Soil biochemistry and microbial activity in vineyards under conventional and organic management at Northeast Brazil.

The São Francisco Submedium Valley is located at the Brazilian semiarid region and is an important center for irrigated fruit growing. This region is responsible for 97% of the national exportation of table grapes, including seedless grapes. Based on the fact that orgThe São Francisco Submedium Valley is located at the Brazilian semiarid region and is an important center for irrigated fruit growing. This region is responsible for 97% of the national exportation of table grapes, including seedless grapes. Based on the fact that organic fertilization can improve soil quality, we compared the effects of conventional and organic soil management on microbial activity and mycorrhization of seedless grape crops. We measured glomerospores number, most probable number (MPN) of propagules, richness of arbuscular mycorrhizal fungi (AMF) species, AMF root colonization, EE-BRSP production, carbon microbial biomass (C-MB), microbial respiration, fluorescein diacetate hydrolytic activity (FDA) and metabolic coefficient (qCO2). The organic management led to an increase in all variables with the exception of EE-BRSP and qCO2. Mycorrhizal colonization increased from 4.7% in conventional crops to 15.9% in organic crops. Spore number ranged from 4.1 to 12.4 per 50 g-1 soil in both management systems. The most probable number of AMF propagules increased from 79 cm-3 soil in the conventional system to 110 cm-3 soil in the organic system. Microbial carbon, CO2 emission, and FDA activity were increased by 100 to 200% in the organic crop. Thirteen species of AMF were identified, the majority in the organic cultivation system. Acaulospora excavata, Entrophospora infrequens, Glomus sp.3 and Scutellospora sp. were found only in the organically managed crop. S. gregaria was found only in the conventional crop. Organically managed vineyards increased mycorrhization and general soil microbial activity

Building The Sugarcane Genome For Biotechnology And Identifying Evolutionary Trends

Background: Sugarcane is the source of sugar in all tropical and subtropical countries and is becoming increasingly important for bio-based fuels. However, its large (10 Gb), polyploid, complex genome has hindered genome based breeding efforts. Here we release the largest and most diverse set of sugarcane genome sequences to date, as part of an on-going initiative to provide a sugarcane genomic information resource, with the ultimate goal of producing a gold standard genome.Results: Three hundred and seventeen chiefly euchromatic BACs were sequenced. A reference set of one thousand four hundred manually-annotated protein-coding genes was generated. A small RNA collection and a RNA-seq library were used to explore expression patterns and the sRNA landscape. In the sucrose and starch metabolism pathway, 16 non-redundant enzyme-encoding genes were identified. One of the sucrose pathway genes, sucrose-6-phosphate phosphohydrolase, is duplicated in sugarcane and sorghum, but not in rice and maize. A diversity analysis of the s6pp duplication region revealed haplotype-structured sequence composition. Examination of hom(e)ologous loci indicate both sequence structural and sRNA landscape variation. A synteny analysis shows that the sugarcane genome has expanded relative to the sorghum genome, largely due to the presence of transposable elements and uncharacterized intergenic and intronic sequences.Conclusion: This release of sugarcane genomic sequences will advance our understanding of sugarcane genetics and contribute to the development of