Base de dados : MEDLINE
Pesquisa : B01.650.940.800.575.912.250.583.670.690 [Categoria DeCS]
Referências encontradas : 54 [refinar]
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[PMID]:27908741
[Au] Autor:Wang HJ; Li WT; Liu YN; Yang FS; Wang XQ
[Ad] Endereço:State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China.
[Ti] Título:Resolving interspecific relationships within evolutionarily young lineages using RNA-seq data: An example from Pedicularis section Cyathophora (Orobanchaceae).
[So] Source:Mol Phylogenet Evol;107:345-355, 2017 Feb.
[Is] ISSN:1095-9513
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Phylogenomics has shown great potential in resolving evolutionary relationships at different taxonomical levels. However, it remains controversial whether all orthologous genes under different selective pressures can be concatenated for phylogenomic reconstruction. Here we used sect. Cyathophora of Pedicularis, one of the most species-rich genera of angiosperms in the alpine and arctic regions of the Northern Hemisphere, as a model to investigate the efficiency of RNA-seq in resolving relationships of closely related congeneric species. Flower transcriptomes were sequenced for all species of sect. Cyathophora and two outgroup species. Forty-one highly conserved single-/low-copy nuclear genes and 1553 orthologous groups (OGs) were identified and concatenated into five datasets based on gene copy numbers and Ka/Ks values to reconstruct the phylogeny of section Cyathophora. We also tested how many genes minimally can resolve the interspecific relationships, and reconstructed the evolutionary history of some floral characters in sect. Cyathophora. The results showed that the five different datasets consistently resolved the interspecific relationships of sect. Cyathophora, and the interspecific relationships can be robustly reconstructed with maximal support when ⩾20 single-/low-copy nuclear genes or 25 OGs are used. Our study suggests that all OGs under different selective pressures can be concatenated for phylogenomic reconstruction, and provides a successful and efficient use of RNA-seq in reconstructing interspecific relationships of a non-model plant group with recent radiations.
[Mh] Termos MeSH primário: Pedicularis/classificação
Pedicularis/genética
Filogenia
Análise de Sequência de RNA/métodos
[Mh] Termos MeSH secundário: Regiões Árticas
Sequência de Bases
Núcleo Celular/genética
Bases de Dados Genéticas
Flores/genética
Dosagem de Genes
Regulação da Expressão Gênica de Plantas
Genes de Plantas
Variação Genética
Genômica
Funções Verossimilhança
RNA de Plantas/genética
Especificidade da Espécie
Fatores de Tempo
Transcriptoma/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (RNA, Plant)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170925
[Lr] Data última revisão:
170925
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161203
[St] Status:MEDLINE


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[PMID]:27806090
[Au] Autor:Li WJ; Sui XL; Kuss P; Liu YY; Li AR; Guan KY
[Ad] Endereço:Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China.
[Ti] Título:Long-Distance Dispersal after the Last Glacial Maximum (LGM) Led to the Disjunctive Distribution of Pedicularis kansuensis (Orobanchaceae) between the Qinghai-Tibetan Plateau and Tianshan Region.
[So] Source:PLoS One;11(11):e0165700, 2016.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Quaternary climate fluctuations have profoundly affected the current distribution patterns and genetic structures of many plant and animal species in the Qinghai-Tibetan Plateau (QTP) and adjacent mountain ranges, e.g. Tianshan (TSR), Altay, etc. In this greater area disjunct distributions are prominent but have nevertheless received little attention with respect to the historical processes involved. Here, we focus on Pedicularis kansuensis to test whether the current QTP and TSR disjunction is the result of a recent Holocene range expansion involving dispersal across arid land bridge(s) or a Pleistocene range fragmentation involving persistence in refugia. Two chloroplast DNA spacers were sequenced for 319 individuals from 34 populations covering the entire distribution range of this species in China. We found a total of 17 haplotypes of which all occurred in the QTP, and only five in the TSR. Overall genetic diversity was high (HT = 0.882, HS = 0.559) and higher in the QTP than in the TSR. Genetic differentiation among regions and populations was relatively low (GST = 0.366) and little evidence for a phylogeographic pattern emerged. The divergence times for the four main lineages could be dated to the early Pleistocene. Surprisingly, the two ubiquitous haplotypes diverged just before or around the Last Glacial Maximum (LGM) and were found in different phylogenetic lineages. The Species Distribution Model suggested a disappearance of P. kansuensis from the TSR during the LGM in contrast to a relatively constant potential distribution in the QTP. We conclude that P. kansuensis colonized the TSR after the LGM. The improbable long-distance dispersal by wind or water across arid land seed flow may well have had birds or men as vector.
