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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; INIA Treinta y Tres. |
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Fecha : |
20/08/2019 |
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Actualizado : |
16/03/2021 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
LEZAMA, F.; PEREIRA, M.; ALTESOR, A.; PARUELO, J. |
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Afiliación : |
FELIPE LEZAMA; MARCELO PEREIRA; ALICIA ALTESOR; JOSÉ PARUELO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Grasslands of Uruguay: classification based on vegetation plots. |
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Fecha de publicación : |
2019 |
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Fuente / Imprenta : |
Phytocoenologia, 2019, v. 49(3): 211-229. Doi: https://doi.org/10.1127/phyto/2019/0215 |
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DOI : |
10.1127/phyto/2019/0215 |
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Idioma : |
Inglés |
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Notas : |
Article history: Submitted: 25 May 2017 //First decision: 6 October 2017// Accepted: 22 August 2018.// Co-ordinating Editor: Idoia Biurrun. |
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Contenido : |
Abstract:
Aims: The Rio de la Plata grasslands are one of the largest areas of temperate humid and sub-humid grasslands
of the world. A substantial fraction of these natural grasslands are preserved in Uruguay, occupying more than
60% of the country. So far, Uruguayan grasslands have been indirectly classified using only geomorphological
and edaphic criteria. An adequate description of vegetation heterogeneity is a prerequisite to study ecosystem
function and to design management and conservation strategies for this region. To this end, we present a classification of the natural grassland communities of Uruguay based on a wide and comprehensive set of phytosociological relevés. Study area: Uruguay. Methods: Three hundred eight grassland relevés were utilized for classification and ordination multivariate analyses. Agglomerative clustering based on the flexible Beta linkage
method and Sørensen distance measure were employed to identify relevé groups. Indicator species analysis was
also performed to identify diagnostic species. We used Non-metric multidimensional scaling to determine the
main floristic gradients. Results: Five communities and 14 sub-communities were identified. Two of the communities were restricted to the ?Basaltic? region of central and northern Uruguay, while the other three were
distributed through the Eastern Hills, North Eastern Sedimentary Basin and the South Central regions. Three
of the communities correspond to densely-vegetated grasslands associated with medium and deep soils. The
remaining two communities correspond to sparsely-vegetated grasslands on shallow soils. The main floristic
gradient separated sparsely-vegetated grasslands from densely-vegetated ones, and was related to soil and topographical characteristics. The second floristic gradient separated grasslands by their different geological substrates. Conclusions: In this study, we present the first attempt to conduct a vegetation classification of Uruguayan grasslands based on floristic composition. Vegetation typologies, like the one we propose, can be used
as a framework to extrapolate point information on grassland management and vulnerability.
Keywords: Campos; cool-season grass; grassland; Indicator Species Analysis; phytosociological MenosAbstract:
Aims: The Rio de la Plata grasslands are one of the largest areas of temperate humid and sub-humid grasslands
of the world. A substantial fraction of these natural grasslands are preserved in Uruguay, occupying more than
60% of the country. So far, Uruguayan grasslands have been indirectly classified using only geomorphological
and edaphic criteria. An adequate description of vegetation heterogeneity is a prerequisite to study ecosystem
function and to design management and conservation strategies for this region. To this end, we present a classification of the natural grassland communities of Uruguay based on a wide and comprehensive set of phytosociological relevés. Study area: Uruguay. Methods: Three hundred eight grassland relevés were utilized for classification and ordination multivariate analyses. Agglomerative clustering based on the flexible Beta linkage
method and Sørensen distance measure were employed to identify relevé groups. Indicator species analysis was
also performed to identify diagnostic species. We used Non-metric multidimensional scaling to determine the
main floristic gradients. Results: Five communities and 14 sub-communities were identified. Two of the communities were restricted to the ?Basaltic? region of central and northern Uruguay, while the other three were
distributed through the Eastern Hills, North Eastern Sedimentary Basin and the South Central regions. Three
of the communities correspond to densely-vegetated grasslands associate... Presentar Todo |
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Palabras claves : |
CAMPOS; COOL-SEASON GRASS; GRASSLAND; INDICATOR SPECIES ANALYSIS; PHYTOSOCIOLOGICAL RELEVÉ; SOIL DEPTH; SPECIES RICHNESS; VEGETATION CLASSIFICATION; WARM-SEASON GRASS. |
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Thesagro : |
PASTURAS; URUGUAY. |
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Asunto categoría : |
A50 Investigación agraria |
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Marc : |
LEADER 03302naa a2200313 a 4500
001 1060036
005 2021-03-16
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1127/phyto/2019/0215$2DOI
100 1 $aLEZAMA, F.