molecular tools for breeding purposes and gene discovery. © 2014 de Setta et al.; licensee BioMed Central Ltd.151European Commission: Agriculture and Rural Development: Sugar http://ec.europa.eu/agriculture/sugar/index_en.htmKellogg, E.A., Evolutionary history of the grasses (2001) Plant Physiol, 125, pp. 1198-1205Grivet, L., Arruda, P., Sugarcane genomics: depicting the complex genome of an important tropical crop (2001) Curr Opin Plant Biol, 5, pp. 122-127Piperidis, G., Piperidis, N., D'Hont, A., Molecular cytogenetic investigation of chromosome composition and transmission in sugarcane (2010) Mol Genet Genomics, 284, pp. 65-73D'Hont, A., Unraveling the genome structure of polyploids using FISH and GISHexamples of sugarcane and banana (2005) Cytogenet Genome Res, 109, pp. 27-33D'Hont, A., Glaszmann, J.C., Sugarcane genome analysis with molecular markers: a first decade of research (2001) Int Soc Sugar Cane Technol Proc XXIV Congr, pp. 556-559Tomkins, J., Yu, Y., Miller-Smith, H., Frisch, D., Woo, S., Wing, R., A bacterial artificial chromosome library for sugarcane (1999) Theor Appl Genet, 99, pp. 419-424Vettore, L., Silva, F.R., Kemper, E.L., Souza, G.M., Silva, A.M., Ferro, M., Henrique-Silva, F., Monteiro-Vitorello, C.B., Analysis and functional annotation of an expressed sequence tag collection for tropical crop sugarcane (2003) Genome Res, 13, pp. 2725-2735Repbase http://www.girinst.org/repbase/Domingues, D.S., Cruz, G.M.Q., Metcalfe, C.J., Nogueira, F.T.S., Vicentini, R., Alves, C.S., Van Sluys, M.-A., Analysis of plant LTR-retrotransposons at the fine-scale family level reveals individual molecular patterns (2012) BMC Genomics, 13, p. 137National Center for Biotechnology Information (NCBI) http://www.ncbi.nlm.nih.gov/Meyer, F., Paarmann, D., D'Souza, M., Olson, R., Glass, E.M., Kubal, M., Paczian, T., Edwards, R.A., The metagenomics RAST server - a public resource for the automatic phylogenetic and functional analysis of metagenomes (2008) BMC Bioinformatics, 9, p. 386Keeling, P.L., Myers, A.M., Biochemistry and genetics of starch synthesis (2010) Annu Rev Food Sci Technol, 1, pp. 271-303Phytozome v9.1: Home http://www.phytozome.net/Dias, E.S., Carareto, C.M.A., Ancestral polymorphism and recent invasion of transposable elements in Drosophila species (2012) BMC Evol Biol, 12, p. 119Posada, D., Crandall, K., Intraspecific gene genealogies: trees grafting into networks (2001) Trends Ecol Evol, 16, pp. 37-45Swaminathan, K., Alabady, M.S., Varala, K., De Paoli, E., Ho, I., Rokhsar, D.S., Arumuganathan, A.K., Hudson, M.E., Genomic and small RNA sequencing of Miscanthus x giganteus shows the utility of sorghum as a reference genome sequence for Andropogoneae grasses (2010) Genome Biol, 11, pp. R12Zanca, A.S., Vicentini, R., Ortiz-Morea, F.A., Del Bem, L.E., da Silva, M.J., Vincentz, M., Nogueira, F.T., Identification and expression analysis of microRNAs and targets in the biofuel crop sugarcane (2010) BMC Plant Biol, 10, p. 260Piriyapongsa, J., Jordan, I.K., A family of human microRNA genes from miniature inverted-repeat transposable elements (2007) PLoS ONE, 2, pp. e203Barrera-Figueroa, B.E., Gao, L., Wu, Z., Zhou, X., Zhu, J., Jin, H., Liu, R., Zhu, J.-K., High throughput sequencing reveals novel and abiotic stress-regulated microRNAs in the inflorescences of rice (2012) BMC Plant Biol, 12, p. 132Nagaki, K., Tsujimoto, H., Sasakuma, T., A novel repetitive sequence of sugar cane, SCEN family, locating on centromeric regions (1998) Chromosom Res, 6, pp. 295-302Nagaki, K., Neumann, P., Zhang, D., Ouyang, S., Buell, C.R., Cheng, Z., Jiang, J., Structure, divergence, and distribution of the CRR centromeric retrotransposon family in rice (2005) Mol Biol Evol, 22, pp. 845-855Vicentini, R., Del Bem, L.E., Van Sluys, M.