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 | Acceso al texto completo restringido a Biblioteca INIA Tacuarembó. Por información adicional contacte bibliotb@tb.inia.org.uy. |
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha : |
26/11/2019 |
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Actualizado : |
05/03/2020 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
DO CANTO, J.; STUDER, B.; FREI, U.; LÜBBERSTEDT, T. |
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Afiliación : |
JAVIER DO CANTO FAGUNDEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. 1Department of Agronomy, Iowa State University, Ames, IA, USA; BRUNO STUDER, Molecular Plant Breeding, Institute of Agricultural Sciences, ETH Zurich, Zurich, Switzerland.; URSULA FREI, Department of Agronomy, Iowa State.; THOMAS LÜBBERSTEDT, Department of Agronomy, Iowa State University, Ames, IA, USA. |
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Título : |
Pattern of inheritance of a self-fertility gene in an autotetraploid perennial ryegrass (Lolium perenne) population. |
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Fecha de publicación : |
2020 |
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Fuente / Imprenta : |
Plant Breeding, 1 February 2020, Volume 139, Issue 1, Pages 207-213. Doi: 10.1111/pbr.12765 |
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DOI : |
10.1111/pbr.12765 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 29 November 2018 // Revised: 31 March 2019 // Accepted: 13 September 2019. |
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Contenido : |
Abstract: A mutation causing self-fertility (SF) in perennial ryegrass was studied at the tetraploid level. The aim of this work was to determine a) whether SF remains functional in a tetraploid population and b) whether the SF mutation expresses dominance in heterozygous pollen grains. A tetraploidized plant carrying SF alleles was self?pollinated to create a segregating F2 population. In the F2 individuals, pollen compatibility ranged between 38% and 84% showing that SF remained functional. The SF locus genotype was the main determinant of pollen compatibility explaining 78% of the variation. The observed segregation was significantly different from the expected under both SF being dominant or recessive models (P(x2)?0.001) and tended to be intermediate between them, indicating partial dominance or additive gene action. The frequency of the different genotypes suggested that pollen grains homozygous for the mutation have a competitive advantage over heterozygous pollen and that pollen compatibility is affected by the interaction with additional loci. The implications of our results for breeding polyploid grasses are discussed. |
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Palabras claves : |
PERENNIAL RYEGRASS; SEGREGATION; SELF-FERTILITY; TETRAPLOID. |
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Asunto categoría : |
A50 Investigación agraria |
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Marc : |
LEADER 01962naa a2200229 a 4500
001 1060452
005 2020-03-05
008 2020 bl uuuu u00u1 u #d
024 7 $a10.1111/pbr.12765$2DOI
100 1 $aDO CANTO, J.
245 $aPattern of inheritance of a self-fertility gene in an autotetraploid perennial ryegrass (Lolium perenne) population.$h[electronic resource]
260 $c2020
500 $aArticle history: Received: 29 November 2018 // Revised: 31 March 2019 // Accepted: 13 September 2019.
520 $aAbstract: A mutation causing self-fertility (SF) in perennial ryegrass was studied at the tetraploid level. The aim of this work was to determine a) whether SF remains functional in a tetraploid population and b) whether the SF mutation expresses dominance in heterozygous pollen grains. A tetraploidized plant carrying SF alleles was self?pollinated to create a segregating F2 population. In the F2 individuals, pollen compatibility ranged between 38% and 84% showing that SF remained functional. The SF locus genotype was the main determinant of pollen compatibility explaining 78% of the variation. The observed segregation was significantly different from the expected under both SF being dominant or recessive models (P(x2)?0.001) and tended to be intermediate between them, indicating partial dominance or additive gene action. The frequency of the different genotypes suggested that pollen grains homozygous for the mutation have a competitive advantage over heterozygous pollen and that pollen compatibility is affected by the interaction with additional loci. The implications of our results for breeding polyploid grasses are discussed.
653 $aPERENNIAL RYEGRASS
653 $aSEGREGATION
653 $aSELF-FERTILITY
653 $aTETRAPLOID
700 1 $aSTUDER, B.
700 1 $aFREI, U.
700 1 $aLÜBBERSTEDT, T.
