Screening of Cotton Genotypes for Protein Content, Oil and Fatty Acid Composition

Abstract

The increase in the population at the global level necessitates to explore promising approaches to increase food supply, including protein and oil, to meet the needs of the people. Cotton is one of the most important oil producing crops and cottonseed meal provides important protein nutrients as animal feed. However, information on the genetic basis of cottonseed oil and protein contents is lacking. In this study; protein contents, oil and fatty acid composition of 124 cotton genotypes were observed for developing new cultivars. Accelerated Solvent Extraction method used for determining fat ratio; Gas Chromatography employed for fatty acid analysis while protein contents were analyzed by Kjeldahl method. Average crude oil 31.0%, total fat contents varied from 23.11 to 37.70% while mean protein content 38.0% were observed among genotypes. The dominating fatty acids included linoleic acid, palmitic acid and oleic acid (46.91, 25.73 and 20.21%) respectively, while linolenic acid (0.13%), γ-linolenic (0.33%), palmitoleic acid (0.64%), myristic acid (0.88%), nervonic acid (1%) and stearic acid (2.38%) had variations in fatty acid contents. Frequency distribution of the parameters showed a normal distribution and differences among genotypes for the traits studied were statistically highly significant. Prinicipal component analysis showed a complex opposite relationship with a total protein and oil contents. Genotypes; Fantom for protein, Cirpan 60 for total crude oil, Stoneville 468 and YB195 for higher amount of fatty acids especially oleic acid; can be used for improvement of cottonseed quality in breeding programs.

Cottonseed Protein, Oil, and Mineral Nutrition in Near-Isogenic <i>Gossypium hirsutum</i> Cotton Lines Expressing Leaf Color Phenotypes under Field Conditions

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Protein profiling of water and alkali soluble cottonseed protein isolates

“…Much of the cotton land area in the US is located in the southern and southeastern regions 2 – 4 . Although cotton is mainly planted for its fiber, for every 100 kg of lint fiber ginned from cotton, 150 kg of cottonseed is produced 5 – 7 . The cottonseed mainly contains lipids, proteins, carbohydrate, and minerals 8 – 12 .…”

Association Mapping of Verticillium Wilt Disease in a Worldwide Collection of Cotton (Gossypium hirsutum L.)

“…Cotton ( Gossypium spp.) is an important plant that provides raw materials to the textile, food and feed industries [ 1 ]. Biotic and abiotic stress factors in cotton cause a decrease in yield and quality.…”