Identification of genes induced upon water-deficit stress in a drought-tolerant rice cultivar

Rodríguez, M.; Canales, Eduardo; Borroto, Carlos; Carmona, Elva R.; López, J.M. Peña; Pujol, Merardo; Borrás‐Hidalgo, Orlando

doi:10.1016/j.jplph.2005.07.005

Cited by 31 publications

(18 citation statements)

References 23 publications

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“…Salekdeh et al (2002) [43] have shown concentrations of several leaf proteins have been increased significantly during drought and declined on re-watering. Genes induced in drought stress generally involved in protection of cells from water deficit by producing metabolic proteins and regulation of genes for signal transduction [44]. Very recently, Rabello et al (2008) [45] identified drought responsive genes in roots of upland rice and observed that the genes exclusively expressed in the tolerant genotypes were related to the maintenance of turgor and cell integrity.…”

Section: Discussionmentioning

confidence: 99%

Molecular Mapping of QTLs for Drought Related Traits at Seedling Stage under PEG Induced Stress Conditions in Rice

Srividya¹,

Vemireddy²,

Ramanarao³

et al. 2011

AJPS

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Differential response of seedling characteristics under water stress conditions is known to be associated with drought resistance in rice and elucidation of its genetics could be of help in breeding for tolerance to the stress. A recombinant inbred population derived from the cross between a semi-dwarf variety IR64 and landrace INRC10192 was grown in hydroponic culture and phenotyped for varied responses of seedlings to water deficit imposed by poly ethylene glycol (PEG). The ratio between mean value of seedling trait under stress and control conditions was used for assessing drought tolerance. In all 19 putative QTLs relating to five seedling traits viz., shoot length, maximum root length, shoot dry weight, root dry weight and root to shoot dry weight ratio under PEG induced stress conditions were identified confirms that the traditional tall landraces as

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Section: Discussionmentioning

confidence: 99%

Molecular Mapping of QTLs for Drought Related Traits at Seedling Stage under PEG Induced Stress Conditions in Rice

Srividya¹,

Vemireddy²,

Ramanarao³

et al. 2011

AJPS

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“…They might correspond to genes not yet characterized in any plant species. Several studies have reported the identifi cation of new transcripts using the same approach in other plants (34,(76)(77)(78). The characterization of genes not yet described in databases should be considered because it may provide new information about the plant stress response.…”

Section: Discussionmentioning

confidence: 99%

Identification of Differentially Expressed Genes by cDNA-AFLP Technique in Response to Drought Stress in Triticum durum

Melloul

Iraqi²,

Alaoui

et al. 2014

Food. Technol. Biotechnol.

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SummaryDrought is the single largest abiotic stress factor leading to reduced crop yields. The identifi cation of diff erentially expressed genes and the understanding of their functions in environmentally stressful conditions are essential to improve drought tolerance. Transcriptomics is a powerful approach for the global analysis of molecular mechanisms under abiotic stress. To identify genes that are important for drought tolerance, we analyzed mRNA populations from untreated and drought-stressed leaves of Triticum durum by cDNA --amplifi ed fragment length polymorphism (cDNA-AFLP) technique. Overall, 76 transcript--derived fragments corresponding to diff erentially induced transcripts were successfully sequenced. Most of the transcripts identifi ed here, using basic local alignment search tool (BLAST) database, were genes belonging to diff erent functional categories related to metabolism, energy, cellular biosynthesis, cell defense, signal transduction, transcription regulation, protein degradation and transport. The expression pa erns of these genes were confi rmed by quantitative reverse transcriptase real-time polymerase chain reaction (qRT--PCR) based on ten selected genes representing diff erent pa erns. These results could facilitate the understanding of cellular mechanisms involving groups of genes that act in coordination in response to stimuli of water defi cit. The identifi cation of novel stress-responsive genes will provide useful data that could help develop breeding strategies aimed at improving durum wheat tolerance to fi eld stress.

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“…A similar mechanism of stress response seems to be at work when plants are under salt and drought stresses (Rodríguez et al, 2006). High salinity and drought stresses are known to cause dehydration, and consequently, trigger the biosynthesis of the phytohormone abscisic acid whose activity in turn induces the expression of genes that regulate biochemical and physiological processes essential for plants to adapt to saline or drought conditions (Boudsocq and Laurière, 2005;Fujita et al, 2011;Finkelstein et al, 2002;Yamaguchi-Shinozaki and Shinozaki, 2006).…”

Section: Introductionmentioning

confidence: 99%

Salt and drought stress affects electron transport chain genes in rice

Varshikar

Tan

2017

Int. j. adv. appl. sci

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Rice is well known as a salt and drought sensitive crop. Salt and drought stresses greatly affect the growth and productivity of rice plants. To study the molecular response of rice to these abiotic stresses, 14 day-old whole seedlings of the MR253 rice variety were subjected to varying duration of drought-and salt-stress treatments. Using the Differential Display Reverse Transcription Polymerase Chain Reaction (DDRT-PCR), two putative genes were identified; one encodes the apocytochrome f precursor while the other codes for the ATP synthase B chain. The expression of the apocytochrome f precursor was downregulated by 10-fold compared to that of the untreated seedlings after one day of drought-stress treatment but its expression seemed to recover back up to levels similar to those of the untreated seedlings if the duration of drought stress was extended for more than one day. On the other hand, the ATP synthase B chain showed a two-fold increase in expression relative to that of the untreated seedlings after one hour of saltstress treatment but the level of its expression dropped back to those similar to the untreated seedlings if the duration of salt stress went beyond one hour. These findings suggest that genes encoding the apocytochrome f precursor and the ATP synthase B chain seem to play a role in the early molecular response of rice plants to abiotic stresses.

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Identification of genes induced upon water-deficit stress in a drought-tolerant rice cultivar

Cited by 31 publications

References 23 publications

Molecular Mapping of QTLs for Drought Related Traits at Seedling Stage under PEG Induced Stress Conditions in Rice

Molecular Mapping of QTLs for Drought Related Traits at Seedling Stage under PEG Induced Stress Conditions in Rice

Identification of Differentially Expressed Genes by cDNA-AFLP Technique in Response to Drought Stress in Triticum durum

Salt and drought stress affects electron transport chain genes in rice

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