Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.12705/653.4 |
A widespread radiation in the Periplocoideae (Apocynaceae): The case of Cryptolepis | |
Joubert, Lize1; Klak, Cornelia2; Venter, Andor M.1; Venter, Hendrik J. T.1; Bruyns, Peter V.2 | |
通讯作者 | Bruyns, Peter V. |
来源期刊 | TAXON
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ISSN | 0040-0262 |
EISSN | 1996-8175 |
出版年 | 2016 |
卷号 | 65期号:3页码:487-501 |
英文摘要 | Cryptolepis is the second-largest genus in the Periplocoideae with 30 species. It is the most widely distributed genus in the subfamily and occupies a wide range of habitats, from moist forests to stony semi-deserts. Analyses of DNA-data revealed that Cryptolepis is paraphyletic and, for monophyly to prevail, Parquetina should be included in Cryptolepis. Most of the species fall into two major clades: one confined to NE Africa and neighbouring areas; the other absent from NE Africa but widely distributed from West to South Africa. Most species of Cryptolepis from the more arid areas are shrubby, often with reduced leaves and often with much reduced, few-flowered inflorescences. We establish that Cryptolepis arose about 21 million years ago and began its major radiation around 16 million years ago. Despite this age and its wide distribution, it has not diversified significantly, perhaps limited in the more arid regions by the absence of succulence. It is also possible that the relatively uniform floral structure also limited its response to the diversity of pollinators. Although most species of Cryptolepis are African, there are three species in SE Asia. We show that these three SE Asian species are nested among African taxa and are likely to have reached SE Asia by long-distance dispersal. |
英文关键词 | biogeography character-evolution diversity DNA-data molecular dating Old World phylogeny |
类型 | Article |
语种 | 英语 |
国家 | South Africa |
收录类别 | SCI-E |
WOS记录号 | WOS:000379280900004 |
WOS关键词 | PHYLOGENETIC-RELATIONSHIPS ; CHLOROPLAST DNA ; OLD-WORLD ; MOLECULAR PHYLOGENY ; NONCODING REGIONS ; UNIVERSAL PRIMERS ; EVOLUTION ; CLASSIFICATION ; AMPLIFICATION ; EUPHORBIA |
WOS类目 | Plant Sciences ; Evolutionary Biology |
WOS研究方向 | Plant Sciences ; Evolutionary Biology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/196628 |
作者单位 | 1.Univ Free State, Dept Plant Sci, POB 339, ZA-9300 Bloemfontein, South Africa; 2.Univ Cape Town, Dept Biol Sci, ZA-7701 Rondebosch, South Africa |
推荐引用方式 GB/T 7714 | Joubert, Lize,Klak, Cornelia,Venter, Andor M.,et al. A widespread radiation in the Periplocoideae (Apocynaceae): The case of Cryptolepis[J],2016,65(3):487-501. |
APA | Joubert, Lize,Klak, Cornelia,Venter, Andor M.,Venter, Hendrik J. T.,&Bruyns, Peter V..(2016).A widespread radiation in the Periplocoideae (Apocynaceae): The case of Cryptolepis.TAXON,65(3),487-501. |
MLA | Joubert, Lize,et al."A widespread radiation in the Periplocoideae (Apocynaceae): The case of Cryptolepis".TAXON 65.3(2016):487-501. |
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