Base de dados : MEDLINE
Pesquisa : B01.650.940.800.575.912.250.583 [Categoria DeCS]
Referências encontradas : 36 [refinar]
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  1 / 36 MEDLINE  
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[PMID]:29054811
[Au] Autor:Silva SR; Gibson R; Adamec L; Domínguez Y; Miranda VFO
[Ad] Endereço:Universidade Estadual Paulista (Unesp), Instituto de Biociências, Botucatu, São Paulo, Brazil; Universidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabal, Departamento de Biologia Aplicada à Agropecuária, São Paulo, Brazil.. Electronic address: saura.silva@gma
[Ti] Título:Molecular phylogeny of bladderworts: A wide approach of Utricularia (Lentibulariaceae) species relationships based on six plastidial and nuclear DNA sequences.
[So] Source:Mol Phylogenet Evol;118:244-264, 2018 Jan.
[Is] ISSN:1095-9513
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The carnivorous plant genus Utricularia L. (bladderwort) comprises about 240 species distributed worldwide and is traditionally classified into two subgenera (Polypompholyx and Utricularia) and 35 sections, based mainly on general and trap morphology. It is one out of the largest carnivorous genera, representing ca. 30% of all carnivorous plant species, and is also the most widely distributed. According to previous phylogenetic studies, most infrageneric sections are monophyletic, but there are several incongruences considering their relationships and also the dissenting position of some species as a result of a too few (mostly one or two) molecular markers analyzed. Thus, here we present a multilocus phylogeny for Utricularia species with a wide taxonomic sampling (78 species and 115 accessions) based on six plastid (rbcL, matK, rpl20-rps12, rps16, trnL-F) and nuclear DNA (ITS region) sequences. The aim is to reconstruct a well-resolved tree to propose evolutionary and biogeographic hypotheses for the radiation of lineages with inferences about the divergence times of clades using a molecular clock approach.
[Mh] Termos MeSH primário: DNA de Plantas/química
Lamiales/genética
Plastídeos/genética
[Mh] Termos MeSH secundário: Sequência de Bases
Teorema de Bayes
Evolução Biológica
Núcleo Celular/genética
DNA de Plantas/isolamento & purificação
DNA de Plantas/metabolismo
Lamiales/classificação
Filogenia
Proteínas de Plantas/classificação
Proteínas de Plantas/genética
Proteínas de Plantas/metabolismo
Ribulose-Bifosfato Carboxilase/classificação
Ribulose-Bifosfato Carboxilase/genética
Ribulose-Bifosfato Carboxilase/metabolismo
Alinhamento de Sequência
Análise de Sequência de DNA
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Plant); 0 (Plant Proteins); EC 4.1.1.39 (RbcL protein, plastid); EC 4.1.1.39 (Ribulose-Bisphosphate Carboxylase)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180220
[Lr] Data última revisão:
180220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171022
[St] Status:MEDLINE


  2 / 36 MEDLINE  
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[PMID]:29049296
[Au] Autor:Zhao Z; Li Y; Liu H; Zhai X; Deng M; Dong Y; Fan G
[Ad] Endereço:Institute of Paulownia, Henan Agricultural University, Zhengzhou, Henan, China.
[Ti] Título:Genome-wide expression analysis of salt-stressed diploid and autotetraploid Paulownia tomentosa.
[So] Source:PLoS One;12(10):e0185455, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Paulownia tomentosa is a fast-growing tree species with multiple uses. It is grown worldwide, but is native to China, where it is widely cultivated in saline regions. We previously confirmed that autotetraploid P. tomentosa plants are more stress-tolerant than the diploid plants. However, the molecular mechanism underlying P. tomentosa salinity tolerance has not been fully characterized. Using the complete Paulownia fortunei genome as a reference, we applied next-generation RNA-sequencing technology to analyze the effects of salt stress on diploid and autotetraploid P. tomentosa plants. We generated 175 million clean reads and identified 15,873 differentially expressed genes (DEGs) from four P. tomentosa libraries (two diploid and two autotetraploid). Functional annotations of the differentially expressed genes using the Gene Ontology and Kyoto Encyclopedia of Genes and Genomes databases revealed that plant hormone signal transduction and photosynthetic activities are vital for plant responses to high-salt conditions. We also identified several transcription factors, including members of the AP2/EREBP, bHLH, MYB, and NAC families. Quantitative real-time PCR analysis validated the expression patterns of eight differentially expressed genes. Our findings and the generated transcriptome data may help to accelerate the genetic improvement of cultivated P. tomentosa and other plant species for enhanced growth in saline soils.
