicinal materials industry.

Lindera aggregata; Germplasm resources; Genetic diversity; Superior gene screening; Molecular breeding