Phylogenetic relationships in the Pterygiella complex (Orobanchaceae) inferred from molecular and morphological evidence
Dong, Li-Na1,4,5; Wang, Hong1,2; Wortley, Alexandra H.3; Lu, Lu1,2; Li, De-Zhu1,2
Corresponding AuthorWang, H (reprint author), Chinese Acad Sci, Key Lab Biodivers & Biogeog, Kunming Inst Bot, Kunming 650204, Yunnan, Peoples R China. ; wanghong@mail.kib.ac.cn ; dzl@mail.kib.ac.cn
2013-03-01
Source PublicationBOTANICAL JOURNAL OF THE LINNEAN SOCIETY
ISSN0024-4074
Volume171Issue:3Pages:491-507
AbstractThe Pterygiella complex, i.e. Pterygiella, Phtheirospermum, Pseudobartsia and Xizangia, is controversial in terms of both its relationships and taxonomic status. The genera of the complex are all species-poor and endemic to eastern Asia. In this study, we sampled all taxa in the complex for seven genic regions [atpB-rbcL, atpH-I, psbA-trnH, rpl16 intron, trnL-F, trnS-G and internal transcribed spacer (ITS)], which were analysed separately and in combination. We examined capsule and seed morphology of these genera using scanning electron microscopy (SEM). Our results indicate that the complex is polyphyletic and comprises two clades. The first, designated Pterygiella complex I', includes only Phtheirospermum japonicum. This clade is uniquely diagnosed by its papery yellow capsule and reticulate secondary thickening on the seed coat. The second clade, Pterygiella complex II', includes Phtheirospermum tenuisectum, P.parishii, P.muliense, Pseudobartsia, Xizangia and Pterygiella. These taxa share a coriaceous capsule. Pterygiella is monophyletic and is characterized by eglandular, unicellular, pilose hairs on the capsule and hook-like protuberances on the horizontal ridges of the striate or reticulate seed coat. Excluding P.japonicum, the remaining taxa of Phtheirospermum cluster together and are sister to Pterygiella. Xizangia bartschioides and Pseudobartsia yunnanensis are separated from Pterygiella and Phtheirospermum, respectively, and are supported as genera by molecular and morphological evidence.(c) 2013 The Linnean Society of London
KeywordEastern Asia Fruit Genic Regions Hemiparasite Phylogenetic Analysis Phtheirospermum Pseudobartsia Xizangia
Subject AreaPlant Sciences
Indexed BySCI
Language英语
WOS IDWOS:000315485100004
Citation statistics
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/16499
Collection中国科学院东亚植物多样性与生物地理学重点实验室
Affiliation1.Chinese Acad Sci, Key Lab Biodivers & Biogeog, Kunming Inst Bot, Kunming 650204, Yunnan, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, Plant Germplasm & Genom Ctr, Germplasm Bank Wild Species, Kunming 650204, Yunnan, Peoples R China
3.Royal Bot Garden Edinburgh, Edinburgh EH3 5LR, Midlothian, Scotland
4.Guangxi Zhuang Autonomous Reg, Guangxi Inst Bot, Guilin 541006, Guangxi, Peoples R China
5.Chinese Acad Sci, Guilin 541006, Guangxi, Peoples R China
Recommended Citation
GB/T 7714
Dong, Li-Na,Wang, Hong,Wortley, Alexandra H.,et al. Phylogenetic relationships in the Pterygiella complex (Orobanchaceae) inferred from molecular and morphological evidence[J]. BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,2013,171(3):491-507.
APA Dong, Li-Na,Wang, Hong,Wortley, Alexandra H.,Lu, Lu,&Li, De-Zhu.(2013).Phylogenetic relationships in the Pterygiella complex (Orobanchaceae) inferred from molecular and morphological evidence.BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,171(3),491-507.
MLA Dong, Li-Na,et al."Phylogenetic relationships in the Pterygiella complex (Orobanchaceae) inferred from molecular and morphological evidence".BOTANICAL JOURNAL OF THE LINNEAN SOCIETY 171.3(2013):491-507.
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