Relation Between Simultaneous Ca and Sr Transport Rates in Isolated Segments of Vetch, Barley, and Pine Roots

Hutchin, Maxine E.; Vaughan, B.E.

doi:10.1104/pp.43.12.1913

Cited by 16 publications

(8 citation statements)

References 18 publications

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“…Highly correlated element pairs in our data included Mg/P, Mg/ Mn, P/S, and Mg/S. Divalent cations Ca/Sr and K/Rb are chemical analogs, and strong correlation was observed between these pairs of elements, consistent with previous reports in other species (Queen et al, 1963;Hutchin and Vaughan, 1968;Ozgen et al, 2011;Broadley and White, 2012). In the SAP, the first two principal components accounted for a large fraction of the phenotypic covariance (36%).…”

Section: Phenotypic Diversity For Seed Element Concentrations In the supporting

confidence: 78%

Integration of Experiments across Diverse Environments Identifies the Genetic Determinants of Variation in Sorghum bicolor Seed Element Composition

et al. 2016

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Seedling establishment and seed nutritional quality require the sequestration of sufficient element nutrients. The identification of genes and alleles that modify element content in the grains of cereals, including sorghum (Sorghum bicolor), is fundamental to developing breeding and selection methods aimed at increasing bioavailable element content and improving crop growth. We have developed a high-throughput work flow for the simultaneous measurement of multiple elements in sorghum seeds. We measured seed element levels in the genotyped Sorghum Association Panel, representing all major cultivated sorghum races from diverse geographic and climatic regions, and mapped alleles contributing to seed element variation across three environments by genome-wide association. We observed significant phenotypic and genetic correlation between several elements across multiple years and diverse environments. The power of combining high-precision measurements with genome-wide association was demonstrated by implementing rank transformation and a multilocus mixed model to map alleles controlling 20 element traits, identifying 255 loci affecting the sorghum seed ionome. Sequence similarity to genes characterized in previous studies identified likely causative genes for the accumulation of zinc, manganese, nickel, calcium, and cadmium in sorghum seeds. In addition to strong candidates for these five elements, we provide a list of candidate loci for several other elements. Our approach enabled the identification of single-nucleotide polymorphisms in strong linkage disequilibrium with causative polymorphisms that can be evaluated in targeted selection strategies for plant breeding and improvement.

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Section: Phenotypic Diversity For Seed Element Concentrations In the supporting

confidence: 78%

Integration of Experiments across Diverse Environments Identifies the Genetic Determinants of Variation in Sorghum bicolor Seed Element Composition

et al. 2016

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“…Pairwise correlations were calculated and graphed, and principal component analysis (PCA) was carried out (Figures 2a and 2b and Supplemental Table 3). Highly correlated element pairs in our data included Mg-P, Mg-Mn, P-S and Mg-S. Divalent cations Ca 2+ and Sr 2+ are chemical analogs and strong correlation was observed between these two elements, consistent with previous reports in other species (Queen et al, 1963;Hutchin and Vaughan, 1968;Ozgen et al, 2011;Broadley and White, 2012). In the SAP, the first two principal components accounted for a large fraction of the phenotypic covariance (36%).…”

Section: Phenotypic Diversity For Seed Mineral Concentrations In the supporting

confidence: 91%

Integration of experiments across diverse environments identifies the genetic determinants of variation inSorghum bicolorseed element composition

Shakoor

Ziegler

Dilkes

et al. 2015

Preprint

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Seedling establishment and seed nutritional quality require the sequestration of sufficient mineral nutrients. Identification of genes and alleles that modify element content in the grains of cereals, includingSorghum bicolor, is fundamental to developing breeding and selection methods aimed at increasing bioavailable mineral content and improving crop growth. We have developed a high throughput workflow for the simultaneous measurement of multiple elements in Sorghum seeds. We measured seed element levels in the genotyped Sorghum Association Panel (SAP), representing all major cultivated sorghum races from diverse geographic and climatic regions, and mapped alleles contributing to seed element variation across three environments by genome-wide association. We observed significant phenotypic and genetic correlation between several elements across multiple years and diverse environments. The power of combining high-precision measurements with genome wide association was demonstrated by implementing rank transformation and a multilocus mixed model (MLMM) to map alleles controlling 20 element traits, identifying 255 loci affecting the sorghum seed ionome. Sequence similarity to genes characterized in previous studies identified likely causative genes for the accumulation of zinc (Zn) manganese (Mn), nickel (Ni), calcium (Ca) and cadmium (Cd) in sorghum seed. In addition to strong candidates for these four elements, we provide a list of candidate loci for several other elements. Our approach enabled identification of SNPs in strong LD with causative polymorphisms that can be used directly in plant breeding and improvement.

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“…Fox and Lipps, 1964;Pinkerton and Simpson, 1982), it does not exactly simulate calcium (e.g. Hutchin and Vaughan, 1968).…”

Section: Introductionmentioning

confidence: 99%

The root activity of cereals and peas when grown in pure stands and mixtures

Tofinga

Snaydon

1992

Plant Soil

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Lithium was used as a non-radioactive tracer to investigate the root activity of two cereals (wheat and barley), and of two contrasting cultivars of pea (leafy and semi-leafless), both in pure stands and in mixtures. The mixtures included combinations of each cereal with each pea cultivar in single rows, alternative rows and cross-drilled.Total lithium uptake (mg m -z) was higher for wheat than for barley, and higher for semi-leafless pea than for leafy peas. Growing cereals with peas reduced the total lithium uptake by peas, compared with pure stands, especially in alternate-row mixtures. Growing peas with cereals only reduced the total Li uptake by cereals when they were cross-drilled. The Li uptake by wheat, barley and peas generally decreased with soil depth in a similar manner; however, semi-leafless peas absorbed proportionately more Li from close to the soil surface than did leafy peas. Both pea cultivars absorbed more Li at 10-20 cm depth when grown in intimate mixtures with cereals, compared with less intimate mixtures or pure stands.The potential of lithium as a non-radioactive tracer in mixed-cropping studies is briefly discussed.

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Relation Between Simultaneous Ca and Sr Transport Rates in Isolated Segments of Vetch, Barley, and Pine Roots

Cited by 16 publications

References 18 publications

Integration of Experiments across Diverse Environments Identifies the Genetic Determinants of Variation in Sorghum bicolor Seed Element Composition

Integration of Experiments across Diverse Environments Identifies the Genetic Determinants of Variation in Sorghum bicolor Seed Element Composition

Integration of experiments across diverse environments identifies the genetic determinants of variation inSorghum bicolorseed element composition

The root activity of cereals and peas when grown in pure stands and mixtures

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