Quantitative trait loci analysis of leaf and plant longevity in <i>Arabidopsis thaliana</i>

The natural variation in leaf and plant longevity in Arabidopsis thaliana was analysed in a set of 45 ecotypes and 155 recombinant inbred lines derived from a Cape Verde Islands (Cvi)xLandsberg erecta (Ler) cross. Post-bolting longevity was inversely related to time to flowering and rosette leaf num...

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Detalles Bibliográficos
Autores principales: Luquez, Virginia Martha Cristina, Sasal, Yamila, Medrano, Micaela, Martín, María I., Mujica, María de la Merced, Guiamet, Juan José
Formato: Articulo
Lenguaje:Inglés
Publicado: 2006
Materias:
Botánica
Arabidopsis thaliana
Leaf longevity
Nutrient levels
Quantitative trait loci
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/83103
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-83103
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Botánica
Arabidopsis thaliana
Leaf longevity
Nutrient levels
Quantitative trait loci
spellingShingle Botánica
Arabidopsis thaliana
Leaf longevity
Nutrient levels
Quantitative trait loci
Luquez, Virginia Martha Cristina
Sasal, Yamila
Medrano, Micaela
Martín, María I.
Mujica, María de la Merced
Guiamet, Juan José
Quantitative trait loci analysis of leaf and plant longevity in <i>Arabidopsis thaliana</i>
topic_facet Botánica
Arabidopsis thaliana
Leaf longevity
Nutrient levels
Quantitative trait loci
description The natural variation in leaf and plant longevity in Arabidopsis thaliana was analysed in a set of 45 ecotypes and 155 recombinant inbred lines derived from a Cape Verde Islands (Cvi)xLandsberg erecta (Ler) cross. Post-bolting longevity was inversely related to time to flowering and rosette leaf number in the set of 45 ecotypes, with Cvi having the longest and Ler the shortest post-bolting longevity. The recombinant inbred line population was tested under low or high soil nutrient levels (LN or HN, respectively). Three quantitative trait loci (QTL), one in chromosome 3 and two in chromosomes 1 and 5, were associated with longevity of the 6th rosette leaf under LN and HN, respectively. Four QTL for post-bolting longevity were found in chromosomes 1, 3, 4, and 5, and two in chromosomes 1 and 5 under LN and HN, respectively. An epistatic interaction affecting post-bolting longevity under LN, but not HN, was detected. Ler and Cvi carry a mix of increasing and decreasing alleles for the QTL affecting longevity of the 6th leaf and post-bolting longevity. Longevity of the 6th rosette leaf was associated with different QTL than post-bolting longevity, and it was affected by different QTL depending on nutrient availability. By contrast, the major QTL affecting post-bolting longevity exerted significant effects irrespective of soil nutrient availability.
format Articulo
Articulo
author Luquez, Virginia Martha Cristina
Sasal, Yamila
Medrano, Micaela
Martín, María I.
Mujica, María de la Merced
Guiamet, Juan José
author_facet Luquez, Virginia Martha Cristina
Sasal, Yamila
Medrano, Micaela
Martín, María I.
Mujica, María de la Merced
Guiamet, Juan José
author_sort Luquez, Virginia Martha Cristina
title Quantitative trait loci analysis of leaf and plant longevity in <i>Arabidopsis thaliana</i>
title_short Quantitative trait loci analysis of leaf and plant longevity in <i>Arabidopsis thaliana</i>
title_full Quantitative trait loci analysis of leaf and plant longevity in <i>Arabidopsis thaliana</i>
title_fullStr Quantitative trait loci analysis of leaf and plant longevity in <i>Arabidopsis thaliana</i>
title_full_unstemmed Quantitative trait loci analysis of leaf and plant longevity in <i>Arabidopsis thaliana</i>
title_sort quantitative trait loci analysis of leaf and plant longevity in <i>arabidopsis thaliana</i>
publishDate 2006
url http://sedici.unlp.edu.ar/handle/10915/83103
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