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Topic: Medicago truncatula

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	Medicago truncatula - Wikipedia, the free encyclopedia
		Medicago truncatula is a small forage legume that has been chosen as a model organism for legume biology.
		It has a small diploid genome, is self-fertile, has a rapid generation time and prolific seed production, it is also amenable to genetic transformation.
		truncatula can from symbiosis with nitrogen-fixing rhizobia Sinorhizobium meliloti and arbuscular mycorrhizal fungi.
	en.wikipedia.org /wiki/Medicago_truncatula (108 words)

	Sequencing Medicago truncatula at the University of Oklahoma
		Sequencing Medicago truncatula at the University of Oklahoma
		The initial goal of the Medicago truncatula genome project is to generate approximately 1-fold whole genome shotgun sequence data from a double-stranded pUC-based genomic library and obtain target shotgun clones for additional primer walking-based sequencing after analysis vs the ~100,000 Medicago truncatula ESTs and the genome of Arabidopsis thaliana.
		Medicago truncatula BAC-end sequence database at Texas A&M University
	www.genome.ou.edu /medicago.html (1186 words)

	UrMeLDB (Site not responding. Last check: 2007-11-03)
		Medicago truncatula serves as a model organism for the legumes plant family.
		Medicago is a major model organism for plant biology...
		Medicago truncatula has a comparatively small genome with 500-550Mbp total and 200-250Mbp to be sequenced in gene-rich euchromatic regions.
	mips.gsf.de /proj/plant/jsf/medi/index.jsp (210 words)

	Center for Medicago Genomics Research
		Medicago truncatula (commonly known as "barrel medic" because of the shape of its seed pods) is a forage legume commonly grown in Australia.
		truncatula has been chosen as a model species for genomic studies in view of its small genome, fast generation time (from seed-to-seed), and high transformation efficiency.
		A Center for Medicago Genomics Research was established at The Samuel Roberts Noble Foundation in the fall of 1999.
	www.noble.org /medicago (616 words)

	ICOM II Abstract: Evidence that hypernodulating mutants of Medicago truncatula have an increased capacity of ... (Site not responding. Last check: 2007-11-03)
		ICOM II Abstract: Evidence that hypernodulating mutants of Medicago truncatula have an increased capacity of mycorrhizal infection.
		Evidence that hypernodulating mutants of Medicago truncatula have an increased capacity of mycorrhizal infection.
		truncatula supernodulating mutants, which are characterised by increased nodule numbers and nitrate tolerance, have been obtained by gamma irradiation or ethyl methane sulfonate treatment.
	www-icom2.slu.se /ABSTRACTS/Morandi.html (244 words)

	MOLECULAR GENETICS OF A MODEL-PLANT : MEDICAGO TRUNCATULA
		Medicago truncatula is an annual forage, diploid, selfing plant of low DNA content and with which transgenic plants can be routinely obtained.
		This Mediterranean forage legume is used as a model-plant instead of alfalfa (Medicago sativa) to combine analyses of the genetic diversity and studies of molecular biology.
		truncatula is nodulated by well-known Rhizobium meliloti strains and is of good agronomical value for Mediterranean regions where they are used to improve the soil structure, increase soil nitrogen and as a source of winter forage.
	www.naaic.org /Publications/1998Proc/abstracts/Prosperi2.html (506 words)

	Medicago trunculata as a model legume
		Medicago truncatula has been adopted as a model plant for the study of legume biology.
		Furthermore, the bacterial symbiont of Medicago truncatula, Sinorhizobium meliloti, has been studied for many years, and the genome of this organism has been sequenced.
		Medicago truncatula is now being studied in a large number of laboratories across the globe and the genetic and genomic tools are rapidly expanding.
	www.jic.bbsrc.ac.uk /STAFF/giles-oldroyd/medicago/medicago.htm (138 words)