773 $tPlant Breeding, 1 February 2020, Volume 139, Issue 1, Pages 207-213. Doi: 10.1111/pbr.12765
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INIA Tacuarembó (TBO) |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha actual : |
21/02/2014 |
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Actualizado : |
05/05/2020 |
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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 : |
DÍAZ, M.T.; ALVAREZ, I.; DE LA FUENTE, J.; SAÑUDO, C.; CAMPO, M.M.; OLIVER, M.A.; FONT I FURNOLS, M.; MONTOSSI, F.; SAN JULIÁN, R.; NUTE, G.R.; CAÑEQUE, V. |
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Afiliación : |
MARÍA TERESA DÍAZ, Departamento de Tecnología de los Alimentos, Instituto Nacional de Investigacion y Tecnologia Agraria y Alimentaria, Madrid, Spain; INMACULADA ÁLVAREZ, Departamento de Tecnología de los Alimentos, Instituto Nacional de Investigacion y Tecnologia Agraria y Alimentaria, Madrid, Spain; JESÚS DE LA FUENTE, Departamento de Tecnología de los Alimentos, Instituto Nacional de Investigacion y Tecnologia Agraria y Alimentaria, Madrid, Spain; CARLOS SAÑUDO, Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Zaragoza, Spain; MARÍA DEL MAR CAMPO, Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Zaragoza, Spain; MARÍA ÀNGELS OLIVER, Centre de Tecnologia de la Carn, IRTA, Monells (Girona), Spain; MARIA FONT-I-FURNOLS, Centre de Tecnologia de la Carn, IRTA, Monells (Girona), Spain; FABIO MARCELO MONTOSSI PORCHILE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ROBERTO SAN JULIAN SANCHEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GEOFFREY R. NUTE, Division of Farm Animal Science, University of Bristol, Langford, United Kingdom; VICENTE CAÑEQUE, Departamento de Tecnología de los Alimentos, Instituto Nacional de Investigacion y Tecnologia Agraria y Alimentaria, Madrid, Spain. |
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Título : |
Fatty acid composition of meat from typical lamb production systems of Spain, United Kingdom, Germany and Uruguay |
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Fecha de publicación : |
2005 |
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Fuente / Imprenta : |
Meat Science, Volume 71, Issue 2, October 2005, Pages 256-263. DOI: https://doi.org/10.1016/j.meatsci.2005.03.020 |
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DOI : |
10.1016/j.meatsci.2005.03.020 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 17 December 2004 // Received in revised form 23 March 2005 // Accepted 23 March 2005. Acknowledgements: This work has been made possible by funding from
Agencia Espanñola de Cooperación Internacional, Spanish INIA (Instituto Nacional de Investigacio´n y Tecnología Agraria y Alimentaria) and Uruguayan INIA(Instituto Nacional de Investigacio´n Agraria). |
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Contenido : |
The fatty acid composition of commercial lambs from different production systems of Spain, Germany, United Kingdom and of two types of Uruguayan lambs (heavy and light) was studied. Concentrate fed lambs, as Spanish lambs, displayed the highest proportions of linoleic acid (C18:2), while Uruguayan lambs, reared under extensive grazing conditions, showed the highest proportions of linolenic acid (C18:3), due to the great concentration of this fatty acid in grass. German and British lambs, which were fed grass and concentrate, displayed intermediate proportions of linolenic acid (C18:3). Heavy Uruguayan lambs had higher intramuscular fat content (5.92%) than German (4.25%) and British (4.32%) lambs, and this content was twofold higher than light lambs (Spanish
(2.41%) and light Uruguayan (3.05%)). Heavy Uruguayan, German and British lambs had a low polyunsaturated/saturated (P/S) ratio due to their high saturated fatty acid (SFA) content and proportion. Principal component analysis was performed to study the relationship between fatty acids. Spanish lambs were clearly separated from the other types and were situated close to the proportions of short chain and n 6 fatty acids and n 6/n 3 ratio in the data plot for fatty acid proportions. Light Uruguayan lambs were located close to long chain fatty acids, and heavy Uruguayan and British lambs were placed near the antithrombotic potential (ATT), stearic acid (C18:0), SFA and conjugated linoleic acid (CLA) proportions. German lambs were located between
