Search Results - (Author, Cooperation:D. Zamir)
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1Staff View
Publication Date: 2014-09-06Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Caffeine/*genetics ; Coffea/*genetics ; *Evolution, Molecular ; *Genome, Plant ; Methyltransferases/*physiology ; Plant Proteins/*physiologyPublished by: -
2S. McCouch ; G. J. Baute ; J. Bradeen ; P. Bramel ; P. K. Bretting ; E. Buckler ; J. M. Burke ; D. Charest ; S. Cloutier ; G. Cole ; H. Dempewolf ; M. Dingkuhn ; C. Feuillet ; P. Gepts ; D. Grattapaglia ; L. Guarino ; S. Jackson ; S. Knapp ; P. Langridge ; A. Lawton-Rauh ; Q. Lijua ; C. Lusty ; T. Michael ; S. Myles ; K. Naito ; R. L. Nelson ; R. Pontarollo ; C. M. Richards ; L. Rieseberg ; J. Ross-Ibarra ; S. Rounsley ; R. S. Hamilton ; U. Schurr ; N. Stein ; N. Tomooka ; E. van der Knaap ; D. van Tassel ; J. Toll ; J. Valls ; R. K. Varshney ; J. Ward ; R. Waugh ; P. Wenzl ; D. Zamir
Nature Publishing Group (NPG)
Published 2013Staff ViewPublication Date: 2013-07-05Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Acclimatization/genetics ; Agriculture/economics/*methods/*trends ; Biodiversity ; Biological Specimen Banks ; Breeding ; Crops, Agricultural/genetics ; Food Supply/*statistics & numerical data ; Genes, Plant ; Humans ; Phenotype ; Seeds/geneticsPublished by: -
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ISSN: 0022-3697Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Chemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
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ISSN: 0022-3697Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Chemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
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ISSN: 0022-3697Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Chemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
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ISSN: 0022-1139Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Chemistry and PharmacologyType of Medium: Electronic ResourceURL: -
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ISSN: 0038-1098Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: PhysicsType of Medium: Electronic ResourceURL: -
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ISSN: 0038-1098Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: PhysicsType of Medium: Electronic ResourceURL: -
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ISSN: 0038-1098Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: PhysicsType of Medium: Electronic ResourceURL: -
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ISSN: 0038-1098Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: PhysicsType of Medium: Electronic ResourceURL: -
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ISSN: 0038-1098Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: PhysicsType of Medium: Electronic ResourceURL: -
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ISSN: 0009-2614Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Chemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
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ISSN: 0304-4211Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyType of Medium: Electronic ResourceURL: -
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ISSN: 0304-4211Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyType of Medium: Electronic ResourceURL: -
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ISSN: 1432-8798Source: Springer Online Journal Archives 1860-2000Topics: MedicineNotes: Summary Symptom development in tomato plants following whitefly-mediated inoculation with tomato yellow leaf curl virus (TYLCV) was related to the occurrence of viral DNA using a specific DNA probe. Although disease symptoms were first observed 15 days post-inoculation, viral DNA could be detected 7 days earlier. TYLCV-DNA concentrations reached an optimum 4 days before symptoms appeared. The highest concentrations of TYLCV-DNA were found in rapidly growing tissues (shoot apex, young leaves, roots) and in the stems; the lowest concentrations were found in the older leaves and cotyledons. Plants were also inoculated on specific sites. Young leaves and apices were the best targets for virus inoculation. In these tissues, the viral DNA replicated at the site of inoculation and was transported first to the roots, then to the shoot apex and to the neighboring leaves and the flowers. Inoculation through the oldest leaves was inefficient.Type of Medium: Electronic ResourceURL: -
16Fulton, T. M. ; Grandillo, S. ; Beck-Bunn, T. ; Fridman, E. ; Frampton, A. ; Lopez, J. ; Petiard, V. ; Uhlig, J. ; Zamir, D. ; Tanksley, S. D.
Springer
Published 2000Staff ViewISSN: 1432-2242Keywords: Key words Molecular breeding ; Germplasm utilization ; L. parviflorum ; Quantitative trait loci ; Tomato ; IntrogressionSource: Springer Online Journal Archives 1860-2000Topics: BiologyNotes: Abstract Lycopersicon parviflorum is a sexually compatible, wild tomato species which has been largely unutilized in tomato breeding. The Advanced Backcross QTL (AB-QTL) strategy was used to explore this genome for QTLs affecting traits of agronomic importance in an interspecific cross between a tomato elite processing inbred, Lycopersicon esculentum E6203, and the wild species L. parviflorum (LA2133). A total of 170 BC2 plants were genotyped by means of 133 genetic markers (131 RFLPs; one PCR-based marker, I-2, and one morphological marker, u, uniform ripening). Approximately 170 BC3 families were grown in replicated field trials, in California, Spain and Israel, and were scored for 30 horticultural traits. Significant putative QTLs were identified for all traits, for a total of 199 QTLs, ranging from 1 to 19 QTLs detected for each trait. For 19 (70%) traits (excluding traits for which effects of either direction are not necessarily favourable or unfavourable) at least one QTL was identified for which the L. parviflorum allele was associated with an agronomically favourable effect, despite the overall inferior phenotype of the wild species.Type of Medium: Electronic ResourceURL: -
17High-resolution linkage analysis and physical characterization of the EIX-responding locus in tomatoRon, M. ; Kantety, R. ; Martin, G. B. ; Avidan, N. ; Eshed, Y. ; Zamir, D. ; Avni, A.