	Teagasc - (II) Developing structural and functional genomics tools, enabling technologies and risk assessment paradigms ...
		Medicago truncatula is fast becoming the model plant of choice for legume biology.
		It is a diploid plant with autogamous fertilisation, a relatively small genome (approx 500Mbp) and a rapid reproductive cycle, and as such, satisfies all the important prerequisites of a model species for genome-based studies (Thoquet et al., 2002).
		truncatula project (http://medicago.vbi.vt.edu/) is incorporating DNA microarrays into a complete functional analysis system whereby they propose to compare data at all levels of gene expression.
	www.teagasc.ie /oakpark/medicagotruncatula.htm (1878 words)

	International Conference on Legume Genomics and Genetics: Translation to Crop Improvement (Site not responding. Last check: 2007-11-03)
		We are using Medicago truncatula as a model for studying disease resistance, with the goal of transferring the information and biological resources generated for functional analysis of host-pathogen interactions in chickpea (Cicer arietinum).
		Abstract: Medicago truncatula, a diploid (n=8) species with a relatively small genome, is a convenient model system to study rhizobium-mediated nitrogen fixation in legumes.
		Medicago truncatula mutants defective in rhizobial infections are facilitating the dissection of molecular mechanisms in this symbiotic plant-microbe interaction.
	www.agro.agri.umn.edu /iclgg/abstracte.htm (3758 words)

	Medicago truncatula functional genomics and bioinformatics (Site not responding. Last check: 2007-11-03)
		This is the main information repository for the NSF-funded project entitled "An integrated approach to functional genomics and bioinformatics in a model legume".
		Medicago truncatula is a forage legume plant, closely related to Alfalfa.
		This project studies how Medicago truncatula cells respond to fungal infections and ultra-violet light in great molecular detail using three major technologies of functional genomics: microarrays, proteomics, and metabolomics.
	medicago.vbi.vt.edu (178 words)

	PAG-X: PROTEOMICS AND METABOLOMICS OF Medicago truncatula (Site not responding. Last check: 2007-11-03)
		Medicago truncatula, a close relative of alfalfa, has been chosen as a model legume because of its prolific nature, small diploid genome (~5x108 bp), self-fertilization, ease of genetic transformation, and rapid generation time.
		Medicago truncatula has been targeted in a functional genomics project to better understand the biological processes associated with legumes and their interaction with the environment.
		Analytical and biological variance associated with a 2-DE proteomic approach for Medicago truncatula were determined and serve as a baseline for comparative and differential protein profiling.
	www.intl-pag.org /pag/10/abstracts/PAGX_P475.html (263 words)

	BioMed Central \| Full text \| The molecular genetic linkage map of the model legume Medicago truncatula: an essential ...
		truncatula map and the derived F3 populations, we were able to map the Mtsym6 symbiotic gene on linkage group 8 and the SPC gene, responsible for the direction of pod coiling, on linkage group 7.
		The alfalfa relative, Medicago truncatula, was originally proposed as a model plant for legume biology because it possesses a number of interesting characteristics for both molecular and classical genetics [ 4-6 ].
		truncatula chromosome length differs by a factor of 1.5 (3 to 4.5 μ m) or 2.3 (29 to 68 μ m) for metaphasic [ 50 ] or pachytene [ 51 ] chromosomes respectively.
	www.biomedcentral.com /1471-2229/2/1 (7485 words)

	medicagotruncatula (Site not responding. Last check: 2007-11-03)
		The Medicago truncatula MtAnn1 gene encoding an annexin is induced by nod factors and during the symbiotic interaction with Rhizobium meliloti.
		A novel gene whose expression in Medicago truncatula roots is suppressed in response to colonization by vesicular-arbuscular mycorrhizal (VAM) fungi and to phosphate nutrition.
		Transient induction of a peroxidase gene in Medicago truncatula precedes infection by Rhizobium meliloti.
	www.newcrops.uq.edu.au /listing/medicagotruncatula.htm (5670 words)

	Poster abstract (Site not responding. Last check: 2007-11-03)
		truncatula cell cultures were initiated from root tissue and elicited with methyl jasmonate or yeast extract.
		Four-week-old M. truncatula leaf tissue was challenged with biotic elicitors, sequentially extracted with acetone and acetone:methanol (1:1), and metabolite profiles recorded.
		HPLC/UV/MS was used to quantitatively and qualitatively evaluate the spatial distribution of 31 saponins in M. truncatula aerial and subterranean tissues including seed, seedpod, leaves, stems, and roots.
	metabolomics-2003.mpg.de /abstracts/p38.html (231 words)

