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Registros recuperados: 54 | |
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SOUZA, E. B.; NICKEL, O.; FAJARDO, T. V. M.; SILVA, J. M. F.; BARROS, D. R.. |
Apple stem grooving virus (ASGV, genus Capillovirus) is disseminated worldwide, usually causing a latent infection in most commercial apple cultivars. However, infected scions grafted onto sensitive material display reduction of yield, loss of fruit quality and tree decline. In Brazil ASGV is associated with severe phloem necrosis, xylem pitting and decline of apple trees on Maruba-kaido (Malus prunifolia cv. Ringo) rootstocks usually in a complex with other latent viruses. Two Brazilian ASGV isolates from a mixed infection causing differing reactions on apple cv. Fuji on Maruba-kaido rootstocks, i.e., normal growth vs. tree decline, have been completely sequenced. The differing intensity of symptoms they co-induced on several woody indicator... |
Tipo: Artigo de periódico |
Palavras-chave: Apple virus; Recombination.; ASGV (Apple stem grooving virus); Phylogenetic analysis. |
Ano: 2017 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1071609 |
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Zhao,Shan; Jiang,Qian-Tao; Ma,Jian; Wang,Ji-Rui; Liu,Ya-Xi; Chen,Guo-Yue; Qi,Peng-Fei; Pu,Zhi-En; Lu,Zhen-Xiang; Zheng,You-Liang; Wei,Yu-Ming. |
The WUSCHEL (WUS)-related homeobox (WOX) gene family coordinates transcription during the early phases of embryogenesis. In this study, a putative WOX2 homolog was isolated and characterized from Aegilops tauschii, the donor of D genome of Triticum aestivum. The sequence consisted of 2045 bp, and contained an open reading frame (ORF), encoded 322 amino acids. The predicted protein sequence contained a highly conserved homeodomain and the WUS-box domain, which is present in some members of the WOX protein family. The full-length ORF was subcloned into prokaryotic expression vector pET-30a, and an approximately 34-kDa protein was expressed in Escherichia coli BL21 (DE3) cells with IPTG induction. The molecular mass of the expressed protein was identical to... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: WOX2; Aegilops tauschii; Phylogenetic analysis; Real-time quantitative PCR. |
Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000100079 |
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Krapp-Schickel, T.; Koenemann, S.. |
The amphipod family Stenothoidae contains more than 200 species in about 40 genera; these genera are at present often defined not by the presence, but by the absence of synapomorphies, thus defining grades rather than clades. Our phylogenetic analyses yielded 4 groups of stenothoids: a basic proboloidid clade; an advanced and always clearly separated Austral-Antarctic thaumatelsonid clade, with a possibly related Arctic mesometopid clade; and finally a poorly resolved group, the stenothoids sensu stricto, including the large and probably polyphyletic genera Stenothoe and Metopa, each with more than 50 species. It is proposed to study and analyse these groups separately in future, based on better redescriptions of the individual species. Our analyses... |
Tipo: Article / Letter to the editor |
Palavras-chave: Taxonomy; Amphipoda; Stenothoidae; Thaumatelsonidae; Phylogenetic analysis; 42.74. |
Ano: 2006 |
URL: http://www.repository.naturalis.nl/record/214545 |
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Li,Huixin; Liu,Shengwang; Han,Zongxi; Shao,Yuhao; Chen,Shuhong; Kong,Xiangang. |
The nucleotide sequences of eight open reading frames (ORFs) located at the 5' end of the unique long region of the duck enteritis virus (DEV) Clone-03 strain were determined. The genes identified were designated UL1 , UL2 , UL3 , UL4 , UL5 , UL6 and UL 7 homologues of the herpes simplex virus 1 (HSV-1). The DEV UL3.5 located between UL3 and UL4 had no homologue in the HSV-1. The arrangement and transcription orientation of the eight genes were collinear with their homologues in the HSV-1. Phylogenetic trees were constructed based on the alignments of the deduced amino acids of eight proteins with their homologues in 12 alpha-herpesviruses. In the UL1, UL3, UL3.5, UL5 and UL7 proteins trees, the branches were more closely related to the genus... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Duck enteritis virus; UL1-UL7 genes; Phylogenetic analysis. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000100018 |
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Jaklitsch, W.M.; Samuels, G.J.; Ismaiel, A.; Voglmayr, H.. |
