Association mapping of salt tolerance in barley (Hordeum vulgare L.)

Long, Nguyen Viet; Dolstra, O.; Malosetti, Marcos; Kilian, Benjamin; Graner, Andreas; Visser, Richard G. F.; Linden, C. Gerard van der

doi:10.1007/s00122-013-2139-0

Cited by 125 publications

(118 citation statements)

References 81 publications

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“…The QTLs located on 4H (4.61 cM) and 6H (11.97 cM) had positive effect under 1000 ppm conditions. These results are close to those obtained by Long et al (2013) where they detected five QTLs associated with chlorophyll contents on chromosomes 1H (31.cM), 5H (6.4 cM), 6H (45.4 and 60.2 cM) and 7H (4.9 cM). In addition, they reported that genomic region on chromosome 6H strongly influenced ST as well as chlorophyll content.…”

Section: Rwc and CCsupporting

confidence: 90%

“…Furthermore, the latter QTL explained 25.67% of the genetic variance in 7H (125.4 cM), while the other QTLs had negative main effect. These results are in harmony with those obtained by Long et al (2013) where they detected QTLs for Na + , K + content on chromosome 4H and 7H. Shavrukov et al (2010) detected a QTL for Na + , K + and Na + /K + ratio locates near the center of chromosome 7H and this might be related to the HvNax3 locus.…”

Section: Nasupporting

confidence: 87%

“…The proportion of the genetic variance, which is explained by the marker main effect were ranged from 9.3 % to 16%, whereas the detected QTLs had positive main effects and led to improve this trait except the QTLs located on 1H (67.88 cM) and 7H (89.81 cM) under control and 1000 ppm conditions, respectively had the main negative effects (Table 3). Long et al (2013) detected several QTLs affecting straw growth and related traits under both stress and non-stress conditions. Zarre & Jafary (2013) found QTL associated with shoot length on chromosome 2H (115-140 cM).…”

Section: The Detected Qtlsmentioning

confidence: 99%

“…The maximum and the minimum of the explained genetic variance were found at 70.57 cM on 6H (8.02%) and 156.85 cM on 2H (11.94%). Long et al (2013) identified QTL associated with Na+ on chromosome 7H (83.4 cM). This is the same region which we detected 7H (82.…”

Section: Namentioning

confidence: 99%

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Association Mapping For Salinity Tolerance Related Traits in a Structured Barley Population

2015

Egypt. J. Agron.

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STRUCTURED barley population of 103 wild barley accession ……and 19 spring barley cultivars was used to identify quantitative trait loci (QTLs) for salt tolerance traits by means of an association mapping approach using 660 DArT markers. In this investigation barley accession and spring barley cultivars were employed in a twoyear greenhouse project having a completely randomized design involving four irrigation water treatments having different salinities and twice replicated. Measurement parameters included grain yield per plant, straw weight, relative water content, chlorophyll content, Na + , K + and salt tolerance %. Several statistical models were compared, the K-model was less spurious background associations, in this model 61 QTLs were detected under both of control and salt stress conditions (1000, 3000 and 5000 ppm NaCl of water irrigation) over whole barley genome for yield, straw weight, relative water content, chlorophyll content , Na + , K + and salt tolerance %. Among of these QTLs, 21 detected under control, phenotypic variations explained by these QTLs, were ranged from 8.02 in N+ to 25.67% of the total variation in K + . 40 QTLs were identified under saline conditions and the phenotypic variation explained by each main effect QTLs (M-QTL) ranged from 4.65 % in chlorophyll content at 3000 ppm condition to 28.13 % in ST at 5000 ppm condition. The genomic regions that harbor QTLs for Na + , salt tolerance and related traits on chromosome 1H, 2H and 7H in our study can be used for targeting candidate gene (s) for salt tolerance of barley.

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Section: Rwc and CCsupporting

confidence: 90%

Section: Nasupporting

confidence: 87%

Section: The Detected Qtlsmentioning

confidence: 99%

Section: Namentioning

confidence: 99%

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Association Mapping For Salinity Tolerance Related Traits in a Structured Barley Population

2015

Egypt. J. Agron.

