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 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
18/09/2014 |
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Actualizado : |
26/11/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
SOTELO, M.; IRISARRI, P.; LORITE, M.J.; CASARETTO, E.; REBUFFO, M.; SANJUAN, J.; MONZA, J. |
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Afiliación : |
MONICA IRENE REBUFFO GFELLER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Diversity of rhizobia nodulating Lotus corniculatus grown in northern and southern regions of Uruguay. |
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Fecha de publicación : |
2012 |
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Fuente / Imprenta : |
Applied Soil Ecology,Volume 49, September 2011, Pages 197-207. |
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ISSN : |
0929-1393 |
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DOI : |
10.1016/j.apsoil.2011.05.005 |
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Idioma : |
Inglés |
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Notas : |
Article history: Article history: Received 6 October 2010/Received in revised form 12 May 2011/Accepted 13 May 2011. |
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Contenido : |
Abstract:
Diversity of rhizobia nodulating Lotus corniculatus grown in geographical regions with different rainfall regimes in northern and southern Uruguay, was estimated using 168 root nodule isolates. ERIC-PCR analysis revealed no correlation between observed fingerprints and the geographical origin of isolates. Despite the commercial strain U510 has been used for decades to inoculate L. corniculatus, none of the isolates corresponded to this strain. Phylogenetic analyses using 16S rRNA and atpD genes, and ITS sequences clustered all the isolates within genus Mesorhizobium. A great majority of the isolates likely belong to the species M. huakuii, as does the commercial strain U510. The remaining isolates were closely related to either M. septentrionale or M. caraganae. Although no M. loti-like bacteria were identified, all isolates carried symbiotic genes closely related to M. loti and other narrow host range Lotus rhizobia. A significant portion of the Uruguayan isolates were as efficient as the reference strain U510 in symbiosis with L. corniculatus. A few of the isolates were also capable of nitrogen fixation in symbiosis with L. uliginosus, albeit with lower efficiency than reference strains. Our results indicate that rhizobia nodulating L. corniculatus in Uruguay are genetically and phenotypically diverse, and that the commercial strain U510 is probably not adapted to survive the Uruguayan edaphoclimatic conditions. |
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Palabras claves : |
16S RRNA; ATPD; ITS; MESORHIZOBIUM; NIFH; NODC. |
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Thesagro : |
LEGUMINOSAS FORRAJERAS; LOTUS CORNICULATUS; LOTUS ULIGINOSUS; RIZOBIOS. |
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Asunto categoría : |
F01 Cultivo |
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Marc : |
LEADER 02504naa a2200349 a 4500
001 1050393
005 2019-11-26
008 2012 bl uuuu u00u1 u #d
022 $a0929-1393
024 7 $a10.1016/j.apsoil.2011.05.005$2DOI
100 1 $aSOTELO, M.
245 $aDiversity of rhizobia nodulating Lotus corniculatus grown in northern and southern regions of Uruguay.$h[electronic resource]
260 $c2012
500 $aArticle history: Article history: Received 6 October 2010/Received in revised form 12 May 2011/Accepted 13 May 2011.
520 $aAbstract: Diversity of rhizobia nodulating Lotus corniculatus grown in geographical regions with different rainfall regimes in northern and southern Uruguay, was estimated using 168 root nodule isolates. ERIC-PCR analysis revealed no correlation between observed fingerprints and the geographical origin of isolates. Despite the commercial strain U510 has been used for decades to inoculate L. corniculatus, none of the isolates corresponded to this strain. Phylogenetic analyses using 16S rRNA and atpD genes, and ITS sequences clustered all the isolates within genus Mesorhizobium. A great majority of the isolates likely belong to the species M. huakuii, as does the commercial strain U510. The remaining isolates were closely related to either M. septentrionale or M. caraganae. Although no M. loti-like bacteria were identified, all isolates carried symbiotic genes closely related to M. loti and other narrow host range Lotus rhizobia. A significant portion of the Uruguayan isolates were as efficient as the reference strain U510 in symbiosis with L. corniculatus. A few of the isolates were also capable of nitrogen fixation in symbiosis with L. uliginosus, albeit with lower efficiency than reference strains. Our results indicate that rhizobia nodulating L. corniculatus in Uruguay are genetically and phenotypically diverse, and that the commercial strain U510 is probably not adapted to survive the Uruguayan edaphoclimatic conditions.
