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终于回家II:(孔特)扎尔迪尼(菊科,Mutisieae族)确实是一种…… (原文似乎不完整)

Home at Last II: (Kunth) Zardini (Mutisieae, Asteraceae) is really a .

作者信息

Xu Xiaodan, Zheng Wei, Funk Vicki A, Wen Jun

机构信息

Faculty of Art and Communication, Kunming University of Science and Technology, Kunming 650500 China.

Faculty of Architecture and City Planning, Kunming University of Science and Technology, Kunming 650500 China.

出版信息

PhytoKeys. 2018 Feb 9(95):93-106. doi: 10.3897/phytokeys.95.22916. eCollection 2018.

Abstract

(Kunth) Zardini of the -complex (Mutisieae, Asteraceae/Compositae) is distributed in Ecuador and Peru. This perennial herb was first named as Kunth and was later recognised as (Kunth) Ferreyra. Now it is generally treated as (Kunth) Zardini but it has never been included in any section of . In this study, the position of is assessed based on morphology and a molecular phylogeny that includes and 28 other species from the -complex. Morphologically, bears leaves with the adaxial epidermal surface without stomates but with soft thin trichomes, bracteate scapes, trimorphic capitula and inner ray florets with the corolla shorter than the style. These characters suggest that the species is most closely related to rather than to or . Furthermore, the phylogenetic results based on two nuclear (ITS and ETS) and two chloroplast (L-F and L-32) sequences strongly support the placement of nested within . As both morphological characters and the molecular phylogenetic results support the transfer of to , this enigmatic taxon is recognised as (Kunth) X.-D. Xu & W. Zheng.

摘要

菊科帚菊木族的扎氏帚菊(Kunth)分布于厄瓜多尔和秘鲁。这种多年生草本植物最初由孔特命名,后来被确认为费氏帚菊(Kunth)费雷拉。现在它通常被视为扎氏帚菊(Kunth)扎迪尼,但从未被归入帚菊属的任何一个组。在本研究中,基于形态学和分子系统发育对扎氏帚菊的位置进行了评估,该分子系统发育包括扎氏帚菊以及帚菊木族复合体中的其他28个物种。在形态上,扎氏帚菊的叶片近轴表皮表面无气孔,但有柔软的细毛,具苞片的花葶,三种形态的头状花序,以及内轮舌状花的花冠短于花柱。这些特征表明该物种与帚菊组关系最为密切,而不是与绒背组或杯苞组。此外,基于两个核基因(ITS和ETS)和两个叶绿体基因(L-F和L-32)序列的系统发育结果有力地支持了扎氏帚菊嵌套在帚菊组内的位置。由于形态特征和分子系统发育结果均支持将扎氏帚菊转移到帚菊组,这个神秘的分类群被确认为帚菊组扎氏帚菊(Kunth)徐霞云 & 郑维列。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7306/5904492/2494a2a803da/phytokeys-95-093-g001.jpg

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