	A Sequence-Based Genetic Map of Medicago truncatula and Comparison of Marker Colinearity with M. sativa -- Choi et al. ...
		A Sequence-Based Genetic Map of Medicago truncatula and Comparison of Marker Colinearity with M. sativa -- Choi et al.
		truncatula that spans 1125 cM and is composed of 289,
		, 1995 Transient induction of a peroxidase gene in Medicago truncatula precedes infection by Rhizobium meliloti.
	www.genetics.org /cgi/content/full/166/3/1463 (5828 words)

	NOBLE FOUNDATION, NCGR RELEASE FIRST ROUND OF MEDICAGO TRUNCATULA ESTs
		truncatula research community, including National Science Foundation projects and international groups such as those in France, will continue to contribute to the overall genomic research of the plant, making it a stronger model system.
		truncatula and its better-known relatives, alfalfa and soybean, are members of the legume family, one of the most important groups of plants.
		truncatula is a particularly good plant for study because, unlike alfalfa, it has a relatively small genome and is amenable to efficient genetic and molecular analysis.
	www.noble.org /Press_Release/medicago/ncgr-data.htm (518 words)

	Groupe Adam KONDOROSI (Site not responding. Last check: 2007-11-03)
		The endosymbiosis-induced genes ENOD40 and CCS52a are involved in endoparasitic-nematode interactions in Medicago truncatula.
		Staehelin, C., Charon, C., Boller, T., Crespi, M. and Kondorosi, A. Medicago truncatula plants overexpressing the early nodulin gene enod40 exhibit accelerated mycorrhizal colonization and enhanced formation of arbuscules.
		Kereszt, A., Slaska-Kiss K., Putnoky, P., Banfalvi, Z. and Kondorosi, A. (1995) The cycHJKL genes of Rhizobium meliloti involved in cytochrome c biogenesis are required for "respiratory" nitrate reduction ex planta and for nitrogen fixation during symbiosis.
	www.isv.cnrs-gif.fr /ak/publiart.html (4295 words)

	Scientists Develop New Cloning Technique That Dramatically Shortens The Search For Genes (Site not responding. Last check: 2007-11-03)
		She and her colleagues used the new cloning technique to isolate and identify a gene in the DNA of Medicago truncatula, or barrel medic — a member of the legume family that is closely related to alfalfa, beans and peas.
		Medicago DNA contains thousands of genes, and using traditional methods to figure out what each one does is a time-consuming process.
		Researchers have discovered that Medicago and other legumes allow bacteria to invade their roots and take up residence in tumor-like organs called nodules.
	www.sciencedaily.com /releases/2004/03/040331002910.htm (1531 words)

	Medicago truncatula
		UK cropnet, host of a variety of plant databases
		Medicago truncatula : an ecotype lacking dark leaf pigmentation.
		Comparative map of Arabidopsis, Medicago, and Glycine (soybean) chromosomal region.
	www.medicago.org (28 words)

	Medicago truncatula Genome Project
		This involves a download of all Medicago BACs in GenBank (both complete and in progress) followed by clustering and assembly to form sequence-based BAC contigs and singletons that are then processed through an FGENESH pipeline to produce Temporary Gene Predictions.
		For de novo repeat detection, all Medicago truncatula BACS in Genbank arebeing run through RepeatScout on a regular basis and the results made available on our ftp site.
		RepeatScout is a de novo identification of repeat families via extension of consensus seeds developed by Price A.L.,Jones N.C and Pevzner P.A. Medicago truncatula repeat database constructed by similarity to known repeat elements can be found as part of the TIGR Repeat Databases.
	www.tigr.org /tdb/e2k1/mta1 (576 words)

