Wen Fang, Xin Zi-Bing, Hong Xin, Cai Lei, Chen Xiao-Yun, Liang Jun-Jie, Wang Hui-Feng, Maciejewski Stephen, Wei Yi-Gang, Fu Long-Fei
Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, CN-541006 Guilin, China.
Gesneriad Committee of China Wild Plant Conservation Association, National Gesneriaceae Germplasm Bank of GXIB, Gesneriad Conservation Center of China (GCCC), Guilin Botanical Garden, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, CN-541006 Guilin, China.
PhytoKeys. 2022 Mar 22;193:89-106. doi: 10.3897/phytokeys.193.80715. eCollection 2022.
, a new genus from southern China, is described and colorfully illustrated with a single species, . This new genus is morphologically most similar to and , nevertheless, it can be easily distinguished from the latter two by the following characteristics, such as leaves in whorls of three, all closely clustered at the top; corolla bowl-shaped, 5-lobed, actinomorphic; capsule hard, oblong-ovoid, short, 3-4 mm long, densely appressed villous, wrapped by persistent densely pubescent calyx lobes, style persistent. The new genus and related genera were sequenced using the next-generation sequencing technique. The whole plastid genome of the new genus is 154, 315 - 154, 344 bp in length. We reconstructed phylogenetic trees using the dataset of 80 encoded protein genes of the whole plastid genome from 47 accessions based on ML and BI analyses. The result revealed that the new genus was recovering in a polytomy including , , and with strong support, congruent to the morphological evidence. A global conservation assessment was also performed and classifies as Least Concern (LC). In addition, after a review of recently described species of Gesneriaceae, we propose that plant enthusiasts, especially Gesneriad fans, have been playing an increasingly important role in the process of new taxa-discoveries.
本文描述了一个来自中国南方的新属,并对其唯一的物种进行了彩色绘图。这个新属在形态上与[其他两个属名未给出]最为相似,然而,它可以通过以下特征与后两者轻易区分开来,比如叶3片轮生,全部紧密簇生于顶部;花冠碗状,5浅裂,辐射对称;蒴果坚硬,长圆形卵形,短,长3 - 4毫米,密被贴伏柔毛,被宿存的密被短柔毛的萼裂片包裹,花柱宿存。使用下一代测序技术对新属及相关属进行了测序。新属的整个质体基因组长度为154,315 - 154,344碱基对。我们基于最大似然法(ML)和贝叶斯推断法(BI)分析,利用47个样本的整个质体基因组的80个编码蛋白质基因的数据集重建了系统发育树。结果表明,新属在一个多分支中得到恢复,包括[其他三个属名未给出],且得到了有力支持,这与形态学证据一致。还进行了全球保护评估,并将[物种名未给出]列为无危(LC)。此外,在对最近描述的苦苣苔科物种进行综述后,我们提出植物爱好者,尤其是苦苣苔科爱好者,在新分类群发现过程中发挥着越来越重要的作用。