650 $aLEGUMINOSAS FORRAJERAS
650 $aLOTUS CORNICULATUS
650 $aLOTUS ULIGINOSUS
650 $aRIZOBIOS
653 $a16S RRNA
653 $aATPD
653 $aITS
653 $aMESORHIZOBIUM
653 $aNIFH
653 $aNODC
700 1 $aIRISARRI, P.
700 1 $aLORITE, M.J.
700 1 $aCASARETTO, E.
700 1 $aREBUFFO, M.
700 1 $aSANJUAN, J.
700 1 $aMONZA, J.
773 $tApplied Soil Ecology,Volume 49, September 2011, Pages 197-207.
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INIA La Estanzuela (LE) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
30/06/2021 |
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Actualizado : |
30/06/2021 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
ANDINO, M.; GAIERO, P.; GONZÁLEZ-BARRIOS, P.; GALVÁN, G.; VILARÓ, F.; SPERANZA, P. |
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Afiliación : |
MARIANA ANDINO, Facultad de Agronomía, Universidad de la República, Montevideo, Uruguay.; PAOLA GAIERO, Facultad de Agronomía, Universidad de la República, Montevideo, Uruguay.; PABLO GONZÁLEZ-BARRIOS, Facultad de Agronomía, Universidad de la República, Montevideo, Uruguay.; GUILLERMO GALVÁN, Facultad de Agronomía, Universidad de la República, Montevideo, Uruguay.; FRANCISCO LUIS VILARO PAREJA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Facultad de Agronomía, Universidad de la República, Montevideo, Uruguay.; PABLO SPERANZA, Facultad de Agronomía, Universidad de la República, Montevideo, Uruguay. |
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Título : |
Potato introgressive hybridisation breeding for bacterial wilt resistance using Solanum commersonii Dun. as Donor: genetic and agronomic characterisation of a backcross 3 progeny. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Potato Research, 2021. Doi: https://doi.org/10.1007/s11540-021-09512-1 |
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ISSN : |
0014-3065 |
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DOI : |
10.1007/s11540-021-09512-1 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 30 October 2020; Accepted 26 April 2021; Published Online 17 June 2021.
Corresponding author: Gaiero, P., Facultad de Agronomía, Universidad de la República, Garzón 780, Montevideo, Uruguay; email:pgaiero@fagro.edu.uy |
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Contenido : |
ABSTRACT - Bacterial wilt caused by Ralstonia solanacearum is the main bacterial disease in potato. Solanum commersonii Dun. (cmm; 2n = 2x = 24, 1 EBN) is a native species to southern Brazil, Uruguay and Argentina with desirable traits for introgressive hybridisation breeding into cultivated potato such as resistance to R. solanacearum. In Uruguay, successful crosses between cmm and Solanum tuberosum Group Tuberosum (tbr; 2n = 4x = 48, 4 EBN) have been carried out with this objective, resulting in backcross 1, 2 and 3 progenies. The aim of this study was to characterise one backcross 3 progeny (BC3) using cytogenetic, genetic, morphological and agronomic descriptors. Resistance to R. solanacearum showed transgressive segregation and an association with plant architecture. Fifty-two percent of individuals had chromosome numbers close to cultivated potato with no evidence of preferential loss of cmm chromosomes. All BC3 individuals showed male sterility, probably due to nuclear-cytoplasmic interactions. Although there was wide segregation in morphological traits, most individuals resembled the recurrent tbr parents. A few more backcrosses combined with screening for bacterial wilt resistance may be necessary to allow for further recombination and removal of undesirable traits from cmm. The presence of BC3 individuals with chromosome numbers close to 2n = 48, combining morphological traits from tbr with good levels of resistance, suggests the occurrence of introgression events. This points to S. commersonii as one of the most promising genetic resources for potato breeding from the Southern Atlantic region.
