Actinostephanus (Gesneriaceae), a new genus and species from Guangdong, South China

Actinostephanus, a new genus from southern China, is described and colorfully illustrated with a single species, A. enpingensis. This new genus is morphologically most similar to Boeica and Leptoboea, nevertheless, it can be easily distinguished from the latter two by the following characteristics,...

Full description

Bibliographic Details
Main Authors: Fang Wen, Zi-Bing Xin, Xin Hong, Lei Cai, Xiao-Yun Chen, Jun-Jie Liang, Hui-Feng Wang, Stephen Maciejewski, Yi-Gang Wei, Long-Fei Fu
Format: Article
Language:English
Published: Pensoft Publishers 2022-03-01
Series:PhytoKeys
Online Access:https://phytokeys.pensoft.net/article/80715/download/pdf/
_version_ 1818771848869969920
author Fang Wen
Zi-Bing Xin
Xin Hong
Lei Cai
Xiao-Yun Chen
Jun-Jie Liang
Hui-Feng Wang
Stephen Maciejewski
Yi-Gang Wei
Long-Fei Fu
author_facet Fang Wen
Zi-Bing Xin
Xin Hong
Lei Cai
Xiao-Yun Chen
Jun-Jie Liang
Hui-Feng Wang
Stephen Maciejewski
Yi-Gang Wei
Long-Fei Fu
author_sort Fang Wen
collection DOAJ
description Actinostephanus, a new genus from southern China, is described and colorfully illustrated with a single species, A. enpingensis. This new genus is morphologically most similar to Boeica and Leptoboea, 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 Boeica, Rhynchotechum, and Leptoboea with strong support, congruent to the morphological evidence. A global conservation assessment was also performed and classifies A. enpingensis 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.
first_indexed 2024-12-18T09:59:59Z
format Article
id doaj.art-35bc1f2b9bdf45ac82156472d576ba30
institution Directory Open Access Journal
issn 1314-2003
language English
last_indexed 2024-12-18T09:59:59Z
publishDate 2022-03-01
publisher Pensoft Publishers
record_format Article
series PhytoKeys
spelling doaj.art-35bc1f2b9bdf45ac82156472d576ba302022-12-21T21:11:41ZengPensoft PublishersPhytoKeys1314-20032022-03-011938910610.3897/phytokeys.193.8071580715Actinostephanus (Gesneriaceae), a new genus and species from Guangdong, South ChinaFang Wen0Zi-Bing Xin1Xin Hong2Lei Cai3Xiao-Yun Chen4Jun-Jie Liang5Hui-Feng Wang6Stephen Maciejewski7Yi-Gang Wei8Long-Fei Fu9Guilin Botanical Garden, Guangxi Zhuang Autonomous Region and Chinese Academy of SciencesGuangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of SciencesAnhui UniversityKunming Institute of Botany, Chinese Academy of SciencesManagement Office, Guangdong Enping Qixingkeng Provincial Nature ReserveManagement Office, Guangdong Enping Qixingkeng Provincial Nature ReserveGuangzhou Linfang Ecology Co., Ltd.The Gesneriad SocietyGuilin Botanical Garden, Guangxi Zhuang Autonomous Region and Chinese Academy of SciencesGuilin Botanical Garden, Guangxi Zhuang Autonomous Region and Chinese Academy of SciencesActinostephanus, a new genus from southern China, is described and colorfully illustrated with a single species, A. enpingensis. This new genus is morphologically most similar to Boeica and Leptoboea, 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 Boeica, Rhynchotechum, and Leptoboea with strong support, congruent to the morphological evidence. A global conservation assessment was also performed and classifies A. enpingensis 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.https://phytokeys.pensoft.net/article/80715/download/pdf/
spellingShingle Fang Wen
Zi-Bing Xin
Xin Hong
Lei Cai
Xiao-Yun Chen
Jun-Jie Liang
Hui-Feng Wang
Stephen Maciejewski
Yi-Gang Wei
Long-Fei Fu
Actinostephanus (Gesneriaceae), a new genus and species from Guangdong, South China
PhytoKeys
title Actinostephanus (Gesneriaceae), a new genus and species from Guangdong, South China
title_full Actinostephanus (Gesneriaceae), a new genus and species from Guangdong, South China
title_fullStr Actinostephanus (Gesneriaceae), a new genus and species from Guangdong, South China
title_full_unstemmed Actinostephanus (Gesneriaceae), a new genus and species from Guangdong, South China
title_short Actinostephanus (Gesneriaceae), a new genus and species from Guangdong, South China
title_sort actinostephanus gesneriaceae a new genus and species from guangdong south china
url https://phytokeys.pensoft.net/article/80715/download/pdf/
work_keys_str_mv AT fangwen actinostephanusgesneriaceaeanewgenusandspeciesfromguangdongsouthchina
AT zibingxin actinostephanusgesneriaceaeanewgenusandspeciesfromguangdongsouthchina
AT xinhong actinostephanusgesneriaceaeanewgenusandspeciesfromguangdongsouthchina
AT leicai actinostephanusgesneriaceaeanewgenusandspeciesfromguangdongsouthchina
AT xiaoyunchen actinostephanusgesneriaceaeanewgenusandspeciesfromguangdongsouthchina
AT junjieliang actinostephanusgesneriaceaeanewgenusandspeciesfromguangdongsouthchina
AT huifengwang actinostephanusgesneriaceaeanewgenusandspeciesfromguangdongsouthchina
AT stephenmaciejewski actinostephanusgesneriaceaeanewgenusandspeciesfromguangdongsouthchina
AT yigangwei actinostephanusgesneriaceaeanewgenusandspeciesfromguangdongsouthchina
AT longfeifu actinostephanusgesneriaceaeanewgenusandspeciesfromguangdongsouthchina