[Mh] Termos MeSH primário: Lamiales/genética
Ploidias
Tolerância a Sal
[Mh] Termos MeSH secundário: Processamento Alternativo
Perfilação da Expressão Gênica
Genes de Plantas
Lamiales/fisiologia
Fotossíntese/genética
Reguladores de Crescimento de Planta/metabolismo
Reação em Cadeia da Polimerase em Tempo Real
Transdução de Sinais
Fatores de Transcrição/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE; VALIDATION STUDIES
[Nm] Nome de substância:
0 (Plant Growth Regulators); 0 (Transcription Factors)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171107
[Lr] Data última revisão:
171107
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171020
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0185455


  3 / 36 MEDLINE  
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[PMID]:28575081
[Au] Autor:Valtueña FJ; Rodríguez-Riaño T; López J; Mayo C; Ortega-Olivencia A
[Ad] Endereço:Área de Botánica, Facultad de Ciencias, Universidad de Extremadura, Badajoz, Spain.
[Ti] Título:Peripatric speciation in an endemic Macaronesian plant after recent divergence from a widespread relative.
[So] Source:PLoS One;12(6):e0178459, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The Macaronesian Scrophularia lowei is hypothesized to have arisen from the widespread S. arguta on the basis of several phylogenetic studies of the genus, but sampling has been limited. Although these two annual species are morphologically distinct, the origin of S. lowei is unclear because genetic studies focused on this Macaronesian species are lacking. We studied 5 S. lowei and 25 S. arguta populations to determine the relationship of both species and to infer the geographical origin of S. lowei. The timing of S. lowei divergence and differentiation was inferred by dating analysis of the ITS region. A phylogenetic analysis of two nuclear (ITS and ETS) and two chloroplast (psbJ-petA and psbA-trnH) DNA regions was performed to study the relationship between the two species, and genetic differentiation was analysed by AMOVA. Haplotype network construction and Bayesian phylogeographic analysis were conducted using chloroplast DNA regions and a spatial clustering analysis was carried out on a combined dataset of all studied regions. Our results indicate that both species constitute a well-supported clade that diverged in the Miocene and differentiated in the Late Miocene-Pleistocene. Although S. lowei constitutes a well-supported clade according to nDNA, cpDNA revealed a close relationship between S. lowei and western Canarian S. arguta, a finding supported by the spatial clustering analysis. Both species have strong population structure, with most genetic variability explained by inter-population differences. Our study therefore supports a recent peripatric speciation of S. lowei-a taxon that differs morphologically and genetically at the nDNA level from its closest relative, S. arguta, but not according to cpDNA, from the closest Macaronesian populations of that species. In addition, a recent dispersal of S. arguta to Madeira from Canary Islands or Selvagens Islands and a rapid morphological differentiation after the colonization to generate S. lowei is the most likely hypothesis to explain the origin of the last taxon.
[Mh] Termos MeSH primário: Lamiales/classificação
[Mh] Termos MeSH secundário: Oceano Atlântico
Teorema de Bayes
Haplótipos
Ilhas
Lamiales/genética
Filogenia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171009
[Lr] Data última revisão:
171009
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170603
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0178459


  4 / 36 MEDLINE  
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[PMID]:28549207
[Au] Autor:Chimello AM; Jesus JG; Teodoro PE; Rossi AAB; Araújo KL; Marostega TN; Neves LG; Barelli MAA
[Ad] Endereço:Laboratório de Melhoramento de Plantas, Departamento de Agronomia, , , Brasil.
[Ti] Título:Morphological descriptors and ISSR molecular markers in the evaluation of genetic variability of Tectona grandis genotypes.
[So] Source:Genet Mol Res;16(2), 2017 May 25.
