茶树Camellia sinensis (L.)O.Kuntze是原产中国的多年生经济作物。在世界上从49°N到22°S,海拔从数米到2600米都有分布。我国茶树资源的遗传多样性举世瞩目,据报道,已有名录可查的各类初级资源就有3000多份,除了有适制各种茶类的优质资源外,尚有分布在全国200多处的国家二级保护树种野生大茶树,还有一些具有超常量机能性成分的珍稀资源,它们对开发利用和学术研究都具有重要价值。由于茶树 Camellia sinensis (L.) O.Kuntze is a perennial cash crop originating in China. In the world from 49 ° N to 22 ° S, the elevation varies from a few meters to 2,600 meters. The genetic diversity of tea tree resources in China has attracted worldwide attention. According to reports, more than 3,000 primary resources of all types have been listed. Apart from the high-quality resources suitable for various kinds of tea, there are still more than 200 Of the national secondary protected wild tea tree species, there are some rare resources with ultra-constitutive functional ingredients, which are of great value for the development and utilization and academic research. Because of tea tree