Drought
Strategy for selection of soybean genotypes tolerant to drought during germination
Authors: S.A.G. Dantas, F.C.S. Silva, L.J. Silva and F.L. Silva
Water deficit is the main reason for instability in the context of soybean culture. The development of strategies for the selection of more tolerant genotypes is necessary. These strategies include the use of polyethylene glycol 6000 solutions (PEG-6000) for conducting the germination test under conditions of water restriction.. Read More»
- Genet. Mol. Res. 16(2):
- gmr16029654
- DOI:
- 10.4238/gmr16029654
Selection of cowpea progenies with enhanced drought-tolerance traits using principal component analysis
Authors: C.C. Sousa,K.J. Damasceno-Silva, E.A. Bastos,M.M. Rocha
Vigna unguiculata (L.) Walp (cowpea) is a food crop with high nutritional value that is cultivated throughout tropical and subtropical regions of the world. The main constraint on high productivity of cowpea is water deficit, caused by the long periods of drought that occur in these regions. The aim of the present study was to.. Read More»
- Genet. Mol. Res. 14(4):
- 2015.December.7.10
- DOI:
- 10.4238/2015.December.7.10
Cloning and characterization of a SnRK2 gene from Jatropha curcas L
Authors: J. Chun, F.-S. Li, Y. Ma, S.-H. Wang and F. Chen
Although the SnRK2 class of Ser/Thr protein kinases is critical for signal transduction and abiotic stress resistance in plants, there have been no studies to examine SnRK2 in Jatropha curcas L. In the present study, JcSnRK2 was cloned from J. curcas using the rapid amplification of cDNA end technique and characterized. The JcSnRK2 genomic sequence is 257.. Read More»
- Genet. Mol. Res. 13(4):
- 2014
- DOI:
- 10.4238/2014
Bulked segregant analysis for relative water content to detect quantitative trait loci in wheat under drought stress
Authors: M.R. Naroui Rad M. Abdul Kadir M.Y. Rafii H.Z.E. Jaafar M.R. Naghavi
This study was carried out to evaluate the genetic effect of quantitative trait loci (QTLs) conferring drought tolerance in wheat. A population of 120 F2 individuals from the cross between the drought-tolerant S-78-11 and drought-sensitive Tajan cultivars were analyzed for their segregation under drought stress conditions. The relative water content under dr.. Read More»
- Genet. Mol. Res. 11(4):
- 2012.November.12.5
- DOI:
- 10.4238/2012.November.12.5
Transgenic rice expressing a cassava (Manihot esculenta Crantz) plasma membrane gene MePMP3-2 exhibits enhanced tolerance to salt and drought stresses
Authors: Y. Yu1,2*, Y.C. Cui1*, C. Ren1,2, P.S.C.F. Rocha1, M. Peng3, G.Y. Xu4, M.L. Wang1 and X.J. Xia1
Plasma membrane proteolipid 3 (PMP3) is a class of small hydrophobic proteins found in many organisms including higher plants. Some plant PMP3 genes have been shown to respond to abiotic stresses and to participate in the processes of plant stress tolerance. In this study, we isolated the cassava (Manihot esculenta Crantz) MePMP3-2 gene and functionally c.. Read More»
- Genet. Mol. Res. 15(1):
- gmr.15017336
- DOI:
- 10.4238/gmr.15017336
Soybean physiology and gene expression during drought
Authors: R. Stolf-Moreira, M.E. Medri, N. Neumaier, N.G. Lemos, J.A. Pimenta, S. Tobita, R.L. Brogin, F.C. Marcelino-Guimar�£es, M.C.N. Oliveira, J.R.B. Farias, R.V. Abdelnoor and A.L. Nepomuceno
Soybean genotypes MG/BR46 (Conquista) and BR16, drought-tolerant and -sensitive, respectively, were compared in terms of morphophysiological and gene-expression responses to water stress during two stages of development. Gene-expression analysis showed differential responses in Gmdreb1a and Gmpip1b mRNA expression within 30 da.. Read More»
- Genet. Mol. Res. 9(4):
- vol9-4gmr851
- DOI:
- 10.4238/vol9-4gmr851
Transcription factors expressed in soybean roots under drought stress
Authors: S.S. Pereira, F.C.M. Guimar�£es, J.F.C. Carvalho, R. Stolf-Moreira, M.C.N. Oliveira, A.A.P. Rolla, J.R.B. Farias, N. Neumaier and A.L. Nepomuceno
To gain insight into stress-responsive gene regulation in soybean plants, we identified consensus sequences that could categorize the transcription factors MYBJ7, BZIP50, C2H2, and NAC2 as members of the gene families myb, bzip, c2h2, and nac, respectively. We also investigated the evolutionary relationship of these transcript.. Read More»
- Genet. Mol. Res. 10(4):
- 2011.October.21.5
- DOI:
- 10.4238/2011.October.21.5
Cassava genetic resources and their utilization for breeding of the crop
Authors: Nagib M.A. Nassar
Wild cassava relatives are perennials and vary in growth pattern from nearly acaulescent subshrubs to small trees. They have been used as a source of useful characters such as high protein content, apomixis, resistance to mealybug and mosaic disease, and tolerance to drought. Indigenous clones are a potential source of β-.. Read More»
- Genet. Mol. Res. 6(4):
Mapping QTLs for drought tolerance in an F2:3 population from an inter-specific cross between Gossypium tomentosum and Gossypium hirsutum
Authors: J.Y. Zheng, G. Oluoch, M.K. Riaz Khan, X.X. Wang, X.Y. Cai, Z.L. Zhou, C.Y. Wang, Y.H. Wang, X.Y. Li, F. Liu and K.B. Wang
Cotton is one of the most important natural fiber crops in the world. Its growth and yield is greatly limited by drought. A quantitative trait locus (QTL) analysis was therefore conducted to investigate the genetic basis of drought tolerance in cotton (Gossypium spp) using 188 F2:3 lines developed from an inter-specific cross between a wild cotton species.. Read More»
- Genet. Mol. Res. 15(3):
- gmr.15038477
- DOI:
- 10.4238/gmr.15038477
Cloning and quantitative expression analysis of drought-induced genes in soybean
Authors: R. Stolf-Moreira, M.E. Medri, N. Neumaier, N.G. Lemos, R.L. Brogin, F.C. Marcelino, M.C.N. de Oliveira, J.R.B. Farias, R.V. Abdelnoor and A.L. Nepomuceno
We determined the expression levels of DREB transcription factor (Gmdreb1) and of the genes Gmgols, Gmpip1b, Gmereb, and Gmdefensin in drought-tolerant (MG/BR46-Conquista) and drought-sensitive (BR16) genotypes of soybean, during drought. The trial was carried out in a controlled-environment chamber, set up to provide drought .. Read More»
- Genet. Mol. Res. 9(2):
- vol9-2gmr701
- DOI:
- 10.4238/vol9-2gmr701