[Is] ISSN:1676-5680
[Cp] País de publicação:Brazil
[La] Idioma:eng
[Ab] Resumo:This study aimed to evaluate the genetic variability of the teak germplasm bank, using morphological traits and inter-simple sequence repeat molecular markers. Thirty clones were evaluated in a randomized complete block design with three replicates, and each plot was composed of three plants. A joint analysis of quantitative and qualitative variables was performed using the Gower algorithm. Quantitative, qualitative, and molecular variables were analyzed simultaneously using the Ward-MLM procedure. There is genetic variability among the 30 teak genotypes studied, considering the quantitative, qualitative, and molecular variables by the Ward-MLM statistical procedure. Morphological traits used proved to be efficient for the study of genetic variability; however, it was not possible to compose a descriptor table for clonal teak genotypes based on the traits evaluated. The Gower method was efficient in discriminating the groups, demonstrating that the simultaneous analysis of qualitative and quantitative data is feasible and can allow greater efficiency in the knowledge of the variability among teak genotypes. The genotype 22 showed to be the most divergent compared to the other genotypes, except for the cluster of genotypes by the UPGMA method based on the Gower distance obtained by the Ward-MLM procedure, which formed a group with genotypes 9 and 30, in the morphological and molecular analyses and was grouped alone.
[Mh] Termos MeSH primário: Lamiales/genética
Repetições de Microssatélites
Polimorfismo Genético
[Mh] Termos MeSH secundário: Genótipo
Lamiales/anatomia & histologia
Característica Quantitativa Herdável
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170928
[Lr] Data última revisão:
170928
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170527
[St] Status:MEDLINE
[do] DOI:10.4238/gmr16029665


  5 / 36 MEDLINE  
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[PMID]:28273106
[Au] Autor:Wang Z; Fan G; Dong Y; Zhai X; Deng M; Zhao Z; Liu W; Cao Y
[Ad] Endereço:Institute of Paulownia, Henan Agricultural University, Zhengzhou, Henan, P.R. China.
[Ti] Título:Implications of polyploidy events on the phenotype, microstructure, and proteome of Paulownia australis.
[So] Source:PLoS One;12(3):e0172633, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Polyploidy events are believed to be responsible for increasing the size of plant organs and enhancing tolerance to environmental stresses. Autotetraploid Paulownia australis plants exhibit superior traits compared with their diploid progenitors. Although some transcriptomics studies have been performed and some relevant genes have been revealed, the molecular and biological mechanisms regulating the predominant characteristics and the effects of polyploidy events on P. australis remain unknown. In this study, we compared the phenotypes, microstructures, and proteomes of autotetraploid and diploid P. australis plants. Compared with the diploid plant, the leaves of the autotetraploid plant were longer and wider, and the upper epidermis, lower epidermis, and palisade layer of the leaves were thicker, the leaf spongy parenchyma layer was thinner, the leaf cell size was bigger, and cell number was lower. In the proteome analysis, 3,010 proteins were identified and quantified, including 773 differentially abundant proteins. These results may help to characterize the P. australis proteome profile. Differentially abundant proteins related to cell division, glutathione metabolism, and the synthesis of cellulose, chlorophyll, and lignin were more abundant in the autotetraploid plants. These results will help to enhance the understanding of variations caused by polyploidy events in P. australis. The quantitative real-time PCR results provided details regarding the expression patterns of the proteins at mRNA level. We observed a limited correlation between transcript and protein levels. These observations may help to clarify the molecular basis for the predominant autotetraploid characteristics and be useful for plant breeding in the future.
[Mh] Termos MeSH primário: Lamiales/genética
Lamiales/metabolismo
Fenótipo
Poliploidia
Proteoma
[Mh] Termos MeSH secundário: Duplicação Gênica
Perfilação da Expressão Gênica
Regulação da Expressão Gênica de Plantas
Ontologia Genética
Genoma de Planta
Folhas de Planta
Característica Quantitativa Herdável
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Proteome)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170901
[Lr] Data última revisão:
170901
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170309
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0172633


  6 / 36 MEDLINE  
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[PMID]:28191630
[Au] Autor:Davenport JM; Riley AW
[Ad] Endereço:Department of Biology, Southeast Missouri State University, Cape Girardeau, MO, 63701, USA.
[Ti] Título:Complex inter-Kingdom interactions: carnivorous plants affect growth of an aquatic vertebrate.
[So] Source:J Anim Ecol;86(3):484-489, 2017 May.
