Knowledge Management System Of Institute Of Botany,CAS
Inaccessible Biodiversity on Limestone Cliffs: Aster tianmenshanensis (Asteraceae), a New Critically Endangered Species from China | |
Zhang, Guo-Jin; Hu, Hai-Hua; Zhang, Cai-Fei; Tian, Xiao-Juan; Peng, Hui6; Gao, Tian-Gang | |
2015 | |
发表期刊 | PLOS ONE |
ISSN | 1932-6203 |
卷号 | 10期号:8 |
摘要 | Aster tianmenshanensis G. J. Zhang & T. G. Gao, a new species of Asteraceae from southern China is described and illustrated based on evidence from morphology, micromorphology and molecular phylogeny. The new species is superficially similar to Aster salwinensis Onno in having rosettes of spatulate leaves and a solitary, terminal capitulum, but it differs by its glabrous leaf margins, unequal disc floret lobes and 1-seriate pappus. The molecular phylogenetic analysis, based on nuclear sequences ITS, ETS and chloroplast sequence trnL-F, showed that the new species was nested within the genus Aster and formed a well supported clade with Aster verticillatus (Reinw.) Brouillet et al. The new species differs from the latter in having unbranched stems, much larger capitula, unequal disc floret lobes, beakless achenes and persistent pappus. In particular, A. tianmenshanensis has very short stigmatic lines, only ca. 0.18 mm long and less than 1/3 of the length of sterile style tip appendages, remarkably different from its congeners. This type of stigmatic line, as far as we know, has not been found in any other species of Aster. The very short stigmatic lines plus the unequal disc floret lobes imply that the new species may have a very specialized pollination system, which may be a consequence of habitat specialization. The new species grows only on the limestone cliffs of Mt. Tianmen, Hunan Province, at the elevation of 1400 m. It could only be accessed when a plank walkway was built across the cliffs for tourists. As it is known only from an area estimated at less than 10 km(2) and a walkway passes through this location, its habitat could be easily disturbed. This species should best be treated as Critically Endangered based on the International Union for Conservation of Nature Red List Categories and Criteria B2a. |
学科领域 | Multidisciplinary Sciences |
DOI | 10.1371/journal.pone.0134895 |
收录类别 | SCI |
语种 | 英语 |
WOS关键词 | EXTERNAL TRANSCRIBED SPACER ; PHYLOGENETIC UTILITY ; 18S-26S RDNA ; ETS ; AMPLIFICATION |
WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
WOS记录号 | WOS:000360069400040 |
出版者 | PUBLIC LIBRARY SCIENCE |
文献子类 | Article |
出版地 | SAN FRANCISCO |
资助机构 | National Natural Science Foundation of China [31270237, 31110103911] ; S T Basic Work [2013FY112100] ; External Cooperation Program of BIC ; Chinese Academy of Sciences [GJHZ 201321] |
作者邮箱 | Gaotg@ibcas.ac.cn |
作品OA属性 | Green Published, Green Submitted, gold |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/26007 |
专题 | 系统与进化植物学国家重点实验室 |
作者单位 | 1.[Zhang, Guo-Jin 2.Hu, Hai-Hua 3.Zhang, Cai-Fei 4.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 6.[Tian, Xiao-Juan 7.Tianmenshan Natl Forest Pk, Zhangjiajie 427300, Hunan, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Guo-Jin,Hu, Hai-Hua,Zhang, Cai-Fei,et al. Inaccessible Biodiversity on Limestone Cliffs: Aster tianmenshanensis (Asteraceae), a New Critically Endangered Species from China[J]. PLOS ONE,2015,10(8). |
APA | Zhang, Guo-Jin,Hu, Hai-Hua,Zhang, Cai-Fei,Tian, Xiao-Juan,Peng, Hui,&Gao, Tian-Gang.(2015).Inaccessible Biodiversity on Limestone Cliffs: Aster tianmenshanensis (Asteraceae), a New Critically Endangered Species from China.PLOS ONE,10(8). |
MLA | Zhang, Guo-Jin,et al."Inaccessible Biodiversity on Limestone Cliffs: Aster tianmenshanensis (Asteraceae), a New Critically Endangered Species from China".PLOS ONE 10.8(2015). |
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