245 $aGrasslands of Uruguay$bclassification based on vegetation plots.$h[electronic resource]
260 $c2019
500 $aArticle history: Submitted: 25 May 2017 //First decision: 6 October 2017// Accepted: 22 August 2018.// Co-ordinating Editor: Idoia Biurrun.
520 $aAbstract: Aims: The Rio de la Plata grasslands are one of the largest areas of temperate humid and sub-humid grasslands of the world. A substantial fraction of these natural grasslands are preserved in Uruguay, occupying more than 60% of the country. So far, Uruguayan grasslands have been indirectly classified using only geomorphological and edaphic criteria. An adequate description of vegetation heterogeneity is a prerequisite to study ecosystem function and to design management and conservation strategies for this region. To this end, we present a classification of the natural grassland communities of Uruguay based on a wide and comprehensive set of phytosociological relevés. Study area: Uruguay. Methods: Three hundred eight grassland relevés were utilized for classification and ordination multivariate analyses. Agglomerative clustering based on the flexible Beta linkage method and Sørensen distance measure were employed to identify relevé groups. Indicator species analysis was also performed to identify diagnostic species. We used Non-metric multidimensional scaling to determine the main floristic gradients. Results: Five communities and 14 sub-communities were identified. Two of the communities were restricted to the ?Basaltic? region of central and northern Uruguay, while the other three were distributed through the Eastern Hills, North Eastern Sedimentary Basin and the South Central regions. Three of the communities correspond to densely-vegetated grasslands associated with medium and deep soils. The remaining two communities correspond to sparsely-vegetated grasslands on shallow soils. The main floristic gradient separated sparsely-vegetated grasslands from densely-vegetated ones, and was related to soil and topographical characteristics. The second floristic gradient separated grasslands by their different geological substrates. Conclusions: In this study, we present the first attempt to conduct a vegetation classification of Uruguayan grasslands based on floristic composition. Vegetation typologies, like the one we propose, can be used as a framework to extrapolate point information on grassland management and vulnerability. Keywords: Campos; cool-season grass; grassland; Indicator Species Analysis; phytosociological
650 $aPASTURAS
650 $aURUGUAY
653 $aCAMPOS
653 $aCOOL-SEASON GRASS
653 $aGRASSLAND
653 $aINDICATOR SPECIES ANALYSIS
653 $aPHYTOSOCIOLOGICAL RELEVÉ
653 $aSOIL DEPTH
653 $aSPECIES RICHNESS
653 $aVEGETATION CLASSIFICATION
653 $aWARM-SEASON GRASS
700 1 $aPEREIRA, M.
700 1 $aALTESOR, A.
700 1 $aPARUELO, J.
773 $tPhytocoenologia, 2019$gv. 49(3): 211-229. Doi: https://doi.org/10.1127/phyto/2019/0215
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Registro original : |
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 : |
02/05/2023 |
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Actualizado : |
02/05/2023 |
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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 : |
BARAIBAR, S.; IRIARTE, W.; DE LEON, W.; BONNECARRERE, V. |
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Afiliación : |
SILVINA BARAIBAR PEDERSEN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; WANDA IRIARTE GRECO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; WILMAR DAMIAN DE LEON CARRO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARIA VICTORIA BONNECARRERE MARTINEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Validation of SNP markers for selection of semi-dwarf and peduncle extrusion in barley. |
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Fecha de publicación : |
2023 |
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Fuente / Imprenta : |
Molecular Breeding, 2023, Volume 43, Issue 4, Article 30. https://doi.org/10.1007/s11032-023-01371-7 |
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ISSN : |
1380-3743 |
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DOI : |
10.1007/s11032-023-01371-7 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 16 May 2022; Accepted 16 March 2023; Published online 13 April 2023. -- Corresponding author: Bonnecarrère, V.; Instituto Nacional de Investigación Agropecuaria (INIA), Area Mejoramiento Genetico y Biotecnologia Vegetal, Estación Experimental INIA Las Brujas, Ruta 48 km 10, Canelones, Uruguay; email:vbonnecarrere@lb.inia.org.uy -- FUNDING: This work was funded by the INIA (Instituto Nacional de Investigación Agropecuaria) Projects: Mejoramiento de cultivo de secano and Mejoramiento molecular de cultivos. -- |
