Genetic relationship between lodging and lodging components in barley (Hordeum vulgare) based on unconditional and conditional quantitative trait locus analyses

Chen, W Y; Liu, Z M; Deng, Guangbing; Pan, Zhifen; Liang, Jinsong; Zeng, Xiuli; Tashi, Nyima; Long, Hai; Yu, Maoqun

doi:10.4238/2014.march.17.19

Cited by 19 publications

(10 citation statements)

References 39 publications

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“…Co-localization of these QTLs may be due to pleiotropy or linkage (Li et al, 2015b). Six QTLs with pleiotropic effects were found between markers Bmag353 and GBM1482 on chromosome 4H in barley (Chen et al, 2014). These results show that there was at least partial genetic overlap between K, Mg, and Ca concentrations in the RIL population, which is similar to co-localizations of QTLs for functional components.…”

Section: Qtl Detection and Pleiotropy For Eight Element Concentrationsupporting

confidence: 64%

Identification of quantitative trait loci for mineral elements in grains and grass powder of barley

Zeng¹,

Du²,

Yang³

et al. 2016

Genet. Mol. Res.

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ABSTRACT. Mineral elements in barley (Hordeum vulgare) play an important physiological role in global human health. In this study, quantitative trait loci (QTLs) for concentration of nine mineral elements in barley grain and grass powder were detected in a population of 193 recombinant inbred lines of the barley cross Ziguangmangluoerling x Schooner and the parents. We observed large genetic variation contributing to element concentrations in both grains and grass powder. The mean K, Ca, and Fe concentrations in grass powder were 6.67, 12.00, and 4.58 times that of regenerating barley grains. In grains, 17 2 Y.W. Zeng et al. Genetics and Molecular Research 15 (4): gmr15049103QTLs that accounted for 6.36-64.08% of the phenotypic variation in Zn, Mg, Ca, K, Na, Mn, Fe, and P concentrations were identified. In grass powder, seven QTLs were identified; these accounted for 6.03-21.86% of the variation in Ca, Zn, Mg, K, Fe, and Cu concentrations. These QTLs affecting elements in grain and grass powder are so far unreported in barley. To our knowledge, QTLs with pleiotropic effects for three elements were also identified for the first time in barley. The qK1/qMg1/qCa1 region between markers Bmag0211 and GBMS0014 on chromosome 1H was shown to have large additive effects for Mg, Ca, and K concentrations in grains. These additive effects indicated that the high element (Mg, Ca, Zn, Mn, and K) alleles were contributed by Ziguangmangluoerling. These results will further our understanding of the genetic basis of mineral elements and help us develop markers linked with mineral elements for marker-assisted selection breeding in barley.

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Section: Qtl Detection and Pleiotropy For Eight Element Concentrationsupporting

confidence: 64%

Identification of quantitative trait loci for mineral elements in grains and grass powder of barley

Zeng¹,

Du²,

Yang³

et al. 2016

Genet. Mol. Res.

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“…Resistance to lodging depends on morphological, physiological, and biochemical traits and is related to stem strength, plant height, wall thickness, lignin content, and center of gravity (Kong et al, 2013; Chen et al, 2014; Ookawa et al, 2014). Lodging resistance (LR) and lodging resistance index (LRI) are closely associated with the actual lodging score at the field level (Islam et al, 2007).…”

Section: Discussionmentioning

confidence: 99%

Optimization of Nitrogen Rate and Planting Density for Improving Yield, Nitrogen Use Efficiency, and Lodging Resistance in Oilseed Rape

et al. 2017

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Yield and lodging related traits are essential for improving rapeseed production. The objective of the present study was to investigate the influence of plant density (D) and nitrogen (N) rates on morphological and physiological traits related to yield and lodging in rapeseed. We evaluated Huayouza 9 for two consecutive growing seasons (2014–2016) under three plant densities (LD, 10 plants m−2; MD, 30 plants m−2; HD, 60 plants m−2) and four N rates (0, 60, 120, and 180 kg ha−1). Experiment was laid out in split plot design using density as a main factor and N as sub-plot factor with three replications each. Seed yield was increased by increasing density and N rate, reaching a peak at HD with 180 kg N ha−1. The effect of N rate was consistently positive in increasing the plant height, pod area index, 1,000 seed weight, shoot and root dry weights, and root neck diameter, reaching a peak at 180 kg N ha−1. Plant height was decreased by increasing D, whereas the maximum radiation interception (~80%) and net photosynthetic rate were recorded at MD at highest N. Lodging resistance and nitrogen use efficiency significantly increased with increasing D from 10 to 30 plants m−2, and N rate up to 120 kg ha−1, further increase of D and N decreased lodging resistance and NUE. Hence, our study implies that planting density 30 plants m−2 can improve yield, nitrogen use efficiency, and enhance lodging resistance by improving crop canopy.

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“…, Chen et al . ), and reducing it has been one of the main objectives of the Spanish barley breeding programme (Mansour et al . ).…”

Section: Discussionmentioning

confidence: 99%

The role of nest‐site selection and cereal production in differential nest predation in Common Quail Coturnix coturnix and hybrid quail C. coturnix × C. japonica

Capdevila

Puigcerver

López

et al. 2016

Ibis

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In Europe, farm‐reared quail used for restocking purposes are often hybrids between the Common Quail Coturnix coturnix and the Japanese Quail Coturnix japonica. These hybrids interbreed with wild Common Quail populations and suffer higher rates of nest predation, which would suggest that the two quail types have different nest‐site selection patterns. We monitored 103 radiotagged nesting females (77 wild Common Quail over 18 breeding seasons and 26 hybrid quail over six breeding seasons) and analysed their nest placement behaviour. Our results did not provide any evidence that the quail types showed different nest‐site selection trends, as they all preferred to nest near cereal field margins. The higher nest predation rate experienced by hybrids might therefore be explained by less effective anti‐predator behaviour among hybrid females during incubation. As no edge effect on nest predation was observed, the preference for nesting close to cereal margins could be due to the greater food resources of field margins. Moreover, Common Quail nest predation decreased with a rise in barley straw production, supporting evidence that nest cover plays an important role in the prevention of nest predation in this species. No such relationship was found for hybrid quail, but this result is not conclusive, as the data on barley straw production for hybrid quail covered a much smaller range of interannual variability. Barley straw production in Catalonia decreased significantly between 1992 and 2012, possibly as a result of a change in the barley varieties used. This practice could entail a conservation threat for ground‐nesting bird species.

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Genetic relationship between lodging and lodging components in barley (Hordeum vulgare) based on unconditional and conditional quantitative trait locus analyses

Cited by 19 publications

References 39 publications

Identification of quantitative trait loci for mineral elements in grains and grass powder of barley

Identification of quantitative trait loci for mineral elements in grains and grass powder of barley

Optimization of Nitrogen Rate and Planting Density for Improving Yield, Nitrogen Use Efficiency, and Lodging Resistance in Oilseed Rape

The role of nest‐site selection and cereal production in differential nest predation in Common Quail Coturnix coturnix and hybrid quail C. coturnix × C. japonica

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