Springer
Published 2000Staff ViewISSN: 1432-2242Keywords: Key words Map-based cloning ; RFLP ; YACSource: Springer Online Journal Archives 1860-2000Topics: BiologyNotes: Abstract An ethylene-inducing xylanase (EIX) from Tricohoderma viride is a potent elicitor of ethylene biosynthesis, localized cell death and other defense responses in specific cultivars of tobacco (Nicotiana tabacum) and tomato (Lycopersicon esculentum). Wild species of tomato, such as Lycopersicon cheesmanii and Lycopersicon pennellii, do not respond to EIX treatment. The F1 progeny of a L. esculentum×L. cheesmanii and a L. esculentum×L. pennellii cross responded to EIX treatment with an increase in ethylene biosynthesis and the induction of localized cell death. The F2 progeny of the above mentioned crosses segregated 3:1 (responding:non-responding). We mapped the EIX-responding locus (Eix) to the short arm of chromosome 7 using a population of introgression lines (ILs), containing small RFLP-defined chromosome segments of L. pennellii introgressed into L. esculentum. RFLP analysis of 990 F2 plants that segregated for the introgressed segment mapped the Eix locus 0.1 cM and 0.9 cM from the flanking markers TG61 and TG131, respectively. Using the marker TG61 we isolated a yeast artificial chromosome (YAC) clone that carries 300-kb DNA segments derived from the Eix region. By mapping the ends of this YAC clone we show that it spans the Eix locus. Thus, positional cloning of the Eix locus appears feasible.Type of Medium: Electronic ResourceURL: -
18Czosnek, H. ; Kheyr-Pour, A. ; Gronenborn, B. ; Remetz, E. ; Zeidan, M. ; Altman, A. ; Rabinowitch, H. D. ; Vidavsky, S. ; Kedar, N. ; Gafni, Y. ; Zamir, D.
Springer
Published 1993Staff ViewISSN: 1573-5028Keywords: agroinfection ; geminivirus ; leaf disc ; Lycopersicon spp. ; tomato ; TYLCV ; whiteflySource: Springer Online Journal Archives 1860-2000Topics: BiologyNotes: Abstract The leaf disc agroinoculation system was applied to study tomato yellow leaf curl virus (TYLCV) replication in explants from susceptible and resistant tomato genotypes. This system was also evaluated as a potential selection tool in breeding programmes for TYLCV resistance. Leaf discs were incubated with a head-to-tail dimer of the TYLCV genome cloned into the Ti plasmid ofAgrobacterium tumefaciens. In leaf discs from susceptible cultivars (Lycopersicon esculentum) TYLCV single-stranded genomic DNA and its double-stranded DNA forms appeared within 2–5 days after inoculation. Whiteflies (Bemisia tabaci) efficiently transmitted the TYLCV disease to tomato test plants following acquisition feeding on agroinoculated tomato leaf discs. This indicates that infective viral particles have been produced and have reached the phloem cells of the explant where they can be acquired by the insects. Plants regenerated from agroinfected leaf discs of sensitive tomato cultivars exhibited disease symptoms and contained TYLCV DNA concentrations similar to those present in field-infected tomato plants, indicating that TYLCV can move out from the leaf disc into the regenerating plant. Leaf discs from accessions of the wild tomato species immune to whitefly-mediated inoculation,L. chilense LA1969 andL. hirsutum LA1777, did not support TYLCV DNA replication. Leaf discs from plants tolerant to TYLCV issued from breeding programmes behaved like leaf discs from susceptible cultivars.Type of Medium: Electronic ResourceURL: -
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ISSN: 1432-2242Keywords: Isozymes ; Phylogeny ; Cucumis ; Chloroplast DNA ; DendrogramSource: Springer Online Journal Archives 1860-2000Topics: BiologyNotes: Summary An electrophoretic comparison of 29 nuclear-coded enzymes was carried out for 21 Cucumis species, and a phylogeny based on pairwise measurements of the respective genetic distances was computed. This phylogeny was compared to the one based on chlDNA cariation (Perl-Treves and Galun 1985). The two phylogenies were found to share the main dendrogram features; they also agree well with most taxonomic data available on Cucumis. Accordingly, most of the African Cucumis species form a close group (“Anguria group” — “Group A”), which is distant from the melon (C. melo), and from a few other distinct species, all of which are far apart from each other. The cucumber (C. sativus) is the most distant species within the genus. Some specific taxonomic implications as well as some general evolutionary problems related to such a parallel investigation of the nuclear genome and the plastome are evaluated.Type of Medium: Electronic ResourceURL: -
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ISSN: 1432-2242Keywords: Gene duplication ; Phosphoglucose isomerase isozymes ; Persea americana ; BreedingSource: Springer Online Journal Archives 1860-2000Topics: BiologyNotes: Summary Avocado (Persea americana) cultivars were assayed for phosphoglucose isomerase (PGI) isozymes using starch gel electrophoresis. Three PGI genes were identified: one monomorphic locus, Pgi-I, coding for the plastid isozyme and two independently assorting loci, Pgi-2 and Pgi-3, coding for the cytosolic isozymes. The genetic analysis was based on comparisons of PGI zymograms from somatic and pollen tissue and on Mendelian analysis of progeny from selfed trees. The isozymic variability for PGI can be used for cultivar identification and for differentiating between hybrid and selfed progeny in avocado breeding.Type of Medium: Electronic ResourceURL: