Localising QTLs for leaf rust resistance and agronomic traits in barley (Hordeum vulgare L.)

Kicherer, S.; Backes, Gunter; Walther, Ursula; Jahoor, A.

doi:10.1007/s001220051365

Cited by 53 publications

(24 citation statements)

References 27 publications

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“…Qi et al (1998bQi et al ( , 1999Qi et al ( , 2000, Kicherer et al (2000), and Spaner et al (1998). Qi et al (1998bQi et al ( , 1999 consistently found QTLs for RLP: Rphq2, 3, and 4.…”

Section: Rust Resistancementioning

confidence: 78%

Linkage Disequilibrium Mapping of Morphological, Resistance, and Other Agronomically Relevant Traits in Modern Spring Barley Cultivars

et al. 2006

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A set of 148 modern spring barley cultivars was explored for the extent of linkage disequilibrium (LD) between genes governing traits and nearby marker alleles. Associations of agronomically relevant traits (days to heading, plant height), resistance traits (leaf rust, barley yellow dwarf virus (BYD)), and morphological traits (rachilla hair length, lodicule size) with AFLP markers and SSR markers were found. Known major genes and QTLs were confirmed, but also new putative QTLs were found. The LD mapping clearly indicated the common occurrence of Rph3, a gene for hypersensitivity resistance against Puccinia hordei, and also confirmed the QTL Rphq2 for prolonging latency period of P. hordei in seedlings. We also found strong indication for a hitherto not reported gene for resistance or tolerance to BYD on chromosome 2, linked to SSR marker HVM054. Our conclusion is that LD mapping is a valuable additional tool in the search for applicable marker associations with major genes and QTLs.

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“…Qi et al (1998bQi et al ( , 1999Qi et al ( , 2000, Kicherer et al (2000), and Spaner et al (1998). Qi et al (1998bQi et al ( , 1999 consistently found QTLs for RLP: Rphq2, 3, and 4.…”

Section: Rust Resistancementioning

confidence: 78%

Linkage Disequilibrium Mapping of Morphological, Resistance, and Other Agronomically Relevant Traits in Modern Spring Barley Cultivars

et al. 2006

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“…The larger the mapping population, the higher the confidence in the estimates of recombination frequencies, the more accurate the map distances, and the higher the chance of detecting QTLs with small effects and estimates of the gene effects [51]. However, the optimum size of mapping population depends on the genome size of the organism, the generation of mapping population, and the nature of the trait under study [52].…”

Section: Genetic Linkage Map Constructionmentioning

confidence: 99%

Construction of Genetic Linkage Map and QTL Analysis of Sink-Size Traits in Pearl Millet (Pennisetum glaucum)

Vengadessan¹,

Rai

Bapu

et al. 2013

ISRN Genetics

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A linkage map, primarily based on SSCP-SNP markers, was constructed using 188 F 2:3 mapping population progenies produced from a cross between two pearl millet inbred lines having diverse parentage. The skeleton linkage map covered 1019 cM and it comprised of 44 markers distributed across the seven linkage groups. Average adjacent-marker intervals ranged from 14 cM on LG1 to 38 cM on LG6, with an overall mean of 23 cM. Using the F 2 linkage map and phenotypic data from the F 2 and F 2:3 generations of the mapping population, a total of 18 putative QTLs were detected for the three sink-size components. Eight QTLs explained 42.7% of observed phenotypic variation for panicle length using the F 2:3 data set. For panicle diameter, 5 QTLs explained 45.8% of observed phenotypic variation. Similarly for grain size, 5 QTLs explained 29.6% of phenotypic variation. Genomic regions associated with panicle length, panicle diameter, and grain size were comapped on LG6 between Xpsms88 and Xpsms2270, indicating the existence of a gene or gene cluster. The QTLs for panicle length on LG2 and LG6 (LOD > 3 in both F 2 and F 2:3 data sets), for panicle diameter on LG2 and LG3 (LOD > 14 in the F 2:3 data set), and for grain size on LG3 and LG6 (LOD > 3 in both F 2 and F 2:3 data sets) were identified as promising candidates for validation prior to possible application in marker-assisted breeding.

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“…Although in many Eurepean barley cultivars, QTLs for PLH were detected on chromosome 3HL (Barua et al 1993, Thomas et al 1995, Bezant et al 1996, Yin et al 1999, Kicherer et al 2000, the QTLs were mapped near the denso (sdw1) locus, which is separated from the uzu1 locus by a distance of 40 cM. Denso gene, with a major effect on plant height, was detected in many European barley cultivars.…”

Section: Chromosome 3hmentioning

confidence: 99%

Quantitative Trait Loci Controlling Agronomic Traits in Recombinant Inbred Lines from a Cross of Oriental- and Occidental-type Barley Cultivars

2006

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A total of 99 recombinant inbred lines (RILs) generated from a cross between Oriental 'Azumamugi' and Occidental type 'Kanto Nakate Gold' of barley Hordeum vulgare L. cultivars were grown over a period of two years to identify quantitative trait loci (QTLs) controlling agronomic traits such as days to heading, spike characters (length, internode length, awn length and triplet number) and culm internode length. The RILs showed a wide range of variations for all the agronomic traits tested. Composite interval mapping (CIM) enabled to identify a new QTL with a major effect on rachis internode length on chromosome 2HL (qSIL.ak-2H) which was closely linked to the cleistogamy genes and Fusarium head blight resistance QTL. A new QTL for culm length was detected on chromosome 7HL (qCUL.ak-7H), which controlled the elongation, particularly that of the lower culm internodes. The dense spike 1 (dsp1) locus was precisely mapped on a molecular linkage map of chromosome 7HS. The dsp1 locus controlled only the lower culm internode length, while the uzu1 locus controlled the whole culm length. The positions of the QTLs detected in the present study were compared with those of previously reported genes.

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Localising QTLs for leaf rust resistance and agronomic traits in barley (Hordeum vulgare L.)

Cited by 53 publications

References 27 publications

Linkage Disequilibrium Mapping of Morphological, Resistance, and Other Agronomically Relevant Traits in Modern Spring Barley Cultivars

Linkage Disequilibrium Mapping of Morphological, Resistance, and Other Agronomically Relevant Traits in Modern Spring Barley Cultivars

Construction of Genetic Linkage Map and QTL Analysis of Sink-Size Traits in Pearl Millet (Pennisetum glaucum)

Quantitative Trait Loci Controlling Agronomic Traits in Recombinant Inbred Lines from a Cross of Oriental- and Occidental-type Barley Cultivars

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