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题名: Plastid phylogenomics and adaptive evolution of Gaultheria series Trichophyllae (Ericaceae), a Glade from sky islands of the Himalaya-Hengduan Mountains
作者: Zhang, Ming-Ying1, 2; Fritsch, Peter W.3; Ma, Peng-Fei1, 2; Wang, Hong1, 2; Lu, Lu1, 2; Li, De -Zhu1, 2
刊名: MOLECULAR PHYLOGENETICS AND EVOLUTION
出版日期: 2017-05-01
卷号: 110, 页码:7-18
关键词: Plastid genome ; Character evolution ; Gaultheria ; Phylogenetic relationships
DOI: 10.1016/j.ympev.2017.01.015
文章类型: Article
英文摘要: Gaultheria series Trichophyllae Airy Shaw is an angiosperm Glade of high-alpine shrublets endemic to the Himalaya-Hengduan Mountains and characterized by recent species divergence and convergent character evolution that has until recently caused much confusion in species circumscription. Although multiple DNA sequence regions have been employed previously, phylogenetic relationships among species in the group have remained largely unresolved. Here we examined the effectiveness of the plastid genome for improving phylogenetic resolution within the G. series Trichophyllae Glade. Plastid genomes of 31 samples representing all 19 recognized species of the series and three outgroup species were sequenced with Illumina Sequencing technology. Maximum likelihood (ML), maximum parsimony (MP) and Bayesian inference (BI) phylogenetic analyses were performed with various datasets, i.e., that from the whole plastid genome, coding regions, noncoding regions, large single-copy region (LSC) and inverted-repeat region a (IRa). The partitioned whole plastid genome with inverted-repeat region b (IRb) excluded was also analyzed with ML and BI. Tree topologies based on the whole plastid genome, noncoding regions, and LSC region datasets across all analyses, and that based on the partitioned dataset with ML and BI analyses, are identical and generally strongly supported. Gaultheria series Trichophyllae form a Glade with three species and one variety that is sister to a Glade of the remaining 16 species; the latter comprises seven main subclades. Interspecific relationships within the series are strongly supported except for those based on the coding-region and IRa-region datasets. Eight divergence hotspot regions, each possessing >5% percent variable sites, were screened across the whole plastid genome of the 28 individuals sampled in the series. Results of morphological character evolution reconstruction diagnose several clades, and a hypothesis of adaptive evolution for plant habit is postulated. (C) 2017 Elsevier Inc. All rights reserved.
类目[WOS]: Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
研究领域[WOS]: Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
关键词[WOS]: CHLOROPLAST GENOME SEQUENCES ; CHARACTER EVOLUTION ; PHYLOGENETIC ANALYSES ; DNA ; CLASSIFICATION ; ANGIOSPERMS ; MODELS ; RATES ; IDENTIFICATION ; TORTOISE
收录类别: SCI
项目资助者: National Natural Science Foundation of China(41671052 ; National Geographic Society of United States(4-03-9329) ; National Key Basic Research Program of China(2014CB954100) ; Key Programs of the Chinese Academy of Sciences(KSZD-EW-Z-011-01) ; U.S. National Science Foundation(DEB-0717711) ; 31270272 ; 31100163)
语种: 英语
WOS记录号: WOS:000398877500002
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/51064
Appears in Collections:中国科学院东亚植物多样性与生物地理学重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China
2.Chinese Acad Sci, Plant Germplasm & Genom Ctr, Kunming Inst Bot, Germplasm Bank Wild Species, Kunming 650201, Yunnan, Peoples R China
3.Bot Res Inst Texas, 1700 Univ Dr, Ft Worth, TX 76017 USA
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