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Mostrando ítems 21-40 de 55
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Isolation and characterization of the tissue and development-specific potato snakin-1 promoter inducible by temperature and wounding
Almasia, Natalia Ines; Nahirñak, Vanesa; Hopp, Horacio Esteban; Vazquez Rovere, Cecilia (Pontificia Universidad Catolica de Valparaiso, 2010-09)Snakin-1 (StSN1) is a broad-spectrum antimicrobial peptide isolated from Solanum tuberosum. Homologous proteins have been identified in a wide range of species but there is no apparent consensus in the roles they play. A ... -
Main and epistatic QTL analyses for Sclerotinia Head Rot resistance in sunflower
Zubrzycki, Jeremias Enrique; Maringolo, Carla Andrea; Filippi, Carla Valeria; Quiroz, Facundo Jose; Nishinakamasu, Veronica; Puebla, Andrea Fabiana; Di Rienzo, Julio Alejandro; Escande, Alberto; Lia, Veronica Viviana; Heinz, Ruth Amelia; Hopp, Horacio Esteban; Cervigni, Gerardo Domingo Lucio; Paniego, Norma Beatriz (PLOS, 2017-12)Sclerotinia Head Rot (SHR), a disease caused by Sclerotinia sclerotiorum, is one of the most limiting factors in sunflower production. In this study, we identified genomic loci associated with resistance to SHR to support ... -
Mal de Río Cuarto virus (MRCV) genomic segment S3 codes for the major core capsid protein
Distefano, Ana Julia; Maldonado, Sara Beatriz; Hopp, Horacio Esteban; Del Vas, Mariana (Springer, 2009-06)Mal de Río Cuarto virus (MRCV) is a newly described species of the genus Fijivirus, family Reoviridae. Compared with other plant-infecting genus of the family, the function and localization of MRCV and other Fijivirus ... -
Midgut Genes Knockdown by Oral dsRNA Administration Produces a Lethal Effect on Cotton Boll Weevil
Salvador, Ricardo; Niz, José María; Nakaya, Pablo Angel; Pedarros, Analía Soledad; Hopp, Horacio Esteban (Springer, 2021-02)The “cotton boll weevil” (Anthonomus grandis Boheman) is a key pest in America whose larval stage develops within the cotton flower bud. During its development, the larva uses the flower bud as food and as a shelter from ... -
Morphological and genetic diversity of maize landraces along an altitudinal gradient in the Southern Andes
Rivas, Juan Gabriel; Gutierrez, Ángela Verónica; Defacio, Raquel Alicia; Schimpf, Jorge; Vicario, Ana L.; Hopp, Horacio Esteban; Paniego, Norma Beatriz; Lia, Veronica Viviana (BioRxiv, 2022-07)Maize (Zea mays ssp. mays) is a major cereal crop worldwide and is traditionally or commercially cultivated almost all over the Americas. The northwestern region of Argentina (NWA) constitutes one of the main diversity ... -
New validated eucalyptus SSR markers located in candidate genes involved in growth and plant development
Acuña, Cintia Vanesa; Rivas, Juan Gabriel; Aguirre, Natalia Cristina; Villalba, Pamela Victoria; Martinez, Maria Carolina; Garcia, Martin Nahuel; Hopp, Horacio Esteban; Marcucci Poltri, Susana Noemi (Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (España), 2020)Aim of study: To validate and characterize new microsatellites or Simple Sequence Repeats (SSR) markers, located within genomic transcribed sequences related to growth and plant developmental traits, in Eucalyptus ... -
Nuevas estrategias para la transformación y expresión de genes de interés en girasol
Radonic, Laura Mabel (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 2011-09)El girasol es una especie de la familia Asteraceae (Compositae) de gran importancia económica, considerada hasta hace una década recalcitrante al cultivo in vitro y la transformación genética. En un trabajo previo (Radonic, ... -
On-field phenotypic evaluation of sunflower populations for broad-spectrum resistance to Verticillium leaf mottle and wilt