[Mh] Termos MeSH primário: DNA de Cloroplastos/genética
Pedicularis/genética
Análise de Sequência de DNA/métodos
[Mh] Termos MeSH secundário: China
Clima
Demografia
Evolução Molecular
Variação Genética
Genética Populacional
Filogenia
Filogeografia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Chloroplast)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170626
[Lr] Data última revisão:
170626
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161103
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0165700


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[PMID]:27325896
[Au] Autor:Sun SG; Armbruster WS; Huang SQ
[Ad] Endereço:School of Life Sciences, Central China Normal University, Wuhan 430079, China.
[Ti] Título:Geographic consistency and variation in conflicting selection generated by pollinators and seed predators.
[So] Source:Ann Bot;118(2):227-37, 2016 Aug.
[Is] ISSN:1095-8290
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUNDS AND AIMS: Floral traits that attract pollinators may also attract seed predators, which, in turn, may generate conflicting natural selection on such traits. Although such selection trade-offs are expected to vary geographically, few studies have investigated selection mediated by pollinators and seed predators across a geographic mosaic of environments and floral variation. METHODS: Floral traits were investigated in 14 populations of the bumble-bee-pollinated herb, Pedicularis rex, in which tubular flowers are subtended by cupular bracts holding rain water. To study potentially conflicting selection on floral traits generated by pollinators and florivores, stigmatic pollen loads, initial seed set, pre-dispersal seed predation and final viable seed production were measured in 12-14 populations in the field. KEY RESULTS: Generalized Linear Model (GLM) analyses indicated that the pollen load on stigmas was positively related to the exsertion of the corolla beyond the cupular bracts and size of the lower corolla lip, but so too was the rate of seed predation, creating conflicting selection on both floral traits. A geographic mosaic of selection mediated by seed predators, but not pollinators, was indicated by significant variation in levels of seed predation and the inclusion of two-, three- and four-way interaction terms between population and seed predation in the best model [lowest corrected Akaike Information Criterion (AICc)] explaining final seed production. CONCLUSIONS: These results indicate opposing selection in operation: pollinators generated selection for greater floral exsertion beyond the bracts, but seed predators generated selection for reduced exsertion above the protective pools of water, although the strength of the latter varied across populations.
[Mh] Termos MeSH primário: Abelhas/fisiologia
Flores/anatomia & histologia
Pedicularis/anatomia & histologia
Polinização
Seleção Genética
[Mh] Termos MeSH secundário: Animais
Meio Ambiente
Flores/genética
Flores/fisiologia
Geografia
Modelos Lineares
Pedicularis/genética
Pedicularis/fisiologia
Fenótipo
Pólen/anatomia & histologia
Pólen/genética
Pólen/fisiologia
Sementes/anatomia & histologia
Sementes/genética
Sementes/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170801
[Lr] Data última revisão:
170801
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160622
[St] Status:MEDLINE
[do] DOI:10.1093/aob/mcw097


  4 / 54 MEDLINE  
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[PMID]:26990321
[Au] Autor:Wang XP; Yu WB; Sun SG; Huang SQ
[Ad] Endereço:College of Life Sciences, Wuhan University, Wuhan 430072, China.
[Ti] Título:Pollen size strongly correlates with stigma depth among Pedicularis species.
[So] Source:J Integr Plant Biol;58(10):818-821, 2016 Oct.
[Is] ISSN:1744-7909
[Cp] País de publicação:China (Republic : 1949- )
[La] Idioma:eng
[Ab] Resumo:Darwin proposed that pollen size should be positively correlated with stigma depth rather than style length among species given that pollen tubes first enter the stigma autotrophically, then grow through the style heterotrophically. However, studies often show a positive relationship between pollen size and style length. Five floral traits were observed to be correlated among 42 bumblebee-pollinated Pedicularis species (Orobanchaceae) in which stigmas are distinct from styles. The phylogenetic independent contrast analysis revealed that pollen grain volume was more strongly correlated with stigma depth than with style length, consistent with Darwin's functional hypothesis between pollen size and stigma depth.
[Mh] Termos MeSH primário: Pedicularis/crescimento & desenvolvimento
[Mh] Termos MeSH secundário: Flores/crescimento & desenvolvimento
Pedicularis/classificação
Filogenia
Pólen/anatomia & histologia
Pólen/crescimento & desenvolvimento
Tubo Polínico/crescimento & desenvolvimento
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170510
[Lr] Data última revisão:
170510
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160319
[St] Status:MEDLINE
[do] DOI:10.1111/jipb.12477


  5 / 54 MEDLINE  
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[PMID]:26828611
[Au] Autor:Venditti A; Frezza C; Sciubba F; Foddai S; Serafini M; Nicoletti M; Bianco A
[Ad] Endereço:a Dipartimento di Chimica , Sapienza Università di Roma , Roma , Italy.
[Ti] Título:Secoiridoids and other chemotaxonomically relevant compounds in Pedicularis: phytochemical analysis and comparison of Pedicularis rostratocapitata Crantz and Pedicularis verticillata L. from Dolomites.
[So] Source:Nat Prod Res;30(15):1698-705, 2016 Aug.
[Is] ISSN:1478-6427
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:We compared the respective metabolite patterns of two Pedicularis species from Dolomites. Seven phenylethanoid glycosides, i.e., verbascoside (1), echinacoside (2), angoroside A (3), cistantubuloside B1 (4), wiedemannioside C (5), campneoside II (11) and cistantubuloside C1 (12), together with several iridoid glucosides as aucubin (6), euphroside (7), monomelittoside (8), mussaenosidic acid (9) and 8-epiloganic acid (13) were identified. Pedicularis verticillata showed also the presence of greatly unexpected secoiridoids, ligustroside (14) and excelside B (15), very rare compounds in Lamiales. Both PhGs and iridoids are considered of taxonomical relevance in the Asteridae and their occurrence in Pedicularis was discussed. In particular, the exclusive presence of several compounds such as 8-epiloganic acid (13), campneoside II (11), cistantubuloside C1 (12), ligustroside (14) and excelside B (15) in Pedicularis rostratocapitata, and angoroside A (3), cistantubuloside B1 (4) and wiedemannioside C (5) in P. verticillata could be considered specific markers for the two botanical entities.
[Mh] Termos MeSH primário: Glicosídeos/isolamento & purificação
Iridoides/isolamento & purificação
Pedicularis/química
Compostos Fitoquímicos/análise
[Mh] Termos MeSH secundário: Glicosídeos/química
Iridoides/química
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Glycosides); 0 (Iridoids); 0 (Phytochemicals)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:170817
[Lr] Data última revisão:
170817
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160202
[St] Status:MEDLINE
[do] DOI:10.1080/14786419.2015.1136307


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[PMID]:26825251
[Au] Autor:Zhou B; Li M; Cao X; Zhang Q; Liu Y; Ma Q; Qiu Y; Luan F; Wang X
[Ad] Endereço:Department of Pharmacy, Lanzhou General Hospital of PLA, Key Laboratory of the Prevention and Treatment for Injury in Plateau of PLA, Lanzhou 730050, China; Department of Pharmacy, Lanzhou University, Lanzhou 730000, China.
[Ti] Título:Phenylethanoid glycosides of Pedicularis muscicola Maxim ameliorate high altitude-induced memory impairment.