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“…QTL-QY4 at 4H was also co-located with a MQTL for salt tolerance, strengthening this further. QTL-QY5, with a LOD peak value of 55 cM, is located close to a QTL controlling salt tolerance found by Long et al (2013) that co-localised with biomass growth, chlorophyll content and leaf senescence. They used association mapping of 192 barley cultivars from all over the world, including 92 cultivars from Europe.…”

Section: Discussionmentioning

confidence: 79%

QTL for chlorophyll fluorescence of barley plants grown at low oxygen concentration in hydroponics to simulate waterlogging

Bertholdsson

Holefors²,

Macaulay

et al. 2014

Euphytica

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Waterlogging is a major factor limiting barley grain yield worldwide. Climate change will likely increase this water stress in Northern Europe. Breeding for waterlogging tolerance (WLT), as for other abiotic stresses, is difficult, but identification of genetic markers linked to genes affecting WLT could facilitate the breeding process. To identify a suitable marker population, parents of 14 double-haploid (DH) barley populations were tested for segregation of biomass growth reduction in waterlogged soil. The most interesting was found in the offspring from crossing cv. Psaknon and breeding line (SLUdt1398 9 Mona 4 ). Hence, 120 DH-lines derived from this cross were phenotyped for the chlorophyll fluorescence parameter quantum yield (QY) of electron transport of PSII from leaves of hypoxia-stressed plants and further genotyped with 384-SNP Illumina GoldenGate Bead Array. Five quantitative trait loci (QTL) for QY, with a narrow sense heritability of 0.87, were identified on chromosomes 4, 6 and 7H. They had additive effects ranging from 0.74 to 1.35 % with LOD scores from 3 to 12 and explained variance from 6 to 29 %. The major alleles for high QY were from cv. Psaknon; i.e., QY was low if the alleles from cv. Psaknon were not present. Based on leaf necrosis and residual biomass data, the four most interesting QTL may be also in two other populations with completely different progeny, which shows a certain stability of these QTL. The possibility of using marker assistant selection for WLT is discussed, as is possible concurrent improvement of drought tolerance and grain yield.

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Opportunities for Developing Salt‐tolerant Wheat and Barley Varieties

Asif

Pearson

Schilling

et al. 2019

Annual Plant Reviews Online

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Salinity is a major constraint limiting crop yields around the world. While considerable research to understand and enhance the salinity tolerance of plants has occurred, few commercially available salt‐tolerant bread wheat ( Triticum aestivum ), durum wheat ( Triticum durum ), or barley ( Hordeum vulgare ) varieties have been developed for farmers. This lack of salt‐tolerant varieties is despite all publications highlighting issues around global food security, the need to increase crop production to feed an increasing human population, the effects of more variable climate and farmland being degraded by abiotic stresses. We explore the progress to date in using forward and reverse genetic approaches to identify loci and candidate genes linked to plant salinity‐tolerance sub‐traits, and why, despite substantial research in understanding salt tolerance mechanisms, very few genes or loci have been introduced into commercially available varieties. We propose the need for a greater focus on validating glasshouse‐based findings of salt tolerance in saline fields, the fine mapping of quantitative trait loci linked to salt‐tolerance sub‐traits to underlying genes, and the use of marker‐assisted selection and speed breeding to pyramid beneficial salinity‐tolerance sub‐traits to develop high‐yielding bread wheat, durum wheat, and barley varieties.

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Association mapping of salt tolerance in barley (Hordeum vulgare L.)

Cited by 125 publications

References 81 publications

Association Mapping For Salinity Tolerance Related Traits in a Structured Barley Population

Association Mapping For Salinity Tolerance Related Traits in a Structured Barley Population

QTL for chlorophyll fluorescence of barley plants grown at low oxygen concentration in hydroponics to simulate waterlogging

Opportunities for Developing Salt‐tolerant Wheat and Barley Varieties

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