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Statements

Subject Item
n2:RIV%2F60076658%3A12220%2F13%3A43886131%21RIV14-MSM-12220___
rdf:type
n11:Vysledek skos:Concept
dcterms:description
Durum wheat often faces water scarcity and high temperatures, two events that usually occur simultaneously in the fields. Here we report on the stress responsive strategy of two durum wheat cultivars, characterized by different water use efficiency, subjected to drought, heat and a combination of both stresses.The cv Ofanto (lower water use efficiency) activated a large set of well-known drought-related genes after drought treatment, while Cappelli (higher water use efficiency) showed the constitutive expression of several genes induced by drought in Ofanto and a modulation of a limited number of genes in response to stress. At molecular level the two cvs differed for the activation of molecular messengers, genes involved in the regulation of chromatin condensation, nuclear speckles and stomatal closure. Noteworthy, the heat response in Cappelli involved also the up-regulation of genes belonging to fatty acid ?-oxidation pathway, glyoxylate cycle and senescence, suggesting an early activation of senescence in this cv. A gene of unknown function having the greatest expression difference between the two cultivars was selected and used for expression QTL analysis, the corresponding QTL was mapped on chromosome 6B.Ofanto and Cappelli are characterized by two opposite stress-responsive strategies. In Ofanto the combination of drought and heat stress led to an increased number of modulated genes, exceeding the simple cumulative effects of the two single stresses, whereas in Cappelli the same treatment triggered a number of differentially expressed genes lower than those altered in response to heat stress alone. This work provides clear evidences that the genetic system based on Cappelli and Ofanto represents an ideal tool for the genetic dissection of the molecular response to drought and other abiotic stresses. Durum wheat often faces water scarcity and high temperatures, two events that usually occur simultaneously in the fields. Here we report on the stress responsive strategy of two durum wheat cultivars, characterized by different water use efficiency, subjected to drought, heat and a combination of both stresses.The cv Ofanto (lower water use efficiency) activated a large set of well-known drought-related genes after drought treatment, while Cappelli (higher water use efficiency) showed the constitutive expression of several genes induced by drought in Ofanto and a modulation of a limited number of genes in response to stress. At molecular level the two cvs differed for the activation of molecular messengers, genes involved in the regulation of chromatin condensation, nuclear speckles and stomatal closure. Noteworthy, the heat response in Cappelli involved also the up-regulation of genes belonging to fatty acid ?-oxidation pathway, glyoxylate cycle and senescence, suggesting an early activation of senescence in this cv. A gene of unknown function having the greatest expression difference between the two cultivars was selected and used for expression QTL analysis, the corresponding QTL was mapped on chromosome 6B.Ofanto and Cappelli are characterized by two opposite stress-responsive strategies. In Ofanto the combination of drought and heat stress led to an increased number of modulated genes, exceeding the simple cumulative effects of the two single stresses, whereas in Cappelli the same treatment triggered a number of differentially expressed genes lower than those altered in response to heat stress alone. This work provides clear evidences that the genetic system based on Cappelli and Ofanto represents an ideal tool for the genetic dissection of the molecular response to drought and other abiotic stresses.
dcterms:title
Different stress responsive strategies to drought and heat in two durum wheat cultivars with contrasting water use efficiency Different stress responsive strategies to drought and heat in two durum wheat cultivars with contrasting water use efficiency
skos:prefLabel
Different stress responsive strategies to drought and heat in two durum wheat cultivars with contrasting water use efficiency Different stress responsive strategies to drought and heat in two durum wheat cultivars with contrasting water use efficiency
skos:notation
RIV/60076658:12220/13:43886131!RIV14-MSM-12220___
n11:predkladatel
n12:orjk%3A12220
n6:aktivita
n13:S
n6:aktivity
S
n6:cisloPeriodika
821
n6:dodaniDat
n7:2014
n6:domaciTvurceVysledku
n10:1739859 n10:9375201
n6:druhVysledku
n8:J
n6:duvernostUdaju
n19:S
n6:entitaPredkladatele
n15:predkladatel
n6:idSjednocenehoVysledku
69635
n6:idVysledku
RIV/60076658:12220/13:43886131
n6:jazykVysledku
n16:eng
n6:klicovaSlova
drought stress, durum wheat, QTL analysis, expression analysis
n6:klicoveSlovo
n9:drought%20stress n9:durum%20wheat n9:expression%20analysis n9:QTL%20analysis
n6:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n6:kontrolniKodProRIV
[59D9C5AB6CDC]
n6:nazevZdroje
BMC Genomics
n6:obor
n17:EB
n6:pocetDomacichTvurcuVysledku
2
n6:pocetTvurcuVysledku
13
n6:rokUplatneniVysledku
n7:2013
n6:svazekPeriodika
14
n6:tvurceVysledku
Aprile, Alessio De Bellis, Luigi Čurn, Vladislav Rizza, Fulvia Maré, Caterina Perrotta, Carla Borrelli, Grazia M Marone, Daniela Havlíčková, Lenka Cattivalli, Luigi Panna, Riccardo Mastrangelo, Anna M Rampino, Patrizia
s:issn
1471-2164
s:numberOfPages
18
n14:doi
10.1186/1471-2164-14-821
n18:organizacniJednotka
12220