[Is] ISSN:1365-2656
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Coexistence of organisms in nature is more likely when phenotypic similarities of individuals are reduced. Despite the lack of similarity, distantly related taxa still compete intensely for shared resources. No larger difference between organisms that share a common prey could exist than between carnivorous plants and animals. However, few studies have considered inter-Kingdom competition among carnivorous plants and animals. In order to evaluate interactions between a carnivorous plant (greater bladderwort, Utricularia vulgaris) and a vertebrate (bluegill, Lepomis macrochirus) on a shared prey (zooplankton), we conducted a mesocosm experiment. We deployed two levels of bladderwort presence (functional and crushed) and measured bluegill responses (survival and growth). Zooplankton abundance was reduced the greatest in bluegill and functional bladderwort treatments. Bluegill survival did not differ among treatments, but growth was greatest with crushed bladderwort. Thus, bluegill growth was facilitated by reducing interference competition in the presence of crushed bladderwort. The facilitating effect was dampened, however, when functional bladderwort removed a shared prey. To our knowledge, this is one of the first studies to experimentally demonstrate interactions between a carnivorous plant and a fish. Our data suggest that carnivorous plants may actively promote or reduce animal co-occurrence from some ecosystems via facilitation or competition.
[Mh] Termos MeSH primário: Cadeia Alimentar
Lamiales/fisiologia
Perciformes/fisiologia
[Mh] Termos MeSH secundário: Animais
Dinâmica Populacional
Zooplâncton
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170928
[Lr] Data última revisão:
170928
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170214
[St] Status:MEDLINE
[do] DOI:10.1111/1365-2656.12652


  7 / 36 MEDLINE  
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[PMID]:27734287
[Au] Autor:Atale N; Saxena S; Nirmala JG; Narendhirakannan RT; Mohanty S; Rani V
[Ad] Endereço:Department of Biotechnology, Jaypee Institute of Information Technology, A-10, Sector-62, Noida, Uttar Pradesh, 201307, India.
[Ti] Título:Synthesis and Characterization of Sygyzium cumini Nanoparticles for Its Protective Potential in High Glucose-Induced Cardiac Stress: a Green Approach.
[So] Source:Appl Biochem Biotechnol;181(3):1140-1154, 2017 Mar.
[Is] ISSN:1559-0291
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:There exists a complex and multifactorial relationship between diabetes and cardiovascular disease. Hyperglycemia is an important factor imposing damage (glucose toxicity) on cardiac cell leading to diabetic cardiomyopathy. There are substantial clinical evidences on the adverse effects of conventional therapies in the prevention/treatment of diabetic cardiovascular complications. Currently, green-synthesized nanoparticles have emerged as a safe, efficient, and inexpensive alternative for therapeutic uses. The present study discloses the silver nanoparticle biosynthesizing capability and cardioprotective potential of Syzygium cumini seeds already reported to have antidiabetic properties. Newly generated silver nanoparticles S. cumini MSE silver nanoparticles (SmSNPs) were characterized by UV-visible spectroscopy, scanning electron microscopy (SEM), zeta sizer, X-ray diffraction (XRD), and Fourier transform infrared (FTIR) spectroscopy. Using methanolic extract of S. cumini seeds, an average size of 40-100-nm nanoparticles with 43.02 nm and -19.6 mV zeta potential were synthesized. The crystalline nature of SmSNPs was identified by using XRD. 2,2-Diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid (ABTS) assays revealed the antioxidative potential to be 66.87 (±0.7) % and 86.07 (±0.92) % compared to 60.29 (±0.02) % and 85.67 (±1.27) % for S. cumini MSE. In vitro study on glucose-stressed H9C2 cardiac cells showed restoration in cell size, nuclear morphology, and lipid peroxide formation upon treatment of SmSNPs. Our findings concluded that S. cumini MSE SmSNPs significantly suppress the glucose-induced cardiac stress in vitro by maintaining the cellular integrity and reducing the oxidative damages therefore establishing its therapeutic potential in diabetic cardiomyopathy.
