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Phylogeny of Impatiens (Balsaminaceae): integrating molecular and morphological evidence into a new classification
Yu, Sheng-Xiang; Janssens, Steven B.; Zhu, Xiang-Yun; Liden, Magnus2; Gao, Tian-Gang; Wang, Wei
Source PublicationCLADISTICS
AbstractImpatiens L.is one of the largest angiosperm genera, containing over 1000 species, and is notorious for its taxonomic difficulty. Here, we present, to our knowledge, the most comprehensive phylogenetic analysis of the genus to date based on a total evidence approach. Forty-six morphological characters, mainly obtained from our own investigations, are combined with sequence data from three genetic regions, including nuclear ribosomal ITS and plastid atpB-rbcL and trnL-F. We include 150 Impatiens species representing all clades recovered by previous phylogenetic analyses as well as three outgroups. Maximum-parsimony and Bayesian inference methods were used to infer phylogenetic relationships. Our analyses concur with previous studies, but in most cases provide stronger support. Impatiens splits into two major clades. For the first time, we report that species with three-colpate pollen and four carpels form a monophyletic group (clade I). Within clade II, seven well-supported subclades are recognized. Within this phylogenetic framework, character evolution is reconstructed, and diagnostic morphological characters for different clades and subclades are identified and discussed. Based on both morphological and molecular evidence, a new classification outline is presented, in which Impatiens is divided into two subgenera, subgen. Clavicarpa and subgen. Impatiens; the latter is further subdivided into seven sections.
Subject AreaEvolutionary Biology ; Zoology
Indexed BySCI
WOS Research AreaScience Citation Index Expanded (SCI-EXPANDED)
WOS IDWOS:000372006700004
Publication PlaceHOBOKEN
Funding OrganizationNational Natural Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31170177, 31110103911] ; Chinese Academy of SciencesChinese Academy of Sciences [KSCX2-EW-Z-1] ; Youth Innovation Promotion Association Foundation of CAS
Corresponding Author Emailwangwei1127@ibcas.ac.cn
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Document Type期刊论文
Affiliation1.Chinese Acad Sci, State Key Lab Systemat & Evolutionary Bot, Inst Bot, Beijing 100093, Peoples R China
2.Janssens, Steven B.] Bot Garden Meise, Nieuwelaan 38, BE-1860 Meise, Belgium
3.Uppsala Univ, Botaniska Tradgarden, Villavagen 8, S-75236 Uppsala, Sweden
Recommended Citation
GB/T 7714
Yu, Sheng-Xiang,Janssens, Steven B.,Zhu, Xiang-Yun,et al. Phylogeny of Impatiens (Balsaminaceae): integrating molecular and morphological evidence into a new classification[J]. CLADISTICS,2016,32(2):179-197.
APA Yu, Sheng-Xiang,Janssens, Steven B.,Zhu, Xiang-Yun,Liden, Magnus,Gao, Tian-Gang,&Wang, Wei.(2016).Phylogeny of Impatiens (Balsaminaceae): integrating molecular and morphological evidence into a new classification.CLADISTICS,32(2),179-197.
MLA Yu, Sheng-Xiang,et al."Phylogeny of Impatiens (Balsaminaceae): integrating molecular and morphological evidence into a new classification".CLADISTICS 32.2(2016):179-197.
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