Quantitative trait loci for yield and related traits in the wheat population Ning7840 × Clark

Marza, Félix; Bai, Guihua; Carver, Brett F.; Zhou, Wenxuan

doi:10.1007/s00122-005-0172-3

Cited by 215 publications

(185 citation statements)

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“…Comparative analysis with the known major QTL for yield in wheat: A survey of the literature reporting QTL for GY and related agronomic traits in both tetraploid and hexaploid wheat (Li et al 2002;Peng et al 2003;Elouafi and Nachit 2004;Huang et al 2004Huang et al , 2006McCartney et al 2005;Quarrie et al 2005Quarrie et al , 2007Marza et al 2006;Narasimhamoorthy et al 2006;Kuchel et al 2007;Kumar et al 2007;Ma et al 2007) revealed rather different scenarios for the two major GY QTL identified in our study. Our comparative analysis was carried out by relating the (LOD À 1) supporting interval of the QTL to the Ta-SSR-2004 consensus map (Somers et al 2004).…”

Section: Discussionmentioning

confidence: 99%

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Quantitative Trait Loci for Grain Yield and Adaptation of Durum Wheat (Triticum durum Desf.) Across a Wide Range of Water Availability

et al. 2008

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Grain yield is a major goal for the improvement of durum wheat, particularly in drought-prone areas. In this study, the genetic basis of grain yield (GY), heading date (HD), and plant height (PH) was investigated in a durum wheat population of 249 recombinant inbred lines evaluated in 16 environments (10 rainfed and 6 irrigated) characterized by a broad range of water availability and GY (from 5.6 to 58.8 q ha À1 ). Among the 16 quantitative trait loci (QTL) that affected GY, two major QTL on chromosomes 2BL and 3BS showed significant effects in 8 and 7 environments, with R 2 values of 21.5 and 13.8% (mean data of all 16 environments), respectively. In both cases, extensive overlap was observed between the LOD profiles of GY and PH, but not with those for HD. QTL specific for PH were identified on chromosomes 1BS, 3AL, and 7AS. Additionally, three major QTL for HD on chromosomes 2AS, 2BL, and 7BS showed limited or no effects on GY. For both PH and GY, notable epistasis between the chromosome 2BL and 3BS QTL was detected across several environments.

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Section: Discussionmentioning

confidence: 99%

“…QTL for GY and PH have been assigned to the proximal region of chr. 2BL (Bö rner et al 2002;Marza et al 2006), and QTL for GY, kernel weight, and number of kernels per spike have been reported on chr. 2AL (Bö rner et al 2002;Peng et al 2003;Huang et al 2004;McCartney et al 2005), but not in the distal region.…”

Section: Discussionmentioning

confidence: 99%

Quantitative Trait Loci for Grain Yield and Adaptation of Durum Wheat (Triticum durum Desf.) Across a Wide Range of Water Availability

et al. 2008

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“…For shortening the breeding cycle, the single seed descent technique (SSD) in combination with in vitro culture of immature embryos may be an alternative to the DH system. Currently, SSD populations are frequently used as alternatives to DH populations in genetic and genomic studies (see, for example, [12,13]). The SSD technique connected with embryo in vitro culture allows the attainment of homozygous lines in a relatively short time.…”

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Preliminary results of in vitro culture of pea and lupin embryos for the reduction of generation cycles in single seed descent technique

et al. 2013

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Pea and lupin plants have been potentially rich sources of protein for human and animal diets. Currently, in Poland the main source of protein is soya cake, imported to Poland in amount of 2 mln tons per year. For substitution of soya with domestic protein plants breeding methods for higher and stable yield of grain legumes should be developed. About 12 generations are needed to develop a new cultivar and under central or north European climate conditions only one generation per year is feasible in the field. For that reason the development of new tools is needed to accelerate obtaining homozygosity in breeding of pea and lupins. Homozygosity can be attained by selfing successive generations or by hapoidization of hybrids using different in vitro techniques and doubling chromosomes in haploid plants (for review see, e.g., [1][2][3]). Pisum and Lupinus species are known to be recalcitrant to in vitro culture [4][5][6][7]. In spite of numerous studies focused on the production of doubled haploids (DH), no important results have been noted to date [8][9][10][11]. For shortening the breeding cycle, the single seed descent technique (SSD) in combination with in vitro culture of immature embryos may be an alternative to the DH system. Currently, SSD populations are frequently used as alternatives to DH populations in genetic and genomic studies (see, for example, [12,13]). The SSD technique connected with embryo in vitro culture allows the attainment of homozygous lines in a relatively short time. Such an approach applied to the development of winter barley SSD lines enabled the shortening of the generation cycle to ca. 4 months (including verbalization) [14]. Ochatt et al. [15] proposed the reduction of pea generation cycles based on in vitro culture of embryos and a greenhouse strategy, but no information was found on embryo culture for accelerating breeding process in lupins.The aim of the present studies was to establish in vitro conditions for the culture of pea, and narrow-leafed and yellow lupin embryos as the first step in research aimed at shortening generation cycles in the SSD technique used to accelerate the development of homozygous populations. Material and methodsMaterial for the studies consisted of two pea cultivars (Pisum sativum L.) -Cysterski and Akord, two narrow-leafed lupin cultivars (Lupinus angustifolius L.) -Kadryl and Sonet, and two yellow lupin cultivars (L. luteus L.) -Mister and Taper. Pea and lupin cultivar seeds were sown in the experimental field at Wiatrowo near Poznań. Pods from each pea and lupin cultivar were detached 21-28 days after flowering, when seeds were still-green but fully developed. Seeds taken out of pods were sterilized by successive dips into ethanol 70% (3 min) and AbstractThe aim of the studies was to establish in vitro conditions for the culture of pea and lupin embryos as the first step in the development of an in vitro assisted single seed descent technique for the attainment of homozygous populations. Materials for the study included of pea, and narrow-leafed a...

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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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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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Quantitative trait loci for yield and related traits in the wheat population Ning7840 × Clark

Cited by 215 publications

References 32 publications

Quantitative Trait Loci for Grain Yield and Adaptation of Durum Wheat (Triticum durum Desf.) Across a Wide Range of Water Availability

Quantitative Trait Loci for Grain Yield and Adaptation of Durum Wheat (Triticum durum Desf.) Across a Wide Range of Water Availability

Preliminary results of in vitro culture of pea and lupin embryos for the reduction of generation cycles in single seed descent technique

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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