Spanish lambs and the other types. MenosThe fatty acid composition of commercial lambs from different production systems of Spain, Germany, United Kingdom and of two types of Uruguayan lambs (heavy and light) was studied. Concentrate fed lambs, as Spanish lambs, displayed the highest proportions of linoleic acid (C18:2), while Uruguayan lambs, reared under extensive grazing conditions, showed the highest proportions of linolenic acid (C18:3), due to the great concentration of this fatty acid in grass. German and British lambs, which were fed grass and concentrate, displayed intermediate proportions of linolenic acid (C18:3). Heavy Uruguayan lambs had higher intramuscular fat content (5.92%) than German (4.25%) and British (4.32%) lambs, and this content was twofold higher than light lambs (Spanish
(2.41%) and light Uruguayan (3.05%)). Heavy Uruguayan, German and British lambs had a low polyunsaturated/saturated (P/S) ratio due to their high saturated fatty acid (SFA) content and proportion. Principal component analysis was performed to study the relationship between fatty acids. Spanish lambs were clearly separated from the other types and were situated close to the proportions of short chain and n 6 fatty acids and n 6/n 3 ratio in the data plot for fatty acid proportions. Light Uruguayan lambs were located close to long chain fatty acids, and heavy Uruguayan and British lambs were placed near the antithrombotic potential (ATT), stearic acid (C18:0), SFA and conjugated linoleic acid (CLA) proportions. German l... Presentar Todo |
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Palabras claves : |
FATTY ACIDS; LAMB; MEAT ORIGIN; PRODUCTION SYSTEM. |
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Thesagro : |
ACIDOS GRASOS; ALEMANIA; CARNE; CORDERO; ESPAÑA; REINO UNIDO; URUGUAY. |
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Asunto categoría : |
L01 Ganadería |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/13369/1/Montoi-2005.pdf
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Marc : |
LEADER 03045naa a2200397 a 4500
001 1028915
005 2020-05-05
008 2005 bl uuuu u00u1 u #d
024 7 $a10.1016/j.meatsci.2005.03.020$2DOI
100 1 $aDÍAZ, M.T.
245 $aFatty acid composition of meat from typical lamb production systems of Spain, United Kingdom, Germany and Uruguay
260 $c2005
500 $aArticle history: Received 17 December 2004 // Received in revised form 23 March 2005 // Accepted 23 March 2005. Acknowledgements: This work has been made possible by funding from Agencia Espanñola de Cooperación Internacional, Spanish INIA (Instituto Nacional de Investigacio´n y Tecnología Agraria y Alimentaria) and Uruguayan INIA(Instituto Nacional de Investigacio´n Agraria).
520 $aThe fatty acid composition of commercial lambs from different production systems of Spain, Germany, United Kingdom and of two types of Uruguayan lambs (heavy and light) was studied. Concentrate fed lambs, as Spanish lambs, displayed the highest proportions of linoleic acid (C18:2), while Uruguayan lambs, reared under extensive grazing conditions, showed the highest proportions of linolenic acid (C18:3), due to the great concentration of this fatty acid in grass. German and British lambs, which were fed grass and concentrate, displayed intermediate proportions of linolenic acid (C18:3). Heavy Uruguayan lambs had higher intramuscular fat content (5.92%) than German (4.25%) and British (4.32%) lambs, and this content was twofold higher than light lambs (Spanish (2.41%) and light Uruguayan (3.05%)). Heavy Uruguayan, German and British lambs had a low polyunsaturated/saturated (P/S) ratio due to their high saturated fatty acid (SFA) content and proportion. Principal component analysis was performed to study the relationship between fatty acids. Spanish lambs were clearly separated from the other types and were situated close to the proportions of short chain and n 6 fatty acids and n 6/n 3 ratio in the data plot for fatty acid proportions. Light Uruguayan lambs were located close to long chain fatty acids, and heavy Uruguayan and British lambs were placed near the antithrombotic potential (ATT), stearic acid (C18:0), SFA and conjugated linoleic acid (CLA) proportions. German lambs were located between Spanish lambs and the other types.
650 $aACIDOS GRASOS
650 $aALEMANIA
650 $aCARNE
650 $aCORDERO
650 $aESPAÑA
650 $aREINO UNIDO
650 $aURUGUAY
653 $aFATTY ACIDS
653 $aLAMB
653 $aMEAT ORIGIN
653 $aPRODUCTION SYSTEM
700 1 $aALVAREZ, I.
700 1 $aDE LA FUENTE, J.
700 1 $aSAÑUDO, C.
700 1 $aCAMPO, M.M.
700 1 $aOLIVER, M.A.
700 1 $aFONT I FURNOLS, M.
700 1 $aMONTOSSI, F.
700 1 $aSAN JULIÁN, R.
700 1 $aNUTE, G.R.
700 1 $aCAÑEQUE, V.
773 $tMeat Science, Volume 71, Issue 2, October 2005, Pages 256-263. DOI: https://doi.org/10.1016/j.meatsci.2005.03.020
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