-A., Nogueira, F., Vincentz, M., Gene content analysis of sugarcane public ESTs reveals thousands of missing coding-genes and an unexpected pool of grasses conserved ncRNAs (2012) Trop Plant Biol, 5, pp. 199-205Kim, C., Lee, T.-H., Compton, R.O., Robertson, J.S., Pierce, G.J., Paterson, A.H., A genome-wide BAC end-sequence survey of sugarcane elucidates genome composition, and identifies BACs covering much of the euchromatin (2013) Plant Mol Biol, 81, pp. 139-147Paterson, A.H., Bowers, J.E., Bruggmann, R., Dubchak, I., Grimwood, J., Gundlach, H., Haberer, G., Carpita, N.C., The Sorghum bicolor genome and the diversification of grasses (2009) Nature, 457, pp. 551-556Chang, Y., Gong, L., Yuan, W., Li, X., Chen, G., Li, X., Zhang, Q., Wu, C., Replication protein A (RPA1a) is required for meiotic and somatic DNA repair but is dispensable for DNA replication and homologous recombination in rice (2009) Plant Physiol, 151, pp. 2162-2173Feschotte, C., Transposable elements and the evolution of regulatory networks (2008) Nat Rev Genet, 9, pp. 397-405Wang, J., Roe, B., Macmil, S., Yu, Q., Murray, J.E., Tang, H., Chen, C., Ming, R., Microcollinearity between autopolyploid sugarcane and diploid sorghum genomes (2010) BMC Genomics, 11, p. 261Garsmeur, O., Charron, C., Bocs, S., Jouffe, V., Samain, S., Couloux, A., Droc, G., D'Hont, A., High homologous gene conservation despite extreme autopolyploid redundancy in sugarcane (2011) New Phytol, 189, pp. 629-642Jannoo, N., Grivet, L., Chantret, N., Garsmeur, O., Glaszmann, J.C., Arruda, P., D'Hont, A., Orthologous comparison in a gene-rich region among grasses reveals stability in the sugarcane polyploid genome (2007) Plant J, 50, pp. 574-585Figueira, T.R.E.S., Okura, V., da Silva, F.R., da Silva, M.J., Kudrna, D., Ammiraju, J.S.S., Talag, J., Arruda, P., A BAC library of the SP80-3280 sugarcane variety (saccharum sp.) and its inferred microsynteny with the sorghum genome (2012) BMC Res Notes, 5, p. 185Schnable, P.S., Ware, D., Fulton, R.S., Stein, J.C., Wei, F., Pasternak, S., Liang, C., Gillam, B., The B73 maize genome: complexity, diversity, and dynamics (2009) Science, 326, pp. 1112-1115Tenaillon, M.I., Hufford, M.B., Gaut, B.S., Ross-Ibarra, J., Genome size and transposable element content as determined by high-throughput sequencing in maize and Zea luxurians (2011) Genome Biol Evol, 3, pp. 219-229Zhang, J., Yu, C., Krishnaswamy, L., Peterson, T., Transposable Elements as Catalysts for Chromosome Rearrangements (2011) Methods Mol Biol, pp. 315-326. , Totowa, NJ: Humana Press, Birchler JAMa, J., Wing, R.A., Bennetzen, J.L., Jackson, S.A., Plant centromere organization: a dynamic structure with conserved functions (2007) Trends Genet, 23, pp. 134-139D'Hont, A., Grivet, L., Feldmann, P., Rao, S., Berding, N., Glaszmann, J.C., Characterisation of the double genome structure of modern sugarcane cultivars (Saccharum spp.) by molecular cytogenetics (1996) Mol Gen Genet, 250, pp. 405-413Bao, Y., Wendel, J.F., Ge, S., Multiple patterns of rDNA evolution following polyploidy in Oryza (2010) Mol Phylogenet Evol, 55, pp. 136-142Lynch, M., (2007) The Origins of Genome Architecture, , Sunderland, Massachussetts, USA: Sinauer Associates IncThe map-based sequence of the rice genome (2005) Nature, 436, pp. 793-800. , International Rice Genome Sequencing ProjectLiu, B., Xu, C., Zhao, N., Qi, B., Kimatu, J.N., Pang, J., Han, F., Rapid genomic changes in polyploid wheat and related species: implications for genome evolution and genetic improvement (2009) J Genet Genomics, 36, pp. 519-528Lisch, D., How important are transposons for plant evolution? (2012) Nat Rev Genet, 14, pp. 49-61Udall, J.A., Wendel, J.F., Polyploidy and crop improvement (2006) Crop Sci, 46, pp. S3-S14Varshney, R.K., Graner, A., Sorrells, M.E., Genomics-assisted breeding for crop improvement (2005) Trends Plant Sci, 10, pp. 621-630Menossi, M., Silva-Filho, M.C., Vincentz, M., Van-Sluys, M.