Mapping physiological traits in barley

Ellis, R. P.; Forster, B. P.; Waugh, Robbie; Bonar, N.; Handley, Linda L.; Robinson, David; Gordon, D. C.; Powell, W.

doi:10.1046/j.1469-8137.1997.00822.x

Cited by 58 publications

(17 citation statements)

References 20 publications

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“…Nevertheless, the high root growth found in lines containing the 4H chromosome of barley, irrespective of the parents, indicated the presence of quantitative trait loci (QTL) for root elongation on chromosomes 4H. A similar association was found previously by Raman et al [19], Jefferies et al [28] and Ellis et al [29] under different stress conditions. When evaluating the Al tolerance level of these introgression lines and parental genotypes, similar results were found by monitoring root growth and by the haematoxylin test.…”

Section: Discussionsupporting

confidence: 66%

Characterization of Newly Developed Wheat/Barley Introgression Lines in Respect of Aluminium Tolerance

Darkó¹,

Barnabás²,

Molnár-Láng³

2012

AJPS

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The Al tolerance of newly developed wheat/barley disomic addition, substitution and translocation lines carry chromosomes of three different barley cultivars was evaluated by comparing the root growth in solution containing 75 μM AlCl 3 at pH 4.0 to that of known Al-tolerant and sensitive wheat genotypes. The wheat Asakaze komugi, barley Manas cultivars and their hybrid derivatives were found to have high levels of Al tolerance. The wheat line Mv9kr1, barley cultivar Igri and progenies of the hybrids were sensitive to Al. In most cases, the Al tolerance of the wheat/barley introgression lines derived from Al-sensitive wheat Mv9kr1 and barley Betzes with moderate Al tolerance was similar to that of the wheat parents, but the 2DS.2DL-1HS translocation line of Mv9kr1/Betzes exhibited more intensive root growth, while accumulating less Al than the parental lines. This indicates that either the lack of the distal part of chromosome 2DL or the presence of the distal part of 1HS improved the Al tolerance level.

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Section: Discussionsupporting

confidence: 66%

Characterization of Newly Developed Wheat/Barley Introgression Lines in Respect of Aluminium Tolerance

Darkó¹,

Barnabás²,

Molnár-Láng³

2012

AJPS

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“…At the vegetative stage, QTLs for salt tolerance in barley were found on chromosomes on group 1, 4, 6 and 7 (Ellis et al 1997). A later study by Ellis et al (2002) with different barley parents reported QTLs for salt tolerance at the vegetative stage on chromosomes 2, 5 and 7.…”

Section: Discussionmentioning

confidence: 96%

A locus for sodium exclusion (Nax1), a trait for salt tolerance, mapped in durum wheat

Lindsay

Lagudah

Hare

et al. 2004

Functional Plant Biol.

204

123

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Abstract. Salinity affects durum wheat [Triticum turgidum L. ssp. durum (Desf.)] more than it affects bread wheat (Triticum aestivum L.), and results in lower yield for durum wheat cultivars grown on salt-affected soils. A novel source of salt tolerance in the form of a sodium exclusion trait, identified previously in a screen of tetraploid wheat germplasm, was mapped using a QTL approach. The trait, measured as low Na + concentration in the leaf blade, was mapped on a population derived from a cross between the low Na + landrace and the cultivar Tamaroi. The use of AFLP, RFLP and microsatellite markers identified a locus, named Nax1 (Na exclusion), on chromosome 2AL, which accounted for approximately 38% of the phenotypic variation in the mapping population. Markers linked to the Nax1 locus also associated closely with low Na + progeny in a genetically unrelated population. A microsatellite marker closely linked to the Nax1 locus was validated in genetically diverse backgrounds, and proven to be useful for marker-assisted selection in a durum wheat breeding program.

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“…The first quantitative trait loci (QTL) identified for D 13 C was reported in tomato (Lycopersicon esculentum and L. pennellii) by Martin and Nienhuis (1989) and subsequently QTL for D 13 C have been reported in Arabidopsis thaliana Juenger et al 2005), barley (grain) (Teulat et al 2002), cotton (Gossypium hirsutum and G. barbadense) (Saranga et al 2001), rice (Oryza sativa L.) (Laza et al 2006;Takai et al 2006;This et al 2010;Xu et al 2009), soybean (Glycine max L.) (Specht et al 2001) and bread wheat (Triticum aestivum L.) (Rebetzke et al 2008). Ellis et al (1997) discovered several AFLP (amplified fragment length polymorphisms) markers associated with wholeshoot D 13 C of barley measured on 57 doubled haploids (DHs) from a cross between H. vulgare L. cv Lina and H. vulgare ssp. spontaneum HS92 in a hydroponic system under controlled and salt-stress conditions.…”

Section: Introductionmentioning

confidence: 99%

Quantitative trait loci for water-use efficiency in barley (Hordeum vulgare L.) measured by carbon isotope discrimination under rain-fed conditions on the Canadian Prairies

2012

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Barley (Hordeum vulgare L.) yield is commonly limited by low rainfall and high temperature during the growing season on the Canadian Prairies. Empirical knowledge suggests that carbon isotope discrimination (Δ(13)C), through its negative relationship with water-use efficiency (WUE), is a good index for selecting stable yielding crops in some rain-fed environments. Identification of quantitative trait loci (QTL) and linked markers for Δ(13)C will enhance its use efficiency in breeding programs. In the present study, two barley populations (W89001002003 × I60049 or W × I, six-row type, and Merit × H93174006 or M × H, two-row type), containing 200 and 127 recombinant inbred lines (RILs), were phenotyped for leaf Δ(13)C and agronomic traits under rain-fed environments in Alberta, Canada. A transgressive segregation pattern for leaf Δ(13)C was observed among RILs. The broad-sense heritability (H (2)) of leaf Δ(13)C was 0.8, and there was no significant interaction between genotype and environment for leaf Δ(13)C in the W × I RILs. A total of 12 QTL for leaf Δ(13)C were detected in the W × I RILs and 5 QTL in the M × H RILs. For the W × I RILs, a major QTL located on chromosome 3H near marker Bmag606 (9.3, 9.4 and 10.7 cM interval) was identified. This major QTL overlapped with several agronomic traits, with W89001002003 alleles favoring lower leaf Δ(13)C, increased plant height, and reduced leaf area index, grain yield, harvest index and days to maturity at this locus or loci. This major QTL and its associated marker, when validated, maybe useful in breeding programs aimed at improving WUE and yield stability of barley on the Canadian Prairies.

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Mapping physiological traits in barley

Cited by 58 publications

References 20 publications

Characterization of Newly Developed Wheat/Barley Introgression Lines in Respect of Aluminium Tolerance

Characterization of Newly Developed Wheat/Barley Introgression Lines in Respect of Aluminium Tolerance

A locus for sodium exclusion (Nax1), a trait for salt tolerance, mapped in durum wheat

Quantitative trait loci for water-use efficiency in barley (Hordeum vulgare L.) measured by carbon isotope discrimination under rain-fed conditions on the Canadian Prairies

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