De Giorgi Paola, Giacò Antonio, Astuti Giovanni, Minuto Luigi, Varaldo Lucia, De Luca Daniele, De Rosa Alessandro, Bacchetta Gianluigi, Sarigu Marco, Peruzzi Lorenzo
Department of Biology, University of Pisa, 56126 Pisa, Italy.
Botanic Garden and Museum, University of Pisa, 56126 Pisa, Italy.
Biology (Basel). 2022 Feb 23;11(3):356. doi: 10.3390/biology11030356.
is a plant genus of dwarf aromatic shrubs that includes about 26 species native to the western Mediterranean Basin. In Corsica and Sardinia, two of the main islands of the Mediterranean, (tetraploid) and (hexaploid) are reported. Along with the cultivated pentaploid , these species form a group of taxa that is hard to distinguish only by morphology. Molecular (using , , , , , , and ), cypsela morpho-colorimetric, morphometric, and niche similarity analyses were conducted to investigate the diversity of plants belonging to this species group. Our results confute the current taxonomic hypothesis and suggest considering and as a single species. Moreover, molecular and morphometric results highlight the strong affinity between and the populations endemic to Corsica and Sardinia. Finally, the populations from south-western Sardinia, due to their high differentiation in the studied plastid markers and the different climatic niche with respect to all the other populations, could be considered as an evolutionary significant unit.
是一个矮小芳香灌木的植物属，包括约26个原产于地中海盆地西部的物种。在地中海的两个主要岛屿科西嘉岛和撒丁岛，报道了（四倍体）和（六倍体）。与栽培的五倍体一起，这些物种形成了一组仅通过形态学难以区分的分类群。进行了分子（使用、、、、、、和）、瘦果形态比色法、形态测量和生态位相似性分析，以研究属于该物种组的植物的多样性。我们的结果驳斥了当前的分类假设，并建议将和视为一个单一物种。此外，分子和形态测量结果突出了与科西嘉岛和撒丁岛特有的种群之间的强烈亲和力。最后，撒丁岛西南部的种群，由于其在所研究的质体标记中的高度分化以及与所有其他种群不同的气候生态位，可以被视为一个具有进化意义的单元。