-A., Souza, G.M., Sugarcane functional genomics: gene discovery for agronomic trait development (2008) Int J Plant Genomics, 2008, p. 458732. , doi:10.1155/2008/458732Palhares, A.C., Rodrigues-Morais, T.B., Van Sluys, M.-A., Domingues, D.S., Maccheroni, W., Jordão, H., Souza, A.P., Vieira, M.L.C., A novel linkage map of sugarcane with evidence for clustering of retrotransposon-based markers (2012) BMC Genet, 13, p. 51Andersen, J.R., Lübberstedt, T., Functional markers in plants (2003) Trends Plant Sci, 8, pp. 554-560Kalendar, R., Flavell, A.J., Ellis, T.H.N., Sjakste, T., Moisy, C., Schulman, A., Analysis of plant diversity with retrotransposon-based molecular markers (2011) Heredity (Edinb), 106, pp. 520-530PGML BACMan On The Web: Grasses http://www.plantgenome.uga.edu/bacman/BACManwww.phpRice Genome Annotation Project http://rice.plantbiology.msu.edu/Bowers, J.E., Arias, M.A., Asher, R., Avise, J.A., Ball, R.T., Brewer, G.A., Buss, R.W., Soderlund, C.A., Comparative physical mapping links conservation of microsynteny to chromosome structure and recombination in grasses (2005) Proc Natl Acad Sci U S A, 102, pp. 13206-13211Adam-Blondon, A.-F., Bernole, A., Faes, G., Lamoureux, D., Pateyron, S., Grando, M.S., Caboche, M., Chalhoub, B., Construction and characterization of BAC libraries from major grapevine cultivars (2005) Theor Appl Genet, 110, pp. 1363-1371Manetti, M.E., Rossi, M., Cruz, G.M.Q., Saccaro, N.L., Nakabashi, M., Altebarmakian, V., Rodier-Goud, M., Van Sluys, M.A., Mutator system derivatives isolated from sugarcane genome sequence (2012) Trop Plant Biol, 5, pp. 233-243Phrap http://www.phrap.org/RepeatMasker http://www.repeatmasker.org/Jurka, J., Kapitonov, V.V., Pavlicek, A., Klonowski, P., Kohany, O., Repbase update, a database of eukaryotic repetitive elements (2005) Cytogenet Genome Res, 110, pp. 462-467Han, Y., Wessler, S.R., MITE-Hunter: a program for discovering miniature inverted-repeat transposable elements from genomic sequences (2010) Nucleic Acids Res, 38 (22), pp. e199. , doi: 10.1093/nar/gkq862. Epub 2010 Sep 29Frickey, T., Lupas, A., CLANS: a Java application for visualizing protein families based on pairwise similarity (2004) Bioinformatics, 20, pp. 3702-3704Han, Y., Qin, S., Wessler, S.R., Comparison of class 2 transposable elements at superfamily resolution reveals conserved and distinct features in cereal grass genomes (2013) BMC Genomics, 14, p. 71Keller, O., Kollmar, M., Stanke, M., Waack, S., A novel hybrid gene prediction method employing protein multiple sequence alignments (2011) Bioinformatics, 27, pp. 757-763Majoros, W.H., Pertea, M., Salzberg, S.L., TigrScan and GlimmerHMM: two open source ab initio eukaryotic gene-finders (2004) Bioinformatics, 20, pp. 2878-2879Haas, B.J., Delcher, A.L., Mount, S.M., Wortman, J.R., Smith, R.K., Hannick, L.I., Maiti, R., White, O., Improving the Arabidopsis genome annotation using maximal transcript alignment assemblies (2003) Nucleic Acids Res, 31, pp. 5654-5666Haas, B.J., Salzberg, S.L., Zhu, W., Pertea, M., Allen, J.E., Orvis, J., White, O., Wortman, J.R., Automated eukaryotic gene structure annotation using EVidenceModeler and the Program to assemble spliced alignments (2008) Genome Biol, 9, pp. R7Petersen, T.N., Brunak, S., von