[Mh] Termos MeSH primário: Cardiomiopatias Diabéticas/tratamento farmacológico
Hipoglicemiantes
Lamiales/química
Nanopartículas Metálicas/química
Sementes/química
Prata
[Mh] Termos MeSH secundário: Animais
Linhagem Celular
Hipoglicemiantes/química
Hipoglicemiantes/farmacologia
Ratos
Prata/química
Prata/farmacologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Hypoglycemic Agents); 3M4G523W1G (Silver)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:170302
[Lr] Data última revisão:
170302
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161014
[St] Status:MEDLINE
[do] DOI:10.1007/s12010-016-2274-6


  8 / 36 MEDLINE  
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[PMID]:27720784
[Au] Autor:Smith JF; Clark JL; Amaya-Márquez M; Marín-Gómez OH
[Ad] Endereço:Department of Biological Sciences, Boise State University, 1910 University Drive, Boise, ID 83725-1515, USA. Electronic address: jfsmith@boisestate.edu.
[Ti] Título:Resolving incongruence: Species of hybrid origin in Columnea (Gesneriaceae).
[So] Source:Mol Phylogenet Evol;106:228-240, 2017 Jan.
[Is] ISSN:1095-9513
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Speciation by hybridization has long been recognized among plants and includes both homoploid and allopolyploid speciation. The numbers of presumed hybrid species averages close to 11% and tends to be concentrated in a subset of angiosperm families. Recent advances in molecular methods have verified species of hybrid origin that had been presumed on the basis of morphology and have identified species that were not initially considered hybrids. Identifying species of hybrid origin is often a challenge and typically based on intermediate morphology, or discrepancies between molecular datasets. Discrepancies between data partitions may result from several factors including poor support, incomplete lineage sorting, or hybridization. A phylogenetic analysis of species in Columnea (Gesneriaceae) indicated significant incongruencies between the cpDNA and nrDNA datasets. Tests that examined whether one or both of the datasets had the phylogenetic signal to reject the topology of the alternate dataset (Shimodaira and Hasegawa [SH] and approximately unbiased [AU] tests) indicated significant differences between the topologies. Splitstree analyses also showed that there was support for the placement of the discrepant taxa in both datasets and that the combined data placed the putative hybrid species in an intermediate position between the two datasets. The genealogical sorting index (GSI) implied that coalescence in nrDNA had occurred in all species where more than a single individual had been sampled, but the GSI value was lower for the cpDNA of most of the putative hybrids, implying that these regions have not yet coalesced in these lineages despite being haploid. The JML test that evaluates simulated species pairwise distances against observed distances also implies that observed nrDNA data generate shorter distances than simulated data, implying hybridization. It is most likely that C. gigantifolia, C. rubriacuta, and C. sp. nov. represent a lineage from a hybrid ancestor, but C. moorei may be a more recent hybrid and may still be undergoing hybridization with sympatric species.
[Mh] Termos MeSH primário: Hibridização Genética
Lamiales/classificação
[Mh] Termos MeSH secundário: Teorema de Bayes
Cloroplastos/genética
DNA de Plantas/química
DNA de Plantas/isolamento & purificação
DNA de Plantas/metabolismo
Lamiales/genética
Filogenia
Alinhamento de Sequência
Análise de Sequência de DNA
Simpatria
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Plant)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171004
[Lr] Data última revisão:
171004
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161011
[St] Status:MEDLINE


  9 / 36 MEDLINE  
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[PMID]:28030566
[Au] Autor:De Castro O; Innangi M; Di Maio A; Menale B; Bacchetta G; Pires M; Noble V; Gestri G; Conti F; Peruzzi L
[Ad] Endereço:Dipartimento di Biologia, Università degli Studi di Napoli Federico II, Napoli, Italy.
[Ti] Título:Disentangling Phylogenetic Relationships in a Hotspot of Diversity: The Butterworts (Pinguicula L., Lentibulariaceae) Endemic to Italy.
[So] Source:PLoS One;11(12):e0167610, 2016.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The genus Pinguicula (Lentibulariaceae) consists of about 100 carnivorous species, also known as butterworts. Eleven taxa are endemic to Italy, which represents a biodiversity hotspot for butterworts in Europe. The aim of our study was to provide a phylogenetic framework for the Italian endemics, in order to: a) investigate the relationships between species in this group; b) evaluate their actual taxonomic value. To achieve this, we analysed all the taxa endemic to Italy, along with several other species, by means of ITS nrDNA analysis. Our results clarify the relationships between Italian endemics and other Pinguicula taxa identifying a basal polytomy defined by five clades. All of the Italian endemics (with the exception of P. lavalvae) fall within a single large clade, which includes P. vulgaris and allied species. Among them, P. poldinii represents the most isolated lineage. Other taxa show strong molecular similarities and form a single subclade, although their taxonomic ranks can be retained. Pinguicula lattanziae sp. nov., seemingly endemic to Liguria (NW Italy), is also described.