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Contenido : |
This study aimed to validate the use of two SNP markers associated to a sdw1 allele identified previously in a short barley genotype (ND23049) with an adequate peduncle extrusion which reduces predisposition to fungal disease development. First, the GBS SNP were converted in a KASP marker but only one of them, named TP4712, correctly amplified all allelic variations and had a Mendelian segregation in a F2 population. To corroborate the association between TP4712 allele with plant height and peduncle extrusion, a total of 1221 genotypes were genotyped and evaluated for both traits. Out of the 1221 genotypes, 199 were F4 lines, 79 were a diverse panel, and 943 were two complete breeding cohorts of stage 1 yield trials. To corroborate the association between the sdw1 allele and the short plant height with adequate peduncle extrusion, contingency tables were created, grouping the 2427 data points into categories. Based on the contingency analysis, it was demonstrated that the higher proportion of short plants with adequate peduncle extrusion were present in genotypes carrying the SNP allele of ND23049 regardless the population and the sowing date. This study develops a marker-assisted selection tool to accelerate the introgression of favourable alleles for plant height and peduncle extrusion in adapted germplasm. © 2023, The Author(s), under exclusive licence to Springer Nature B.V. |
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Palabras claves : |
ÁREA MEJORAMIENTO GENÉTICO Y BIOTECNOLOGÍA VEGETAL - INIA; Breeding population; Marker-assisted selection; Peduncle extrusion; Plant height; SISTEMA AGRÍCOLA-GANADERO - INIA; SNP marker. |
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Asunto categoría : |
F30 Genética vegetal y fitomejoramiento |
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Marc : |
LEADER 02839nam a2200265 a 4500
001 1064065
005 2023-05-02
008 2023 bl uuuu u01u1 u #d
022 $a1380-3743
024 7 $a10.1007/s11032-023-01371-7$2DOI
100 1 $aBARAIBAR, S.
245 $aValidation of SNP markers for selection of semi-dwarf and peduncle extrusion in barley.$h[electronic resource]
260 $aMolecular Breeding, 2023, Volume 43, Issue 4, Article 30. https://doi.org/10.1007/s11032-023-01371-7$c1007
500 $aArticle history: Received 16 May 2022; Accepted 16 March 2023; Published online 13 April 2023. -- Corresponding author: Bonnecarrère, V.; Instituto Nacional de Investigación Agropecuaria (INIA), Area Mejoramiento Genetico y Biotecnologia Vegetal, Estación Experimental INIA Las Brujas, Ruta 48 km 10, Canelones, Uruguay; email:vbonnecarrere@lb.inia.org.uy -- FUNDING: This work was funded by the INIA (Instituto Nacional de Investigación Agropecuaria) Projects: Mejoramiento de cultivo de secano and Mejoramiento molecular de cultivos. --
520 $aThis study aimed to validate the use of two SNP markers associated to a sdw1 allele identified previously in a short barley genotype (ND23049) with an adequate peduncle extrusion which reduces predisposition to fungal disease development. First, the GBS SNP were converted in a KASP marker but only one of them, named TP4712, correctly amplified all allelic variations and had a Mendelian segregation in a F2 population. To corroborate the association between TP4712 allele with plant height and peduncle extrusion, a total of 1221 genotypes were genotyped and evaluated for both traits. Out of the 1221 genotypes, 199 were F4 lines, 79 were a diverse panel, and 943 were two complete breeding cohorts of stage 1 yield trials. To corroborate the association between the sdw1 allele and the short plant height with adequate peduncle extrusion, contingency tables were created, grouping the 2427 data points into categories. Based on the contingency analysis, it was demonstrated that the higher proportion of short plants with adequate peduncle extrusion were present in genotypes carrying the SNP allele of ND23049 regardless the population and the sowing date. This study develops a marker-assisted selection tool to accelerate the introgression of favourable alleles for plant height and peduncle extrusion in adapted germplasm. © 2023, The Author(s), under exclusive licence to Springer Nature B.V.
653 $aÁREA MEJORAMIENTO GENÉTICO Y BIOTECNOLOGÍA VEGETAL - INIA
653 $aBreeding population
653 $aMarker-assisted selection
653 $aPeduncle extrusion
653 $aPlant height
653 $aSISTEMA AGRÍCOLA-GANADERO - INIA
653 $aSNP marker
700 1 $aIRIARTE, W.
700 1 $aDE LEON, W.
700 1 $aBONNECARRERE, V.
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