Montecchia, Juan Francisco; Fass, Monica Irina; Cerrudo, Ignacio; Quiroz, Facundo Jose; Nicosia, Salvador Maria; Maringolo, Carla Andrea; Di Rienzo, Julio A.; Troglia, Carolina Beatriz; Hopp, Horacio Esteban; Escande, Alberto; Gonzalez, Julio Horacio; Alvarez, Daniel; Heinz, Ruth Amelia; Lia, Veronica Viviana; Paniego, Norma Beatriz (Springer Nature, 2021-06)Sunflower Verticillium Wilt and Leaf Mottle (SVW), caused by Verticillium dahliae (Kleb.; Vd), is a soil-borne disease affecting sunflower worldwide. A single dominant locus, known as V1, was formerly effective in controlling ... -
Optimizing ddRADseq in non-model species: a case study in Eucalyptus dunnii maiden
Aguirre, Natalia Cristina; Filippi, Carla Valeria; Zaina, Giusi; Rivas, Juan Gabriel; Acuña, Cintia Vanesa; Villalba, Pamela Victoria; Garcia, Martin Nahuel; Gonzalez, Sergio; Rivarola, Maximo Lisandro; Martinez, Maria Carolina; Puebla, Andrea Fabiana; Morgante, Michele; Hopp, Horacio Esteban; Paniego, Norma Beatriz; Marcucci Poltri, Susana Noemi (MDPI, 2019-08)Restriction site-associated DNA sequencing (RADseq) and its derived protocols, such as double digest RADseq (ddRADseq), offer a flexible and highly cost-effective strategy for efficient plant genome sampling. This has ... -
The overexpression of antifungal genes enhances resistance to rhizoctonia solani in transgenic potato plants without affecting arbuscular mycorrhizal symbiosis
Fernandez Bidondo, Laura; Almasia, Natalia Ines; Bazzini, Ariel Alejandro; Colombo, Roxana; Hopp, Horacio Esteban; Vazquez Rovere, Cecilia; Godeas, Alicia (Elsevier, 2019-10)The biological control of fungal diseases through the use of genetically modified (GM) plants could decrease the input of chemical pesticides. To overcome possible losses in potato (Solanum tuberosum) yield because of ... -
Overexpression of snakin-1 gene enhances resistance to Rhizoctonia solani and Erwinia carotovora in transgenic potato plants
Almasia, Natalia Ines; Bazzini, Ariel Alejandro; Hopp, Horacio Esteban; Vazquez Rovere, Cecilia (Wiley-Blackwell, 2008-05)Snakin‐1 (SN1), a cysteine‐rich peptide with broad‐spectrum antimicrobial activity in vitro, was evaluated for its ability to confer resistance to pathogens in transgenic potatoes. Genetic variants of this gene were cloned ... -
P0 protein of cotton leafroll dwarf virus-atypical isolate is a weak RNA silencing suppressor and the avirulence determinant that breaks the cotton Cbd gene-based resistance
Agrofoglio, Yamila Carla; Delfosse, Veronica Cecilia; Casse, Maria Florencia; Hopp, Horacio Esteban; Bonacic Kresic, Iván; Ziegler-Graff, Véronique; Distefano, Ana Julia (Wiley, 2019-08)Cotton blue disease (CBD) is the most important disease present in cotton crops in South America and cotton leafroll dwarf virus (CLRDV) is the causal agent. The disease has been controlled by sowing cotton varieties ... -
Peculiarities of the Transformation of Asteraceae Family Species: The Cases of Sunflower and Lettuce
Darqui, Flavia Soledad; Radonic, Laura Mabel; Beracochea, Valeria Cecilia; Hopp, Horacio Esteban; Lopez Bilbao, Marisa Gisela (Frontiers Publishing, 2021-11)The Asteraceae family is the largest and most diversified family of the Angiosperms, characterized by the presence of numerous clustered inflorescences, which have the appearance of a single compound flower. It is estimated ... -
Phenotyping sunflower genetic resources for Sclerotinia head rot response: assessing variability for disease resistance breeding
