Genetic analysis of salt tolerance in a recombinant inbred population of wheat (Triticum aestivum L.)

Ma, Liqing; Zhou, Erfeng; Huo, Naxing; Zhou, Ronghua; Wang, Guoying; Jia, Jizeng

doi:10.1007/s10681-006-9247-8

Cited by 92 publications

(70 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, proline content in plant tissues was used as a marker-assisted selection molecule in some breeding programs that endeavored to improve salinity and drought tolerance in plants (Flowers and Flowers, 2005;Ma et al, 2007;Ashraf and Foolad, 2013;Wu et al, 2013). In the present study, I determined whether proline accumulation in the date palm tree was specifically correlated to drought, and high salinity conditions, or was a general response to abiotic stresses.…”

Section: Introductionmentioning

confidence: 97%

Short Communication Proline accumulation is a general response to abiotic stress in the date palm tree (Phoenix dactylifera L.)

Yaish¹

2015

Genet. Mol. Res.

View full text Add to dashboard Cite

ABSTRACT. Plants exposed to certain abiotic stress conditions tend to produce the amino acid proline, which acts as an active osmolyte, a metal chelator, an antioxidant, and a signaling molecule. There is increasing evidence that proline accumulates in plants due to a wide range of abiotic stress, in particular high soil salinity and drought. Therefore, proline content is often used as a marker-assisted breeding tool aimed at improving drought and salinity tolerance. In this study, it was investigated whether proline accumulation in date palm (Phoenix dactylifera L.) seedlings occurs solely due to high salinity and drought stresses or due to other unspecified abiotic stresses, including salinity and salinity shock, drought, extreme temperatures, and abscisic acid. The free proline assays revealed that this amino acid over-accumulated in the roots and leaves of each stresstreated plant, and was remarkably high when leaves were exposed to suboptimum temperatures and salinity stress. These results indicate that the production of proline is a common response to various abiotic stresses and its differential accumulation cannot be used as a molecular marker in date palm breeding programs aimed at improving drought or salinity 9943-9950 (2015) tolerance traits in date palms. This conclusion is consistent with the theory that the molecular outcomes of abiotic stresses are often non-specific.

show abstract

Section: Introductionmentioning

confidence: 97%

Short Communication Proline accumulation is a general response to abiotic stress in the date palm tree (Phoenix dactylifera L.)

Yaish¹

2015

Genet. Mol. Res.

View full text Add to dashboard Cite

show abstract

“…However, during the last decade microsatellites or SSR markers have been extensively used for genetic diversity study, genome mapping, varietal identification, etc. Utilization of these markers to investigate the genetic variations and QTL mapping for salt tolerance in different cultivars has been previously reported by some researchers (Liu et al, 2001;Munns, 2002;Ma et al, 2007;Kurup et al, 2009). The potential of these markers to investigate genetic diversity for salinity tolerance in Pakistani wheat landrace genotypes/cultivars is very limited.…”

Section: Introductionmentioning

confidence: 98%

Evaluation of wheat landrace genotypes for salinity tolerance at vegetative stage by using morphological and molecular markers

Shahzad¹,

Ahmad²,

Iqbal³

et al. 2012

Genet. Mol. Res.

View full text Add to dashboard Cite

ABSTRACT. Identification of new sources of salt tolerance is particularly important to develop crop varieties suitable for saline soils. We evaluated 129 Pakistani and 58 exotic wheat landraces/ cultivars grown in Hoagland's hydroponic nutrient solution, under control (tap water equivalent to 10 mM salt) and salt stress (200 mM NaCl) conditions. Forty-four genotypes were also tested under 250 mM NaCl stress. High heritability and positive correlations suggested that number of tillers per plant, root length, root fresh and dry weights, and shoot fresh and dry weights are associated with salt tolerance and could be used as selection criteria. SSR markers revealed high genetic variation in the wheat genotypes. Twelve SSR markers (cfd 1, cfd 9, cfd 18, cfd 46, cfd 49, cfd 183, wmc 11, wmc 17, wmc 18, wmc 154, wmc 432, and wmc 503) were found to be associated with salt tolerance because they were amplified in tolerant genotypes only. Five markers, cfd 9, cfd 18, cfd 183, wmc 96, and wmc 405, were identified as most suitable to evaluate salt tolerance because they were associated with four or more salt tolerance traits studied. Cultivars Pasban 90, accessions 10790, 10828, 10823, and 4098805 from Pakistan and Sakha-92 from Egypt performed best at both stress levels.

show abstract

“…Usually, QTL analysis in saline hydroponics reports several chromosomes associated with ST (eg. Ma et al 2007), while QTLs on chromosomes 5B and 5D were identified in a field experiment with saline irrigation (Quarrie et al 2005). The Kna1 gene was identified on chromosome 4D controlling Na + and K + accumulation in the shoot (Dubcovsky et al 1996).…”

mentioning

confidence: 99%

Salinity tolerance and Na<sup>+</sup> exclusion in wheat: variability, genetics, mapping populations and QTL analysis

Shavrukov¹,

Shamaya²,

Baho³

et al. 2011

CZECH J GENET PLANT

View full text Add to dashboard Cite

A wide range of variability in both Na + exclusion and salinity tolerance was shown in Triticum dicoccoides and the best performing genotype, from Getit, was identified for further study and for crossing. In bread wheat, plants BC 6 F 1 from the cross Chinese Spring/line SQ1 showed less variability, but the line 1868 was identified as a potential source of tissue tolerance to salinity. Two Afghani durum landraces were identified among 179 screened, with approximately 50% lower Na + accumulation in shoots. Genetic analysis of F 2 progenies between landraces and durum wheat showed clear segregation indicating on the single, major salinity tolerance gene in the landraces. Further genetic and molecular analysis of the candidate gene and its localization is in the progress. QTL analysis of two non-pedigree related mapping populations of bread wheat, Cranbrook × Halberd and Excalibur × Kukri, showed one QTL in each population on the same region of chromosome 7AS, independent of year or growing conditions (both supported hydroponics and field trials), and a novel gene is expected to be associated with this QTL.

show abstract

Genetic analysis of salt tolerance in a recombinant inbred population of wheat (Triticum aestivum L.)

Cited by 92 publications

References 39 publications

Short Communication Proline accumulation is a general response to abiotic stress in the date palm tree (Phoenix dactylifera L.)

Short Communication Proline accumulation is a general response to abiotic stress in the date palm tree (Phoenix dactylifera L.)

Evaluation of wheat landrace genotypes for salinity tolerance at vegetative stage by using morphological and molecular markers

Salinity tolerance and Na<sup>+</sup> exclusion in wheat: variability, genetics, mapping populations and QTL analysis

Contact Info

Product

Resources

About