Trichoderma viridescens is recognised as a species complex. Multigene analyses based on the translation elongation factor 1-alpha encoding gene (tef1), a part of the rpb2 gene, encoding the second largest RNA polymerase subunit and the larger subunit of ATP citrate lyase (acl1) reveals 13 phylogenetic species with little or no phenotypic differentiation. This is the first use of acl1 in Trichoderma phylogenetics. The typification of T. viridescens s.str. is clarified and Hypocrea viridescens is replaced by the new name T. paraviridescens. Besides these two species, eleven are phylogenetically recognised and T. olivascens, T. viridarium, T. virilente, T. trixiae, T. viridialbum, T. appalachiense, T. neosinense, T. composticola, T. nothescens and T.... |
Tipo: Article / Letter to the editor |
Palavras-chave: Acl1; Hypocrea; Hypocreaceae; Phylogenetic analysis; Rpb2; Systematics; Tef1. |
Ano: 2013 |
URL: http://www.repository.naturalis.nl/record/532266 |
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Cunha,L.K.H.; Kashima,S.; Amarante,M.F.C.; Haddad,R.; Rodrigues,E.S.; Silva,K.L.T.; Lima,T.A.; Castro,D.B.; Brito,F.C.; Almeida,E.G.; Covas,D.T.; Malheiro,A.. |
Few studies have reported the molecular epidemiological characterization of HIV-1 in the Northern region of Brazil. The present study reports the molecular and epidemiological characterization of 31 HIV-1 isolates from blood donors from the State of Amazonas who donated blood between April 2006 and March 2007. Serum/plasma samples from all donors were screened for HIV antibodies by ELISA and the results confirmed by Western blot analysis. Genomic DNA was extracted from the buffy coat using the Super Quik-Gene-DNA Isolation kit. Nested PCR was performed on the env, gag, and pol regions of HIV-1 using the Gene Amp PCR System 9700. Sequencing reactions were performed using the inner PCR primers and the DYEnamic™ ET Dye Terminator Kit, and phylogenetic... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: HIV-1; Subtypes; Phylogenetic analysis; Blood donors; Molecular and epidemiological characterization. |
Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000200003 |
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Rabello,Aline R.; Queiroz,Paulo R.; Simões,Kenya C.C.; Hiragi,Cássia O.; Lima,Luzia H.C.; Oliveira,Maria Regina V.; Mehta,Angela. |
The Bemisia tabaci complex is formed by approximately 41 biotypes, two of which (B and BR) occur in Brazil. In this work we aimed at obtaining genetic markers to assess the genetic diversity of the different biotypes. In order to do that we analyzed Bemisia tabaci biotypes B, BR, Q and Cassava using molecular techniques including RAPD, PCR-RFLP and sequencing of the ITS1 rDNA region. The analyses revealed a high similarity between the individuals of the B and Q biotypes, which could be distinguished from the BR individuals. A phylogenetic tree based on ITS1 rDNA sequence was constructed. This is the first report of the ITS1 rDNA sequence of Bemisia tuberculata and of the BR biotype of B. tabaci. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Whitefly; ITS rDNA; Genetic diversity; Phylogenetic analysis. |
Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000300029 |
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García,Adriana; Rhoden,Sandro A; Rubin Filho,Celso J; Nakamura,Celso V; Pamphile,João A. |
Endophytic fungi inhabit vegetable tissues or organs, without causing them any harm. Endophytes can co-evolve with plant hosts and possess species-specific interactions. They can protect the plant from insect attacks and diseases, and are also able to produce substances of biotechnological interest. In folk medicine, the bark, roots and fruits of Sapindus saponaria is used to produce substances with anxiolytic, astringent, diuretic and expectorant properties, as well as tonics, blood depuratives and cough medicine. This study evaluated the diversity of endophytic fungi present in the leaves of S. saponaria L. and observed the colonization of host plants by endophytes, using light and scanning electron microscopy. We verified that these fungi are found in... |
Tipo: Journal article |
Palavras-chave: Endophyte; Light microscopy; Phylogenetic analysis; SEM. |
Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602012000200006 |
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Kothe, Caroline; Delbarre-ladrat, Christine; Renault, Pierre; Passerini, Delphine. |
Halophilic and psychrophilic marine bacteria are source of interesting bioactive molecules for biotechnology. We report here the whole-genome sequences of two of them, Pseudoalteromonas sp. MIP2626 isolated from tropical peeled shrimps and Psychrobacter sp. BI730 isolated from deep-sea hydrothermal vent. Sequencing of both genomes was performed by Illumina HiSeq platform (2 × 150 pb). De novo assemblies using Spades v3.9 generated 136 contigs for Pseudoalteromonas MIP2626 and 42 contigs for Psychrobacter BI730, representing a genome size of 3.9 Mb and 3.2 Mb, respectively. Phylogenetic based on 16S rRNA gene sequence and phylogenomic analyses were reported to compare the new sequences with Pseudoalteromonas and Psychrobacter representative strains... |
Tipo: Text |
Palavras-chave: Aquatic; Genomic; Phylogenetic analysis; Halophilic. |
Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00635/74662/74568.pdf |
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Aşkar,S. |
ABSTRACT Chicken infectious anemia (CIA) is an immune-suppressive disease caused by chicken anemia virus (CAV). It is characterized by lymphoid atrophy, aplastic anemia, especially in chicks. In this study, full-length genomic characterization of CAV DNA from the broiler flocks in Turkey and phylogenetic analysis were aimed. In the study, CAV DNA were found positive for 37 (53%) flocks with PCR studies from thymus tissues of each 70 broiler flocks. And 17 purified CAV DNA PCR products from these 37 CAV isolates were full length sequenced with the NGS method (Illumina MiSeq). Also with the phylogenetic analyses, full length PCR products of 17 purified CAV isolates have been determined as 2298bp genome size and 99% similarity with each other. The highest... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler; Chicken Infectious Anemia; Phylogenetic analysis. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000300323 |
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Médici,K.C.; Barry,A.F.; Alfieri,A.F.; Alfieri,A.A.. |
Group B rotaviruses (RV-B) were first identified in piglet feces, being later associated with diarrhea in humans, cattle, lambs, and rats. In human beings, the virus was only described in China, India, and Bangladesh, especially infecting adults. Only a few studies concerning molecular analysis of the RV-B NSP2 gene have been conducted, and porcine RV-B has not been characterized. In the present study, three porcine wild-type RV-B strains from piglet stool samples collected from Brazilian pig herds were used for analysis. PAGE results were inconclusive for those samples, but specific amplicons of the RV-B NSP2 gene (segment 8) were obtained in a semi-nested PCR assay. The three porcine RV-B strains showed the highest nucleotide identity with the human WH1... |
Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Piglets; Diarrhea; Group B rotavirus; NSP2 gene; Phylogenetic analysis. |
Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2010000100003 |
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HWANG, E.-Y.; WEI, H.; SCHROEDER, S. G.; FICKUS, E. W.; QUIGLEY, C. V.; ELIA, P.; ARAYA, S.; DONG, F.; COSTA, L.; FERREIRA, M. E.; CREGAN, P. B.; SONG, Q.. |
Tipo: Artigo de periódico |
Palavras-chave: Divergence; Nucleotide diversity; Perennial crop relatives; Phylogenetic analysis; Trans-specific polymorphism; Soybeans. |
Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1112726 |
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Ishida,Juliane Karine; Caldas,Danielle G.G.; Oliveira,Lucas Roberto; Frederici,Gabriela Campos; Leite,Lucas Margato Pereira; Mui,Tsai Siu. |
Abstract Transporter proteins play an essential role in the uptake, trafficking and storage of metals in plant tissues. The Natural Resistance-Associated Macrophage Protein (NRAMP) family plays an essential role in divalent metal transport. We conducted bioinformatics approaches to identify seven NRAMP genes in the Phaseolus vulgaris genome, investigated their phylogenetic relation, and performed transmembrane domain and gene/protein structure analyses. We found that the NRAMP gene family forms two distinct groups. One group included the PvNRAMP1, -6, and -7 genes that share a fragmented structure with a numerous exon/intron organization and encode proteins with mitochondrial or plastidial localization. The other group is characterized by few exons that... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phaseolus vulgaris; Transporter; NRAMP; Gene family; Phylogenetic analysis. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572018000500820 |
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Hu,Lifang; Liu,Shiqiang. |
Members of the ERF transcription-factor family participate in a number of biological processes, viz., responses to hormones, adaptation to biotic and abiotic stress, metabolism regulation, beneficial symbiotic interactions, cell differentiation and developmental processes. So far, no tissue-expression profile of any cucumber ERF protein has been reported in detail. Recent completion of the cucumber full-genome sequence has come to facilitate, not only genome-wide analysis of ERF family members in cucumbers themselves, but also a comparative analysis with those in Arabidopsis and rice. In this study, 103 hypothetical ERF family genes in the cucumber genome were identified, phylogenetic analysis indicating their classification into 10 groups, designated I to... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cucumis sativus L.; ERF; Phylogenetic analysis; Transcription factor; Genome sequence. |
Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000400015 |
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Registros recuperados: 54 | |
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