Heijne, G., Nielsen, H., SignalP 4.0: discriminating signal peptides from transmembrane regions (2011) Nat Methods, 8, pp. 785-786TMHMM Server v. 2.0 http://www.cbs.dtu.dk/services/TMHMM-2.0/Rutherford, K., Parkhill, J., Crook, J., Horsnell, T., Rice, P., Rajandream, M.A., Barrell, B., Artemis: sequence visualization and annotation (2000) Bioinformatics, 16, pp. 944-945UniProt http://www.uniprot.org/InterPro: Protein sequence analysis and classification http://www.ebi.ac.uk/interpro/Conesa, A., Götz, S., Blast2GO: a comprehensive suite for functional analysis in plant genomics (2008) Int J Plant Genomics, 2008, pp. 1-12SUCEST-FUN Project http://sucest-fun.org/MG-RAST: metagenomics analysis server http://metagenomics.anl.gov/KAAS - KEGG automatic annotation server http://www.genome.jp/kegg/kaas/Tamura, K., Peterson, D., Peterson, N., Stecher, G., Nei, M., Kumar, S., MEGA5: molecular evolutionary genetics analysis using maximum likelihood, evolutionary distance, and maximum parsimony methods (2011) Mol Biol Evol, 28, pp. 2731-2739Lyons, E., Freeling, M., How to usefully compare homologous plant genes and chromosomes as DNA sequences (2008) Plant J, 53, pp. 661-673Hall, T.A., BioEdit: a user-friendly biological sequence alignment editor and analysis program for Windows 95/98/NT (1999) Nucleic Acids Symp Ser, 41, pp. 95-98Geneious - Homepage http://www.geneious.com/Heslop-Harrison, P., Schwarzacher, T., (2000) Practical In Situ Hybridization, , Oxford, UK: BIOS Scientific Publishers LtdAljanabi, S., Forget, L., Dookun, A., An improved and rapid protocol for the isolation of polysaccharide-and polyphenol-free sugarcane DNA (1999) Plant Mol Biol Report, 17, pp. 1-8Maq: Mapping and assembly with qualities http://maq.sourceforge.net/SeqMonk http://www.bioinformatics.babraham.ac.uk/projects/seqmonk/Gasic, K., Hernandez, A., Korban, S.S., RNA extraction from different apple tissues rich in polyphenols and polysaccharides for cDNA (2004) Plant Mol Biol Report, 22 (DECEMBER), pp. 437a-437gLi, H., Durbin, R., Fast and accurate short read alignment with Burrows-Wheeler transform (2009) Bioinformatics, 25, pp. 1754-1760Li, H., Handsaker, B., Wysoker, A., Fennell, T., Ruan, J., Homer, N., Marth, G., Durbin, R., The sequence Alignment/Map format and SAMtools (2009) Bioinformatics, 25, pp. 2078-2079Thompson, J.D., Higgins, D.G., Gibson, T.J., CLUSTAL W: improving the sensitivity of progressive multiple sequence alignment through sequence weighting, position-specific gap penalties and weight matrix choice (1994) Nucleic Acids Res, 22, pp. 4673-4680Bandelt, H.J., Forster, P., Röhl, A., Median-joining networks for inferring intraspecific phylogenies (1999) Mol Biol Evol, 16, pp. 37-48Paterson, A.H., Freeling, M., Tang, H., Wang, X., Insights from the comparison of plant genome sequences (2010) Annu Rev Plant Biol, 61, pp. 349-37

Estudo de itinerarios de desenvolvimento: contribuiçao metodologica para a analise das dinamicas agrarias

This paper presents a methodological proposal for study and analysis of the local development processes, aiming at assisting the institutions of support to rural development in their planning. This approach, based on the concept of studies of development itineraries, relies on the working up of methods of analysis of the mechanisms and consequences of the technical, economical and social transformations of the local agrarian situations, integrating the historical dimension of this process. Besides the immediate utilization for the diagnosis of the local agrarian systems, the studies of development itineraries offer possibilities for their utilization in other more extensive levels and scales. (Résumé d'auteur