Lipids in Maize Technology

Weber, Evelyn J.

doi:10.1016/b978-0-12-079020-3.50023-4

Cited by 12 publications

(12 citation statements)

References 45 publications

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“…Part of the effects of HOI corn could also have been due to its higher linoleic acid content, although no response was observed in egg weight, the parameter usually affected most by linoleic acid (Scott ex al., 1976). High oil corn varieties contain substantially more linoleic acid than CONV corn, since the highest concentration of linoleic acid is found in the triglycerides of corn germ (Weber, 1983). It is apparent from the data presented herein that the nutritive value of high oil corn varieties is superior to that of CONV corn for poultry.…”

Section: Resultsmentioning

confidence: 66%

“…The importance of corn in the US is illustrated by the fact that production of this cereal grain exceeds the combined total of all other major grains (Weber, 1983). About 88% of the US corn crop is used for livestock feed (Jugenheimer, 1976).…”

Section: Introductionmentioning

confidence: 99%

“…In 1981, after 82 generations of mass selection, the Illinois high oil 1 To whom reprint requests should be addressed. Current address is: 322 Mumford Hall, 1301 West Gregory Drive, Urbana, IL 61801. strain had 19% oil (Weber, 1983). With effective breeding schemes, hybrids have been produced that contain 6 to 8% oil and exhibit yields similar to those of commercial varieties (Watson and Freeman, 1975;Creech and Alexander, 1978).…”

Section: Introductionmentioning

confidence: 99%

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Nutritive Value of High Oil Corn for Poultry

1987

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Several experiments were conducted to evaluate the nutritional value of high oil corn for poultry relative to that of conventional (CONV) corn. The variety of high oil corn (HO1) evaluated in most trials contained 6.0% oil and 9.6% protein on a 10% moisture basis. The protein quality of HO1 and CONV corn was assessed with female crossbred chicks fed corn as the sole source of dietary protein. There was no difference in either protein efficiency ratio or in net protein ratio between the two types of corn. True metabolizable energy (TME) and nitrogen-corrected TME (TMEn) values of HO1 corn were determined using adult roosters. The TME and TMEn values of HO1 corn were approximately 4.5% higher than those of CONV corn. Two experiments were conducted to evaluate the use of high oil corn varieties, containing from 6 to 13% oil, in practical diets of commercial broiler chicks from 8 to 22 days posthatching. Weight gain, gain-to-feed ratio, and skin and plasma pigmentation were improved in chicks fed 24% protein diets containing high oil corns compared with those fed the same diet containing CONV corn; magnitude of response was highly correlated to oil content of the corn. The relative value of HO1 corn in practical laying hen diets was examined in a 15-wk experiment. Hens fed a 17% protein diet containing HO1 corn from 23 to 38 weeks of age had a better feed-to-egg ratio than those fed the same diet containing CONV corn when the corn sources were substituted on an isonitrogenous basis.(ABSTRACT TRUNCATED AT 250 WORDS)

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Section: Resultsmentioning

confidence: 66%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Nutritive Value of High Oil Corn for Poultry

1987

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“…-oats: -maize: ranging between 3.1 % and 11.6% (Youngs 1978); in American high oil lines oil content was increased from 4.7% to 17.0% by selection (Weber 1978).…”

Section: Seed Lipidsmentioning

confidence: 99%

Induced Mutations in Plant Breeding

Gottschalk¹,

Wolff²

1983

Monographs on Theoretical and Applied Genetics

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“…Several thousand maize monosomic plants including monosomics for each of the 10 maize chromosomes, have been recovered using this system. It has also been used successfully to assign a biochemical marker [the benzoxazinless locus (13)], a histone electrophoretic variant (14), and an isozyme locus of peroxidase (15) to the respective chromosomes. Monosomics have been compared with diploid sibling plants in studies of gene dosage effects on factors controlling the level and composition of embryo lipids (16,17), the free fatty acid composition in leaves (18), and recombination (19).…”

Section: Introductionmentioning

confidence: 99%

Use of monosomics to map cloned DNA fragments in maize

Helentjaris¹,

Weber

Wright³

1986

Proc. Natl. Acad. Sci. U.S.A.

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Monosomic maize (Zea mays L.) plants were generated using the r-X1 deficiency system, and the monosomy was confirmed both genetically and cytologically. Genomic DNAs prepared from a group of plants, each monosomic for one chromosome, were digested with restriction enzymes, electrophoresed in agarose gels, and blotted onto nylon membranes. Hybridization of labeled cloned DNA fragments to these blots proved efficient in assigning each fragment to the chromosome from which it originated. Cloned DNA has previously contributed to loci detection through the use of the restriction fragment length polymorphisms (RFLPs), these loci subsequently being arranged into linkage groups by segregation analysis. In this study, these linkage groups were assigned to specific chromosomes, facilitating the construction of a linkage map for maize containing 112 RFLP loci. An additional 35 loci were also assigned to chromosomes by this method; however, the linkage relationships of these loci to other RFLP loci on each chromosome remains undetermined.When a cloned fragment of genomic DNA hybridizes to a Southern blot containing genomic DNAs (prepared from related but distinct organisms) and a hybridization pattern difference appears, this difference is termed a "restriction fragment length polymorphism" (RFLP) (1). The potential application of RFLPs to plant genetics (2-4) and the variability among species discovered with cloned DNA probes have been reported (5, 6). These RFLPs have been used to detect loci that have led to the preliminary construction of linkage groups in maize and tomato (7); this process, however, could not identify the chromosomal locations of most of these linkage groups. A major difficulty in developing genetic maps based upon RFLPs is incorporating these results onto existing genetic maps that are drawn from cytological, morphological (8), and isozyme (9) data. Although conventional linkage analysis could be used to place the RFLPidentified loci on an existing genetic map, the task would be time-consuming and require the inheritance analysis of many RFLPs in several different populations segregating for known morphological markers or isozymes.The r-XJ deficiency system in maize produces both monosomic (lacking one chromosome) and trisomic plants (10-12). These plants, germinated from kernels carrying the submicroscopic r-XJ deficiency on chromosome 10 that contains the R locus, typically include 10-18% monosomics-in instances in which the female parent does not supply the missing chromosome-and 10-18% trisomics. Most remaining plants are diploids, but some multiple aneuploids and partial chromosome deficiencies are also produced. Several thousand maize monosomic plants including monosomics for each of the 10 maize chromosomes, have been recovered using this system. It has also been used successfully to assign a biochemical marker [the benzoxazinless locus (13)], a histone electrophoretic variant (14), and an isozyme locus of peroxidase (15) to the respective chromosomes. Monosomics have been compared with...

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Lipids in Maize Technology

Cited by 12 publications

References 45 publications

Nutritive Value of High Oil Corn for Poultry

Nutritive Value of High Oil Corn for Poultry

Induced Mutations in Plant Breeding

Use of monosomics to map cloned DNA fragments in maize

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