A Unique Fatty Acid from Limnanthes douglasii Seed Oil: The C<sub>22</sub> Diene

Bagby, M. O.; Smith, C. R.; Miwa, Thomas K.; Lohmar, R. L.; Wolff, I. A.

doi:10.1021/jo01063a067

Cited by 46 publications

(12 citation statements)

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“…The seed oil of meadowfoam is a rich source of novel very long-chain fatty acids (C 20 and C 22 ) (Smith et al 1960;Bagby et al 1961). The oil has unusually high concentrations of D5 unsaturated (typically 86%) and C 20 and C 22 (typically 96%) fatty acids and extraordinarily low concentrations of saturated fatty acids (typically less than 2%) (Knapp and Crane 1995).…”

Section: Introductionmentioning

confidence: 99%

Conserved simple sequence repeats for the Limnanthaceae (Brassicales)

et al. 2003

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The Limnanthaceae (Order Brassicales) is a family of 18 taxa of Limnanthes (meadowfoam) native to California, Oregon, and British Columbia. Cultivated meadowfoam ( L. alba Benth.), a recently domesticated plant, has been the focus of research and development as an industrial oilseed for three decades. The goal of the present research was to develop several hundred simple sequence repeat (SSR) markers for genetic mapping, molecular breeding, and genomics research in wild and cultivated meadowfoam taxa. We developed 389 SSR markers for cultivated meadowfoam by isolating and sequencing 1,596 clones from L. alba genomic DNA libraries enriched for AG(n) or AC(n) repeats, identifying one or more unique SSRs in 696 clone sequences, and designing and testing primers for 624 unique SSRs. The SSR markers were screened for cross- taxa utility and polymorphisms among ten of 17 taxa in the Limnanthaceae; 373 of these markers were polymorphic and 106 amplified loci from every taxon. Cross-taxa amplification percentages ranged from 37.3% in L. douglasii ssp. rosea (145/389) to 85.6% in L. montana (333/389). The SSR markers amplified 4,160 unique bands from 14 genotypes sampled from ten taxa (10.7 unique bands per SSR marker), of which 972 were genotype-specific. Mean and maximum haplotype heterozygosities were 0.71 and 0.90, respectively, among six L. alba genotypes and 0.63 and 0.93, respectively, among 14 genotypes (ten taxa). The SSR markers supply a critical mass of high-throughput DNA markers for biological and agricultural research across the Limnanthaceae and open the way to the development of a genetic linkage map for meadowfoam ( x = 5).

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Section: Introductionmentioning

confidence: 99%

Conserved simple sequence repeats for the Limnanthaceae (Brassicales)

et al. 2003

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“…This species requires pollinators for high seed production because of protandry (anthers mature and shed pollen before the stigma of the same flower becomes receptive). Meadowfoam seed contains an oil of unique composition (Bagby et al, 1961;Smith et al, 1960) that is of commercial interest. Commercial acreages of meadowfoam, grown for seed oil, have been in production since 1983.…”

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confidence: 99%

Nitrogen Fertilizer Effects on Growth, Flowering, Oil Yield, and Yield Components in Meadowfoam¹

Pearson¹,

Jolliff

1986

Agronomy Journal

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Meadowfoam (Limnanthes alba Benth.) seed is a source of oil for use in industrial products and processes. Nitrogen fertilization typically has not increased seed yields of meadowfoam. Data are lacking for characterizing plant growth responses, flowering, honey bee (Apis mellifera L.) foraging, oil yield, and yield components of meadowfoam when fertilized with N. Thus, this field study was conducted in 1981 and 1982 on a Woodburn silt loam soil (fine-silty, mixed, mesic Aquultic Argixeroll) to determine the effects of ammonium sulfate applied at 0 (control), 50 (SON), and 100 (lOON) kg N ha-•. Increased vegetative growth of meadowfoam in response to spring application of N appears to be consistent. Nitrogen fertilization lowered canopy light transmittance and caused a differential flowering response from nonfertilized plants. Seeds per flower in the N-fertilized treatments were not increased. Flower densities inN-fertilized treatments in 1982 averaged 135% higher than in the control. Seed yields were not increased by N in 1981, but in 1982, seed and oil yields were increased by 113 and 99%, respectively, when N was applied. Oil content was consistently lower when N was applied, but this effect was more than offset by the higher seed yield in 1982. Because of the similar response of agronomic characters in SON and lOON treatments, applications of 100 kg N ha-• do not appear to be advantageous. Spring N fertilization of meadowfoam increased seed yield primarily through increased flower number.

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“…The presence of long-chain fatty acids unique to Limnanthes (cis-5-eicosenoic acid and cis-5-docosenoic acid; Smith et al, 1960;Bagby et al, 1961) and the unique position of unsaturation in the cis-5-cis-13-docosadienoic acid provide stability at high temperatures. Interest in this property fuelled research into the seed oil for use as an industrial lubricant .…”

Section: Introductionmentioning

confidence: 99%

Genetic diversity in the USDA Limnanthes germplasm collection assessed by simple sequence repeats

Donnelly

Jenderek

Prince

et al. 2009

Plant Genet. Resour.

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The genus Limnanthes (Limnanthaceae), also known as meadowfoam, has attracted attention for industrial use due to the unique characteristics of its seed oil. Samples from wild populations showed variability in agronomically important traits involved in seed oil yield, warranting the establishment and continued development of a germplasm collection. The level of genetic diversity within the United States Department of Agriculture, Agriculture Research Service, National Plant Germplasm System (USDA-ARS-NPGS) Limnanthes collection was evaluated using 15 simple sequence repeat (SSR) markers across 62 accessions representing 7 species. Parsimony analysis separated the accessions into two main groups consistent with the traditional taxonomic sections Inflexae and Reflexae, but there was little resolution within groups. These two groups were confirmed using neighbour-joining analysis and principal coordinate analysis. SSR marker variation suggests that the Limnanthes germplasm collection is genetically diverse and the accessions within the species likely contain novel alleles, and therefore the collection contributes to the conservation of the wild Limnanthes gene pool.

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A Unique Fatty Acid from Limnanthes douglasii Seed Oil: The C₂₂ Diene

Cited by 46 publications

References 4 publications

Conserved simple sequence repeats for the Limnanthaceae (Brassicales)

Conserved simple sequence repeats for the Limnanthaceae (Brassicales)

Nitrogen Fertilizer Effects on Growth, Flowering, Oil Yield, and Yield Components in Meadowfoam¹

Genetic diversity in the USDA Limnanthes germplasm collection assessed by simple sequence repeats

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A Unique Fatty Acid from Limnanthes douglasii Seed Oil: The C22 Diene

Cited by 46 publications

References 4 publications

Conserved simple sequence repeats for the Limnanthaceae (Brassicales)

Conserved simple sequence repeats for the Limnanthaceae (Brassicales)

Nitrogen Fertilizer Effects on Growth, Flowering, Oil Yield, and Yield Components in Meadowfoam1

Genetic diversity in the USDA Limnanthes germplasm collection assessed by simple sequence repeats

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A Unique Fatty Acid from Limnanthes douglasii Seed Oil: The C₂₂ Diene

Nitrogen Fertilizer Effects on Growth, Flowering, Oil Yield, and Yield Components in Meadowfoam¹