Ergashov Ibrokhimjon, Yusupov Ziyoviddin, Dolatyari Alireza, Khorasani Mina, Eker İsmail, Turdumatova Nazgul, Lazkov Georgy, Rasulov Farruhbek, Sun Hang, Deng Tao, Tojibaev Komiljon
State Key Laboratory of Plant Diversity and Specialty Crops, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China.
Yunnan International Joint Laboratory for Biodiversity of Central Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China.
Plant Divers. 2025 May 16;47(4):561-575. doi: 10.1016/j.pld.2025.04.009. eCollection 2025 Jul.
Subgenus is the second largest subgenus of , with a wide distribution ranging from the Canary Islands to northwestern India. This study investigates the phylogeny, biogeographic patterns, and morphological character evolution of the subgenus using 117 accessions representing 107 taxa across the 19 currently recognized sections within subgenus . Although the subgenus is monophyletic, significant incongruence exists between morphological and molecular data. Our plastome-based phylogenetic analysis identified five distinct lineages (A-E), corresponding to the geographic distributions of the species. However, plastome lineages (A-E) and ITS clusters (A-G) were incongruent. Biogeographic and molecular dating analyses suggest that evolved in association with tectonic uplift events in Central Asia during the Late Miocene or Oligocene. Our finding that plastomes have lost and one copy gene indicate that the subgenus has undergone a relatively recent diversification. We also found that narrow leaves and fasciculate to semi-globose inflorescences may represent ancestral traits within the subgenus. This study provides new insights into the biogeographic history and trait evolution of , suggesting recent diversification influenced by tectonic events and climate change, while highlighting the complexity of molecular and morphological data integration.
亚属是[属名]的第二大亚属，分布广泛，从加那利群岛到印度西北部。本研究利用代表亚属内19个目前公认组中107个分类群的117份材料，调查了该亚属的系统发育、生物地理模式和形态特征演化。尽管该亚属是单系的，但形态学和分子数据之间存在显著不一致。我们基于质体基因组的系统发育分析确定了五个不同的谱系（A - E），与物种的地理分布相对应。然而，质体基因组谱系（A - E）和ITS聚类（A - G）不一致。生物地理和分子年代分析表明，[属名]在晚中新世或渐新世与中亚的构造隆升事件相关联而演化。我们发现[属名]质体基因组已经丢失了[基因名]和一个拷贝的[基因名]基因，这表明该亚属经历了相对较新的多样化。我们还发现窄叶和簇生至半球形的花序可能代表该亚属内的祖先性状。本研究为[属名]的生物地理历史和性状演化提供了新的见解，表明近期的多样化受到构造事件和气候变化的影响，同时突出了分子和形态数据整合的复杂性。