[Mh] Termos MeSH primário: Biodiversidade
Lamiales/classificação
Filogenia
[Mh] Termos MeSH secundário: Itália
Lamiales/crescimento & desenvolvimento
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170705
[Lr] Data última revisão:
170705
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161229
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0167610


  10 / 36 MEDLINE  
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[PMID]:27764252
[Au] Autor:Silva SR; Diaz YC; Penha HA; Pinheiro DG; Fernandes CC; Miranda VF; Michael TP; Varani AM
[Ad] Endereço:Instituto de Biociências, UNESP - Univ Estadual Paulista, Câmpus Botucatu, São Paulo, Brazil.
[Ti] Título:The Chloroplast Genome of Utricularia reniformis Sheds Light on the Evolution of the ndh Gene Complex of Terrestrial Carnivorous Plants from the Lentibulariaceae Family.
[So] Source:PLoS One;11(10):e0165176, 2016.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Lentibulariaceae is the richest family of carnivorous plants spanning three genera including Pinguicula, Genlisea, and Utricularia. Utricularia is globally distributed, and, unlike Pinguicula and Genlisea, has both aquatic and terrestrial forms. In this study we present the analysis of the chloroplast (cp) genome of the terrestrial Utricularia reniformis. U. reniformis has a standard cp genome of 139,725bp, encoding a gene repertoire similar to essentially all photosynthetic organisms. However, an exclusive combination of losses and pseudogenization of the plastid NAD(P)H-dehydrogenase (ndh) gene complex were observed. Comparisons among aquatic and terrestrial forms of Pinguicula, Genlisea, and Utricularia indicate that, whereas the aquatic forms retained functional copies of the eleven ndh genes, these have been lost or truncated in terrestrial forms, suggesting that the ndh function may be dispensable in terrestrial Lentibulariaceae. Phylogenetic scenarios of the ndh gene loss and recovery among Pinguicula, Genlisea, and Utricularia to the ancestral Lentibulariaceae cladeare proposed. Interestingly, RNAseq analysis evidenced that U. reniformis cp genes are transcribed, including the truncated ndh genes, suggesting that these are not completely inactivated. In addition, potential novel RNA-editing sites were identified in at least six U. reniformis cp genes, while none were identified in the truncated ndh genes. Moreover, phylogenomic analyses support that Lentibulariaceae is monophyletic, belonging to the higher core Lamiales clade, corroborating the hypothesis that the first Utricularia lineage emerged in terrestrial habitats and then evolved to epiphytic and aquatic forms. Furthermore, several truncated cp genes were found interspersed with U. reniformis mitochondrial and nuclear genome scaffolds, indicating that as observed in other smaller plant genomes, such as Arabidopsis thaliana, and the related and carnivorous Genlisea nigrocaulis and G. hispidula, the endosymbiotic gene transfer may also shape the U. reniformis genome in a similar fashion. Overall the comparative analysis of the U. reniformis cp genome provides new insight into the ndh genes and cp genome evolution of carnivorous plants from Lentibulariaceae family.
[Mh] Termos MeSH primário: Genoma de Cloroplastos
Lamiales/classificação
Lamiales/genética
NADH Desidrogenase/genética
Proteínas de Plantas/genética
[Mh] Termos MeSH secundário: Teorema de Bayes
Códon
Evolução Molecular
Funções Verossimilhança
Repetições de Microssatélites/genética
NADH Desidrogenase/classificação
NADH Desidrogenase/metabolismo
Filogenia
Proteínas de Plantas/metabolismo
Edição de RNA
RNA de Plantas/química
RNA de Plantas/isolamento & purificação
RNA de Plantas/metabolismo
Análise de Sequência de RNA
Transcriptoma
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Codon); 0 (Plant Proteins); 0 (RNA, Plant); EC 1.6.99.3 (NADH Dehydrogenase)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170613
[Lr] Data última revisão:
170613
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161021
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0165176



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