Changes in fatty acid composition associated with recurrent selection for groat-oil content in oat

The results of long-term studies of the biological, morphological and phenological features of the introduced new culture of safflower in the Central, Volga and North Caucasus regions are presented. Optimum parameters of depth of seeding (5-6 cm), seeding rates (300-350 thousand pieces/hectare or 12-14 kg), ensuring high productivity, oil content and quality of seeds are established. For the first time, the relationship between moisture availability of vegetation periods with accumulation of oil content and a change in the fatty acid composition was established. Oilseed (in untreated seeds) in the regions was from 14,5 to 31,2%, in excessively wet 2013 – 6,4% in the Moscow region and 8,6% in the Saratov region. Fatty acid composition revealed a high content of oleic acid in Krasa Stupinskaya variety – 13,6-16,8%, linoleic acid – 68,5-75,7%. The yield of oil in the Moscow region was 240 kg/ha. The yield of Krasa Stupinskaya in the Moscow Region was 0,6 t/ha, the Rostov Region 0,8 t/ha and Saratov Region 1,2 t/ha, with an average weight of 1000 seeds, respectively, by regions: 40,0 g, 47,3 g and 40,9 g. The growing season for growing seeds was 105 days in the Moscow Region, 94 days in the Rostov Region and 95 days in the Saratov Region. It has been established that excessive moistening during the flowering and seed filling period increases the harmfulness of enzyme-mycosis seed depletion (EMIS) – biological injury during maturation (enzymatic stage), followed by the seeding of the seeds with the phytopathogen Alternaria carthami Chowdhury. In the breeding programs for productivity and oil content, it is recommended to use the varieties Moldir (Kazakhstan) and Krasa Stupinskaya (FGBNU VSTISP), the fatty acid composition of which is characterized by an increased content of oleic and linoleic acid, which is of particular value for storage and use for food purposes.

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Development and screening of EMS mutants with altered seed oil content or fatty acid composition in Brassica napus

The Plant Journal ◽

10.1111/tpj.15003 ◽

2020 ◽

Vol 104 (5) ◽

pp. 1410-1422

Author(s):

Shan Tang ◽

Dong‐Xu Liu ◽

Shaoping Lu ◽

Liangqian Yu ◽

Yuqing Li ◽

...

Keyword(s):

Fatty Acid Composition ◽

Fatty Acid ◽

Brassica Napus ◽

Acid Composition ◽

Oil Content ◽

Seed Oil ◽

Seed Oil Content

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Genetic variation in fatty acid composition of subcutaneous fat in cattle

Animal Production Science ◽

10.1071/an12154 ◽

2013 ◽

Vol 53 (2) ◽

pp. 129 ◽

Cited By ~ 17

Author(s):

M. J. Kelly ◽

R. K. Tume ◽

S. Newman ◽

J. M. Thompson

Keyword(s):

Fatty Acids ◽

Genetic Variation ◽

Fatty Acid Composition ◽

Fatty Acid ◽

Acid Composition ◽

Saturated Fatty Acids ◽

Genetic Correlations ◽

Subcutaneous Fat ◽

Monounsaturated Fatty Acids ◽

Selection For

Genetic parameters were estimated for fatty acid composition of subcutaneous beef fat of 1573 animals which were the progeny of 157 sires across seven breeds grown out on pasture and then finished on either grain or grass in northern New South Wales or in central Queensland. There was genetic variation in individual fatty acids with estimates of heritability for the proportions of C14 : 0, C14 : 1c9, C16 : 0, C16 : 1c9, C18 : 0 and C18 : 1c9 fatty acids in subcutaneous beef fat of the order of 0.4 or above. Also substantial correlations between some fatty acids were observed. Genetic correlations between fatty acids and fat depth at the P8 site suggested that much of the genetic variation in fatty acid composition was related to changes in fatness. Selection for decreased fatness resulted in decreased proportions of C18 : 1c9 with concomitant increases in C18 : 0, C14 : 0 and C16 : 0. This suggested that selection for decreased fatness at a given weight will result in a decrease in the proportions of monounsaturated fatty acids in the subcutaneous fat in the carcass with a corresponding increase in the proportions of saturated fatty acids.