[So] Source:Physiol Behav;157:39-46, 2016 Apr 01.
[Is] ISSN:1873-507X
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Exposure to hypobaric hypoxia causes oxidative stress, neuronal degeneration and apoptosis that leads to memory impairment. Though oxidative stress contributes to neuronal degeneration and apoptosis in hypobaric hypoxia, the ability for phenylethanoid glycosides of Pedicularis muscicola Maxim (PhGs) to reverse high altitude memory impairment has not been studied. Rats were supplemented with PhGs orally for a week. After the fourth day of drug administration, rats were exposed to a 7500 m altitude simulation in a specially designed animal decompression chamber for 3 days. Spatial memory was assessed by the 8-arm radial maze test before and after exposure to hypobaric hypoxia. Histological assessment of neuronal degeneration was performed by hematoxylin-eosin (HE) staining. Changes in oxidative stress markers and changes in the expression of the apoptotic marker, caspase-3, were assessed in the hippocampus. Our results demonstrated that after exposure to hypobaric hypoxia, PhGs ameliorated high altitude memory impairment, as shown by the decreased values obtained for reference memory error (RME), working memory error (WME), and total error (TE). Meanwhile, administration of PhGs decreased hippocampal reactive oxygen species levels and consequent lipid peroxidation by elevating reduced glutathione levels and enhancing the free radical scavenging enzyme system. There was also a decrease in the number of pyknotic neurons and a reduction in caspase-3 expression in the hippocampus. These findings suggest that PhGs may be used therapeutically to ameliorate high altitude memory impairment.
[Mh] Termos MeSH primário: Doença da Altitude/complicações
Antioxidantes/uso terapêutico
Glicosídeos/uso terapêutico
Transtornos da Memória/etiologia
Pedicularis/química
[Mh] Termos MeSH secundário: Aldeídos/metabolismo
Animais
Antioxidantes/química
Caspase 3/metabolismo
Modelos Animais de Doenças
Relação Dose-Resposta a Droga
Glutationa/metabolismo
Glicosídeos/química
Hipocampo/patologia
Hipóxia/complicações
Masculino
Aprendizagem em Labirinto/efeitos dos fármacos
Transtornos da Memória/patologia
Ratos
Ratos Wistar
Espécies Reativas de Oxigênio/metabolismo
Memória Espacial/efeitos dos fármacos
Superóxido Dismutase/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Aldehydes); 0 (Antioxidants); 0 (Glycosides); 0 (Reactive Oxygen Species); 2363-83-9 (malealdehyde); EC 1.15.1.1 (Superoxide Dismutase); EC 3.4.22.- (Caspase 3); GAN16C9B8O (Glutathione)
[Em] Mês de entrada:1612
[Cu] Atualização por classe:161230
[Lr] Data última revisão:
161230
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160131
[St] Status:MEDLINE


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[PMID]:26714618
[Au] Autor:Huang SQ; Wang XP; Sun SG
[Ad] Endereço:School of Life Sciences, Central China Normal University, Wuhan 430079, China.
[Ti] Título:Are long corolla tubes in Pedicularis driven by pollinator selection?
[So] Source:J Integr Plant Biol;58(8):698-700, 2016 Aug.
[Is] ISSN:1744-7909
[Cp] País de publicação:China (Republic : 1949- )
[La] Idioma:eng
[Ab] Resumo:The evolution of long corolla tubes has been hypothesized to be driven by long-tongued pollinators. Corolla tubes in Pedicularis species can be longer than 10 cm which may function as flower stalks to increase visual attractiveness to pollinators because these species provide no nectar and are pollinated by bumblebees. The corolla tube length was manipulated (shorter or longer) in two Pedicularis species in field to examine whether longer tubes are more attractive to pollinators and produce more seeds than short tubes. Our results did not support the pollinator attraction hypothesis, leaving the evolution of long tubes in Pedicularis remains mysterious.