© 2021, European Association for Potato Research. MenosABSTRACT - Bacterial wilt caused by Ralstonia solanacearum is the main bacterial disease in potato. Solanum commersonii Dun. (cmm; 2n = 2x = 24, 1 EBN) is a native species to southern Brazil, Uruguay and Argentina with desirable traits for introgressive hybridisation breeding into cultivated potato such as resistance to R. solanacearum. In Uruguay, successful crosses between cmm and Solanum tuberosum Group Tuberosum (tbr; 2n = 4x = 48, 4 EBN) have been carried out with this objective, resulting in backcross 1, 2 and 3 progenies. The aim of this study was to characterise one backcross 3 progeny (BC3) using cytogenetic, genetic, morphological and agronomic descriptors. Resistance to R. solanacearum showed transgressive segregation and an association with plant architecture. Fifty-two percent of individuals had chromosome numbers close to cultivated potato with no evidence of preferential loss of cmm chromosomes. All BC3 individuals showed male sterility, probably due to nuclear-cytoplasmic interactions. Although there was wide segregation in morphological traits, most individuals resembled the recurrent tbr parents. A few more backcrosses combined with screening for bacterial wilt resistance may be necessary to allow for further recombination and removal of undesirable traits from cmm. The presence of BC3 individuals with chromosome numbers close to 2n = 48, combining morphological traits from tbr with good levels of resistance, suggests the occurrence of introgression events.... Presentar Todo |
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Palabras claves : |
Agronomic performance; Backcrossing; Chromosome number; Genetic resistance; Ralstonia solanacearum; Wild potato relative. |
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Asunto categoría : |
F30 Genética vegetal y fitomejoramiento |
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Marc : |
LEADER 02875naa a2200289 a 4500
001 1062208
005 2021-06-30
008 2021 bl uuuu u00u1 u #d
022 $a0014-3065
024 7 $a10.1007/s11540-021-09512-1$2DOI
100 1 $aANDINO, M.
245 $aPotato introgressive hybridisation breeding for bacterial wilt resistance using Solanum commersonii Dun. as Donor$bgenetic and agronomic characterisation of a backcross 3 progeny.$h[electronic resource]
260 $c2021
500 $aArticle history: Received 30 October 2020; Accepted 26 April 2021; Published Online 17 June 2021. Corresponding author: Gaiero, P., Facultad de Agronomía, Universidad de la República, Garzón 780, Montevideo, Uruguay; email:pgaiero@fagro.edu.uy
520 $aABSTRACT - Bacterial wilt caused by Ralstonia solanacearum is the main bacterial disease in potato. Solanum commersonii Dun. (cmm; 2n = 2x = 24, 1 EBN) is a native species to southern Brazil, Uruguay and Argentina with desirable traits for introgressive hybridisation breeding into cultivated potato such as resistance to R. solanacearum. In Uruguay, successful crosses between cmm and Solanum tuberosum Group Tuberosum (tbr; 2n = 4x = 48, 4 EBN) have been carried out with this objective, resulting in backcross 1, 2 and 3 progenies. The aim of this study was to characterise one backcross 3 progeny (BC3) using cytogenetic, genetic, morphological and agronomic descriptors. Resistance to R. solanacearum showed transgressive segregation and an association with plant architecture. Fifty-two percent of individuals had chromosome numbers close to cultivated potato with no evidence of preferential loss of cmm chromosomes. All BC3 individuals showed male sterility, probably due to nuclear-cytoplasmic interactions. Although there was wide segregation in morphological traits, most individuals resembled the recurrent tbr parents. A few more backcrosses combined with screening for bacterial wilt resistance may be necessary to allow for further recombination and removal of undesirable traits from cmm. The presence of BC3 individuals with chromosome numbers close to 2n = 48, combining morphological traits from tbr with good levels of resistance, suggests the occurrence of introgression events. This points to S. commersonii as one of the most promising genetic resources for potato breeding from the Southern Atlantic region. © 2021, European Association for Potato Research.
653 $aAgronomic performance
653 $aBackcrossing
653 $aChromosome number
653 $aGenetic resistance
653 $aRalstonia solanacearum
653 $aWild potato relative
700 1 $aGAIERO, P.
700 1 $aGONZÁLEZ-BARRIOS, P.
700 1 $aGALVÁN, G.
700 1 $aVILARÓ, F.
700 1 $aSPERANZA, P.
773 $tPotato Research, 2021. Doi: https://doi.org/10.1007/s11540-021-09512-1
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