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LIPID AND MORPHOLOGICAL CHANGES IN DEVELOPING RAPESEED, BRASSICA NAPUS

Canadian Journal of Plant Science ◽

10.4141/cjps70-047 ◽

1970 ◽

Vol 50 (3) ◽

pp. 233-247 ◽

Cited By ~ 38

Author(s):

D. B. FOWLER ◽

R. K. DOWNEY

Keyword(s):

Fatty Acid Composition ◽

Fatty Acid ◽

Brassica Napus ◽

Erucic Acid ◽

Seed Development ◽

Acid Composition ◽

Oil Content ◽

Morphological Changes ◽

Dry Weight ◽

Dry Matter Accumulation

Self-pollinated seed from normal and erucic acid free plants of summer rapeseed (Brassica napus L.) was harvested at weekly intervals from pollination to maturity. Oven-dried whole seeds and their component parts were weighed and analyzed for oil content and fatty acid composition. Oil and dry matter accumulation followed sigmoidal patterns, most of the deposition occurring between 14 and 35 days after pollination (DAP). The relative contribution of the testa, endosperm and embryo to dry weight and oil content of whole seeds changed significantly during seed development. Oil content of the developing embryo varied from 22 to 44%, and the testa from 1.6 to 13%, although at maturity only 6 to 8% oil was found in the testa and adhering aleurone. The nucleate endosperm oil content was estimated to be low and in the order of 2 to 2.5%. In 7- to 14-day-old seeds the dry weight, oil content and fatty acid composition were largely determined by the testa and endosperm. From 14 to 21 DAP the testa and embryo were dominant and after 21 DAP the embryo was the controlling influence on the seed characteristics studied.Oils of the testa, nucleate endosperm and embryo differed in fatty acid composition. In seeds free of erucic acid, the ratios of the 18 carbon fatty acids of the embryo and testa remained nearly constant from 21 DAP to maturity. This suggested that the variation in fatty acid composition as well as oil content during seed development in this material was due to disproportionate changes in the contribution of the testa, nucleate endosperm and embryo. However, in developing seeds capable of producing erucic acid a change in the ratio of fatty acid synthesis occurred in both the testa and embryo.

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Conifer seeds: Oil content and fatty acid composition

Journal of the American Oil Chemists Society ◽

10.1007/bf02517953 ◽

1996 ◽

Vol 73 (6) ◽

pp. 765-771 ◽

Cited By ~ 44

Author(s):

Robert L. Wolff ◽

Laurent G. Deluc ◽

Anne M. Marpeau

Keyword(s):

Fatty Acid Composition ◽

Fatty Acid ◽

Acid Composition ◽

Oil Content ◽

Conifer Seeds

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Cold-pressed cactus pear seed oil: Quality and stability

Grasas y Aceites ◽

10.3989/gya.0329201 ◽

2021 ◽

Vol 72 (3) ◽

pp. e415 ◽

Cited By ~ 3

Author(s):

M. De Wit ◽

V.K. Motsamai ◽

A. Hugo

Keyword(s):

Fatty Acids ◽

Fatty Acid Composition ◽

Fatty Acid ◽

Physicochemical Properties ◽

Acid Composition ◽

Oil Content ◽

Seed Oil ◽

Oil Quality ◽

Cactus Pear ◽

Cold Pressed

Cold-pressed seed oil from twelve commercially produced cactus pear cultivars was assessed for oil yield, fatty acid composition, physicochemical properties, quality and stability. Large differences in oil content, fatty acid composition and physicochemical properties (IV, PV, RI, tocopherols, ORAC, % FFA, OSI and induction time) were observed. Oil content ranged between 2.51% and 5.96% (Meyers and American Giant). The important fatty acids detected were C16:0, C18:0, C18:1c9 and C18:2c9,12, with C18:2c9,12, the dominating fatty acid, ranging from 58.56-65.73%, followed by C18:1c9, ranging between 13.18-16.07%, C16:0, which ranged between 10.97 - 15.07% and C18:0, which ranged between 2.62-3.18%. Other fatty acids such as C14:0, C16:1c9, C17:0, C17:1c10, C20:0, C18:3c9,12,15 and C20:3c8,11,14 were detected in small amounts. The quality parameters of the oils were strongly influenced by oil content, fatty acid composition and physicochemical properties. Oil content, PV, % FFA, RI, IV, tocopherols, ORAC and ρ-anisidine value were negatively correlated with OSI. C18:0; C18:1c9; C18:2c9,12; MUFA; PUFA; n-6 and PUFA/SFA were also negatively correlated with OSI. Among all the cultivars, American Giant was identified as the paramount cultivar with good quality traits (oil content and oxidative stability).

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