	The Scientist :: Transcription factors link rhizobia, legumes, Jun. 20, 2005 (Site not responding. Last check: 2007-11-03)
		Previous studies had demonstrated that nsp1 and nsp2 mutants were unable to produce the burst of gene expression that usually follows Nod factor stimulation and calcium spiking in epidermal root cells.
		According to the reports, the findings were consistent with earlier evidence that related proteins in the GRAS family are known to regulate transcription in other plants and contain structural elements–including leucine-rich regions and homopolymeric stretches in the N-terminal region–often found in transcriptional regulators.
		G.E. Oldroyd, S.R. Long, "Identification and characterization of nodulation-signaling pathway 2, a gene of Medicago truncatula involved in Nod actor signaling," Plant Physiol, 131(3):1027–32, 2003.
	www.biomedcentral.com /news/20050620/02 (888 words)

	Integrated structural, functional and comparative genomics of the model legume Medicago truncatula
		The widely-used model plant Arabidopsis thaliana is unable to establish root endosymbioses and is thus not the most appropriate system for the study of this important aspect of plant biology.
		Therefore, in the current project Medicago truncatula has been chosen as a model legume to study the symbiotic genetic programmes of plants and facilitate the genetics and breeding of important legume crops such as pea, faba bean, alfalfa and clover.
		We propose a functional genomics project to identify most of the plant genes whose expression is modified in the course of symbiotic and pathogenic interactions, as well as other genes of agricultural importance which cannot be easily studied with A.
	medicago.toulouse.inra.fr /EU (209 words)

	Nod factor-treated Medicago truncatula roots and seeds show an increased number of nodules when inoculated with a ...
		Nod factor-treated Medicago truncatula roots and seeds show an increased number of nodules when inoculated with a limiting population of Sinorhizobium meliloti* -- Macchiavelli and Brelles-Mariño, 10.1093/jxb/erh261 -- Journal of Experimental Botany
		Nod factor-treated Medicago truncatula roots and seeds show an increased number of nodules when inoculated with a limiting population of Sinorhizobium meliloti
		Medicago truncatula is a model legume plant that interacts
	jxb.oupjournals.org /cgi/content/short/erh261v1 (237 words)

	Génétique et génomique de Médicago truncatula-LIPM (Site not responding. Last check: 2007-11-03)
		The objective of our group is to exploit the natural variations existing within the model legume Medicago truncatula populations in order to identify and clone genes and QTLs of interest.
		JM ANE, J LEVY, P. T HUGUET AND J DENARIE (2002) Genetic and cytogenetic mapping of DMI1, DMI2 and DMI3 genes of Medicago truncatula involved in Nod factor transduction, nodulation and mycorrhization.
		EU Copernicus "Prevention of land degradation in the Aral Sea region by increasing tolerance of symbiotic nitrogen fixation to salinity" (Co-ordinator: M.Bazzicalupo, Italie).
	capoul.toulouse.inra.fr /centre/lipm/eng/interactions_symbiotiques/th_equipe.php (536 words)

	PAG-XIII (P425) Hypersyntenic Relationships Between The Soybean, Medicago truncatula, And Arabidopsis thaliana Genomes ...
		Establishing the extent and details of syntenic relationships within legumes is an important step in transferring knowledge from model legumes currently being sequenced to agronomically important crops that are important sources of protein, fixed nitrogen, and health-promoting compounds.
		Current sequencing of the Medicago truncatula genome enables Mb-scale microsyntenic comparisons among legumes.
		truncatula regions allows us to explore the evolution of genomic regions in the context of ancient genome duplication and speciation events.
	www.intl-pag.org /13/abstracts/PAG13_P425.html (346 words)

	Expression of the Plastid-Located Glutamine Synthetase of Medicago truncatula. Accumulation of the Precursor in Root ...
		Expression of the Plastid-Located Glutamine Synthetase of Medicago truncatula.
		The legume Medicago truncatula is being extensively used for studies on symbioses due to its small genome and ease of manipulation,
		Carvalho H, Sunkel C, Salema R, Cullimore JV (1997) Heteromeric assembly of the cytosolic glutamine synthetase polypeptides of Medicago truncatula : complementation of a gln A Escherichia coli mutant with a plant domain-swapped enzyme.
	www.plantphysiol.org /cgi/content/full/132/1/390 (6066 words)

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