Study of the genetic and phenotypic variation among wild and cultivated clary sages provides interesting avenues for breeding programs of a perfume, medicinal and aromatic plant

A road-map of the genetic and phenotypic diversities in both crops and their wild-related species can help identifying valuable genetic resources for further crop breeding. The clary sage (Salvia sclarea L.), a perfume, medicinal and aromatic plant, is used for sclareol production and ornamental purposes. Despite its wide use in the field of cosmetics, the phenotypic and genetic diversity of wild and cultivated clary sage remains to be explored. We characterized the genetic and phenotypic variation of a collection of six wild S. sclarea populations from Croatia, sampled along an altitudinal gradient, and of populations of three S. sclarea cultivars. We showed low level of genetic diversity for the two S. sclarea traditional cultivars used for essential oil production and for ornamental purposes, respectively. In contrast, a recent cultivar resulting from new breeding methods, which involve hybridizations among several genotypes rather than traditional recurrent selection and self-crosse...阐明作物及其野生近缘种的遗传与表型多样性图谱，有助于发掘可用于作物育种的珍贵遗传资源。快乐鼠尾草（clary sage, Salvia sclarea L.）是一种兼具香料、药用与芳香价值的植物，可用于香紫苏醇生产及观赏用途。尽管其在化妆品领域应用广泛，但野生与栽培快乐鼠尾草的表型及遗传多样性仍有待探索。本研究对沿海拔梯度采样的克罗地亚6个野生快乐鼠尾草种群种质集合，以及3个快乐鼠尾草栽培品种的种群开展了遗传与表型变异表征分析。结果表明，分别用于精油生产与观赏用途的两个传统快乐鼠尾草栽培品种，其遗传多样性水平较低；与之形成鲜明对比的是，一种通过新型育种方法培育的新品种——该方法采用多基因型间杂交而非传统的轮回选择与自交……