Filippi, Carla Valeria; Zubrzycki, Jeremias Enrique; Di Rienzo, Julio A.; Quiroz, Facundo Jose; Fusari, Corina Mariana; Alvarez, Daniel; Maringolo, Carla Andrea; Cordes, Diego Darío; Escande, Alberto; Hopp, Horacio Esteban; Heinz, Ruth Amelia; Lia, Veronica Viviana; Paniego, Norma Beatriz (The American Phytopathological Society, 2017-11)Sclerotinia head rot (SHR) is one of the most serious constraints to sunflower (Helianthus annuus L. var. macrocarpus) production worldwide. Here, we evaluated the response to SHR in a sunflower inbred panel from a large ... -
Plastome genomics in South American maize landraces: chloroplast lineages parallel the geographic structuring of nuclear gene pools
Lopez, Mariana Gabriela; Fass, Monica Irina; Rivas, Juan Gabriel; Carbonell-Caballero, José; Vera, Pablo Alfredo; Puebla, Andrea Fabiana; Defacio, Raquel Alicia; Dopazo, Joaquín; Paniego, Norma Beatriz; Hopp, Horacio Esteban; Lia, Verónica Viviana (Oxford University Press, 2021-03)Background and Aims: The number of plastome sequences has increased exponentially during the last decade. However, there is still little knowledge of the levels and distribution of intraspecific variation. The aims of this ... -
Population genetics structure of glyphosate‐resistant Johnsongrass (Sorghum halepense L. Pers) does not support a single origin of the resistance
Fernandez, Luis German; De Haro, Luis Alejandro; Distefano, Ana Julia; Martinez, Maria Carolina; Lia, Veronica Viviana; Papa, Juan Carlos; Olea, Ignacio; Tosto, Daniela Sandra; Hopp, Horacio Esteban (Wiley, 2013-09)Single sequence repeats (SSR) developed for Sorghum bicolor were used to characterize the genetic distance of 46 different Sorghum halepense (Johnsongrass) accessions from Argentina some of which have evolved toward ... -
Population structure and genetic diversity characterization of a sunflower association mapping population using SSR and SNP markers
Filippi, Carla Valeria; Aguirre, Natalia Cristina; Rivas, Juan Gabriel; Zubrzycki, Jeremias Enrique; Puebla, Andrea Fabiana; Cordes, Diego Darío; Moreno, Maria Valeria; Fusari, Corina Mariana; Alvarez, Daniel; Heinz, Ruth Amelia; Hopp, Horacio Esteban; Paniego, Norma Beatriz; Lia, Veronica Viviana (BMC, 2015-02)Background: Argentina has a long tradition of sunflower breeding, and its germplasm is a valuable genetic resource worldwide. However, knowledge of the genetic constitution and variability levels of the Argentinean germplasm ... -
Potato snakin-1 gene enhances tolerance to Rhizoctonia solani and Sclerotinia sclerotiorum in transgenic lettuce plants
Darqui, Flavia Soledad; Radonic, Laura Mabel; Trotz, Paulina M.; Lopez, Nilda Ester; Vazquez Rovere, Cecilia; Hopp, Horacio Esteban; Lopez Bilbao, Marisa Gisela (Elsevier, 2018-10)Snakin-1 is a cysteine-rich antimicrobial peptide (AMP) isolated from potato tubers, with broad-spectrum activity. It belongs to the Snakin/GASA family, whose members have been studied because of their diverse roles ... -
Potato Snakin-1 Gene Silencing Affects Cell Division, Primary Metabolism, and Cell Wall Composition
Nahirñak, Vanesa; Almasia, Natalia Ines; Fernandez, Paula Virginia; Hopp, Horacio Esteban; Estevez, Jose Manuel; Carrari, Fernando; Vazquez Rovere, Cecilia (American Society of Plant Biologists, 2012-01)Snakin-1 (SN1) is an antimicrobial cysteine-rich peptide isolated from potato (Solanum tuberosum) that was classified as a member of the Snakin/Gibberellic Acid Stimulated in Arabidopsis protein family. In this work, a ... -
Potato snakin‑1: an antimicrobial player of the trade‑off between host defense and development
Almasia, Natalia Ines; Nahirñak, Vanesa; Hopp, Horacio Esteban; Vazquez Rovere, Cecilia (Springer, 2020-07)Snakin-1 (SN1) from potato is a cysteine-rich antimicrobial peptide with high evolutionary conservation. It has 63 amino acid residues, 12 of which are cysteines capable of forming six disulfide bonds. SN1 localizes in the ...