[Mh] Termos MeSH primário: Abelhas/fisiologia
Flores/anatomia & histologia
Flores/fisiologia
Pedicularis/anatomia & histologia
Pedicularis/fisiologia
Polinização/fisiologia
[Mh] Termos MeSH secundário: Animais
Sementes/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1704
[Cu] Atualização por classe:170410
[Lr] Data última revisão:
170410
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:151231
[St] Status:MEDLINE
[do] DOI:10.1111/jipb.12460


  8 / 54 MEDLINE  
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[PMID]:26207992
[Au] Autor:Venditti A; Frezza C; Serafini M; Bianco A
[Ad] Endereço:a Dipartimento di Chimica , Sapienza Università di Roma , P.le A. Moro 5, 00185 Roma , Italy.
[Ti] Título:Iridoids and phenylethanoid from Pedicularis kerneri Dalla Torre growing in Dolomites, Italy.
[So] Source:Nat Prod Res;30(3):327-31, 2016.
[Is] ISSN:1478-6427
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:In this study, we report the first phytochemical analysis of polar fraction of Pedicularis kerneri Dalla Torre growing in Dolomites, Italy. Several iridoid glucosides were isolated, namely aucubin (1), monomelittoside (2), plantarenaloside (3), euphroside (4), mussaenosidic acid (5) and 8-epiloganic acid (6), showing a composition in accordance with previous study on this genus. The studied samples, collected from Dolomites, presented a chemotype already recognised in species from North America, characterised by euphroside (4) and aucubin (1) as main components, but the main character was the presence of monomelittoside (2) never reported in this genus. The identification of verbascoside (7), leucosceptoside A (9) and echinacoside (10) complete the systematic framing of this species since is ascertained the co-occurrence of phenylethanoid glycosides with iridoids in Lamiales species.
[Mh] Termos MeSH primário: Glucosídeos Iridoides/química
Glucosídeos Iridoides/isolamento & purificação
Pedicularis/química
[Mh] Termos MeSH secundário: Glucosídeos/isolamento & purificação
Glicosídeos/isolamento & purificação
Iridoides/isolamento & purificação
Itália
Estrutura Molecular
Fenóis/isolamento & purificação
Extratos Vegetais/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Glucosides); 0 (Glycosides); 0 (Iridoid Glucosides); 0 (Iridoids); 0 (Phenols); 0 (Plant Extracts); 0 (monomelittoside); 22255-40-9 (loganic acid); 2G52GS8UML (aucubin); 3TGX09BD5B (acteoside); I04O1DT48T (echinacoside)
[Em] Mês de entrada:1608
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150725
[St] Status:MEDLINE
[do] DOI:10.1080/14786419.2015.1060230


  9 / 54 MEDLINE  
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[PMID]:26172034
[Au] Autor:Liu YN; Li Y; Yang FS; Wang XQ
[Ad] Endereço:State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China.
[Ti] Título:Floral nectary, nectar production dynamics, and floral reproductive isolation among closely related species of Pedicularis.
[So] Source:J Integr Plant Biol;58(2):178-87, 2016 Feb.
[Is] ISSN:1744-7909
[Cp] País de publicação:China (Republic : 1949- )
[La] Idioma:eng
[Ab] Resumo:Floral nectar is thought to be one of the most important rewards that attract pollinators in Pedicularis; however, few studies have examined variation of nectary structure and/or nectar secretion in the genus, particularly among closely related species. Here we investigated nectary morphology, nectar quality, and nectar production dynamics in flowers of Pedicularis section Cyathophora. We found a conical floral nectary at the base of the ovary in species of the rex-thamnophila clade. Stomata were found on the surface of the nectary, and copious starch grains were detected in the nectary tissues. In contrast, a semi-annular nectary was found in flowers of the species of the superba clade. Only a few starch grains were observed in tissues of the semi-annular nectary, and the nectar sugar concentration in these flowers was much lower than that in the flowers of the rex-thamnophila clade. Our results indicate that the floral nectary has experienced considerable morphological, structural, and functional differentiation among closely related species of Pedicularis. This could have affected nectar production, leading to a shift of the pollination mode. Our results also imply that variation of the nectary morphology and nectar production may have played an important role in the speciation of sect. Cyathophora.
[Mh] Termos MeSH primário: Flores/fisiologia
Pedicularis/fisiologia
Néctar de Plantas/biossíntese
[Mh] Termos MeSH secundário: Animais
Abelhas/fisiologia
Carboidratos/análise
Flores/anatomia & histologia
Flores/crescimento & desenvolvimento
Flores/ultraestrutura
Pedicularis/anatomia & histologia
Pedicularis/crescimento & desenvolvimento
Pedicularis/ultraestrutura
Polinização
Isolamento Reprodutivo
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Carbohydrates); 0 (Plant Nectar)
[Em] Mês de entrada:1610
[Cu] Atualização por classe:161230
[Lr] Data última revisão:
161230
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150715
[St] Status:MEDLINE
[do] DOI:10.1111/jipb.12374


  10 / 54 MEDLINE  
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[PMID]:26159907
[Au] Autor:Yu WB; Liu ML; Wang H; Mill RR; Ree RH; Yang JB; Li DZ
[Ad] Endereço:Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China. yuwenbin@xtbg.ac.cn.
[Ti] Título:Towards a comprehensive phylogeny of the large temperate genus Pedicularis (Orobanchaceae), with an emphasis on species from the Himalaya-Hengduan Mountains.
[So] Source:BMC Plant Biol;15:176, 2015 Jul 11.
[Is] ISSN:1471-2229
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Striking interspecific variations in floral traits of the large temperate genus Pedicularis have given rise to controversies concerning infra-generic classifications. To date, phylogenetic relationships within the genus have not been well resolved. The main goal of this study is to construct a backbone phylogeny of Pedicularis, with extensive sampling of species from the Himalaya-Hengduan Mountains. Phylogenetic analyses included 257 species, representing all 13 informal groups and 104 out of 130 series in the classification system of Tsoong, using sequences of the nuclear ribosomal internal transcribed spacer (nrITS) and three plastid regions (matK, rbcL and trnL-F). Bayesian inference and maximum likelihood methods were applied in separate and combined analyses of these datasets. RESULTS: Thirteen major clades are resolved with strong support, although the backbone of the tree is poorly resolved. There is little consensus between the phylogenetic tree and Tsoong's classification of Pedicularis. Only two of the 13 groups (15.4 %), and 19 of the 56 series (33.9 %) with more than one sampled species were found to be strictly monophyletic. Most opposite-/whorled-leaved species fall into a single clade, i.e. clade 1, while alternate leaves species occur in the remaining 12 clades. Excluding the widespread P. verticillata in clade 1, species from Europe and North America fall into clades 6-8. CONCLUSIONS: Our results suggest that combinations of morphological and geographic characters associated with strongly supported clades are needed to elucidate a comprehensive global phylogeny of Pedicularis. Alternate leaves are inferred to be plesiomorphic in Pedicularis, with multiple transitions to opposite/whorled phyllotaxy. Alternate-leaved species show high diversity in plant habit and floral forms. In the Himalaya-Hengduan Mountains, geographical barriers may have facilitated diversification of species with long corolla tubes, and the reproductive advantages of beakless galeas in opposite-/whorled-leaved species may boost speciation at high altitude.
[Mh] Termos MeSH primário: Pedicularis/classificação
Pedicularis/genética
Filogenia
Proteínas de Plantas/genética
[Mh] Termos MeSH secundário: Núcleo Celular/genética
Núcleo Celular/metabolismo
China
Proteínas de Cloroplastos/genética
Proteínas de Cloroplastos/metabolismo
Pedicularis/anatomia & histologia
Pedicularis/metabolismo
Proteínas de Plantas/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Chloroplast Proteins); 0 (Plant Proteins)
[Em] Mês de entrada:1604
[Cu] Atualização por classe:170220
[Lr] Data última revisão:
170220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150711
[St] Status:MEDLINE
[do] DOI:10.1186/s12870-015-0547-9



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