Molecular mapping of gibberellin-responsive dwarfing genes in bread wheat

Ellis, Marc H.; Rebetzke, G. J.; Azanza, F.; Richards, R. A.; Spielmeyer, Wolfgang

doi:10.1007/s00122-005-2008-6

Cited by 213 publications

(174 citation statements)

References 14 publications

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“…Worland and Law (1985) reported that the distribution of GAinsensitive dwarfing genes (Rht-B1b and Rht-D1b) is restricted to areas where heat and drought stress condition prevails during grain filling. Ellis et al (2005) have suggested that both Rht-1 dwarfing alleles (Rht-B1b and Rht-D1b) also negatively affect the growth of young plants, but that this effect is not mirrored by Rht-8. Therefore, Rht-8 might be more suitable in reducing final plant height, without compromising early plant growth (Ellis et al, 2005).…”

Section: Biplot Analysismentioning

confidence: 99%

Genotype by Environment Interaction Effects on Plant Height of Wheat Genotypes Carrying RHT 8 Dwarfing Gene

Kaya

Morgounov

Keser³

2015

Turkish Journal of Field Crops

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Twenty-five bread wheat genotypes (G), carringIn this study, medium-tall Gs were favorable to rain-fed Es, due to the positive relationship between PH and grain yield. It has been suggested that ZAF01 (Bethlehem-South Africa) among 14 Es could be more suitable for phenotyping Gs for PH potential. In conclusion, Eastern European germplasm was able to adapt to almost all Es, whereas genotypes from NBWBPT were not. Therefore, the latter needs improving its adaptability to stressful Es.

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Section: Biplot Analysismentioning

confidence: 99%

Genotype by Environment Interaction Effects on Plant Height of Wheat Genotypes Carrying RHT 8 Dwarfing Gene

Kaya

Morgounov

Keser³

2015

Turkish Journal of Field Crops

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“…Molecular markers have been used extensively to incorporate qualitative and quantitative traits into new cultivars (Ellis et al, 2005). Rht genes have strong foundation in wheat; semi-dwarf alleles were important component of the green revolution, which helped avoid major worldwide food shortages (Wilhelm et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Microsatellites Based Genetic Linkage Map of the <i>Rht3</i> Locus in Bread Wheat

Navarro¹,

Yang²,

Mohan³

et al. 2014

mpb

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The wheat reduced height genes (Rht) played an important role in "The Green Revolution" by reducing damage due to lodging and making wheat more responsive to fertilizer applications. The successful use of cultivars containing Rht-B1b and Rht-D1b around the world compelled the scientist to identify and generate height mutants through induced mutation in wheat. There are manyRht genes known in wheat, however genetic and molecular characterization of many Rht genes are lacking. The Rht3 gene was originally found in the cultivar, Tom Thumb, and resulted in 46% reduction in plant height compared to the wild type allele, rht3. The objectives of our investigation were to identify SSR markers linked to Rht3 and to develop a genetic linkage map of the region containing the Rht3 gene. The Rht3 gene was located on chromosome 4B using bulked segregant analysis. Genetic linkage mapping using an F2 population placed Rht3 between markers wmc125 and gwm149 with a genetic distance of 14.4 cM and 23.6 cM, respectively. Identification of SSR markers associated with Rht3 may help breeders to more efficient screen for reduced height genes in breeding programs with diverse environmental conditions.

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“…Some of these genes have been *Corresponding authors (email: penghuiru@cau.edu.cn; qxsun@cau.edu.cn) exploited to breed many semidwarf cultivars with high yield potential. Recently, along with the advent of molecular quantitative genetics, about 50 quantitative trait loci (QTLs) for wheat plant height have been identified using the constructed molecular genetic linkage maps [3][4][5][6][7][8][9][10][11][12][13][14][15]. However, QTL mapping of plant height in wheat was only focused on the performance of this trait at the maturing stage.…”

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confidence: 99%

Molecular dissection of plant height QTLs using recombinant inbred lines from hybrids between common wheat (Triticum aestivum L.) and spelt wheat (Triticum spelta L.)

Liu

et al. 2011

Chin. Sci. Bull.

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In wheat, plant height is an important agronomic trait, and a number of quantitative trait loci (QTLs) controlling plant height have been located. In this study, using the conditional and unconditional QTL mapping methods, combined with data from five different growth stages over two years of field trials, the developmental behavior for plant height in wheat was dissected. Nine unconditional QTLs and 8 conditional QTLs were identified, of which 6 were detected by both methods. None of the 11 QTLs was detected at all of the 5 investigated developmental stages, but 7 QTLs were detected at certain stages in both years. Further analysis identified 9 unconditional QTLs at different stages, which could explain the phenotypic variation from 4.81% to 17.35%. It was noteworthy that one major QTL designated QHt-4B-2, which was located on chromosome 4B, was detected on May 18 and 25 in both years, and its genetic contributions to plant height ranged from 13.42% to 16.13%. Moreover, of the 8 conditional QTLs identified, six were detected in both years, in the order of QHt-3B→QHt-4B-1→QHt-4B-2→QHt-4D→QHt-5A and QHt-2B expressed at the same developmental stage. The results indicate that QTL expression during plant height development is selective and in a temporal order. As one of the most important agronomic traits in wheat breeding, plant height plays a vital role in producing plants with high lodging resistance and high harvest index. For example, the dwarfism gene from Nonglin-10, which was widely used in classical wheat breeding programs, contributed significantly to the green revolution in the 1960s [1]. Until now, dwarfism breeding has been important in increasing the yield of wheat all over the world. Genetic analysis of plant height has been carried out by many researchers, and more than 20 dwarfism genes have been identified in wheat [2]. Some of these genes have been *Corresponding authors (email: penghuiru@cau.edu.cn; qxsun@cau.edu.cn) exploited to breed many semidwarf cultivars with high yield potential. Recently, along with the advent of molecular quantitative genetics, about 50 quantitative trait loci (QTLs) for wheat plant height have been identified using the constructed molecular genetic linkage maps [3][4][5][6][7][8][9][10][11][12][13][14][15]. However, QTL mapping of plant height in wheat was only focused on the performance of this trait at the maturing stage.Conventional statistical genetic analysis revealed that gene expression patterns were distinct at different developmental stages, and the genetic model for the final character did not fully reflect the true gene expression pattern during formation of the character [16][17][18][19][20][21][22]. Therefore it is necessary to conduct dynamic mapping of plant height at a variety of

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Molecular mapping of gibberellin-responsive dwarfing genes in bread wheat

Cited by 213 publications

References 14 publications

Genotype by Environment Interaction Effects on Plant Height of Wheat Genotypes Carrying RHT 8 Dwarfing Gene

Genotype by Environment Interaction Effects on Plant Height of Wheat Genotypes Carrying RHT 8 Dwarfing Gene

Microsatellites Based Genetic Linkage Map of the <i>Rht3</i> Locus in Bread Wheat

Molecular dissection of plant height QTLs using recombinant inbred lines from hybrids between common wheat (Triticum aestivum L.) and spelt wheat (Triticum spelta L.)

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