Potentials and Restrictions of Breeding for Protein Improvement in Rapeseed

Röbbelen, G.

doi:10.1007/978-94-009-8334-2_1

Cited by 3 publications

(2 citation statements)

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“…Thus, the nutritive value of rapeseed meal is not less than soybean meal (Josefesson and Muhlenberg 1968;Simbaya et al 1995). (Röbbelen 1981) emphasized that the development of highprotein cultivars in rapeseed is an important breeding objective, because the rapeseed meal can be changed into an economically viable feed for livestock. Condensed proteins from rapeseed meal have been applied to high-valued animal feed ingredients.…”

Section: Introductionmentioning

confidence: 98%

Analysis of embryo, cytoplasmic and maternal genetic correlations for seven essential amino acids in rapeseed meal (Brassica napus L.)

Chen

Variath

et al. 2011

J Genet

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Genetic correlations of nutrient quality traits including lysine, methionine, leucine, isoleucine, phenylalanine, valine and threonine contents in rapeseed meal were analysed by the genetic model for quantitative traits of diploid plants using a diallel design with nine parents of Brassica napus L. These results indicated that the genetic correlations of embryo, cytoplasm and/or maternal plant havemade different contribution to total genetic correlations of most pairwise nutrient quality traits. The genetic correlations among the amino acids in rapeseed meal were simultaneously controlled by genetic main correlations and genotype x environment (GE) interaction correlations, especially for the maternal dominance correlations. Most components of genetic main correlations and GE interaction correlations for the pairwise traits studied were significantly positive. Some of the pairwise traits had negative genetic correlations, especially between valine and other amino acid contents. Indirect selection for improving the quality traits of rapeseed meal could be expected in rape breeding according to the magnitude and direction of genetic correlation components.

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Section: Introductionmentioning

confidence: 98%

Analysis of embryo, cytoplasmic and maternal genetic correlations for seven essential amino acids in rapeseed meal (Brassica napus L.)

Chen

Variath

et al. 2011

J Genet

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“…Although its economic value mainly depends on the seed oil content, the increase of seed protein content is also an important breeding objective. Development of cultivars with high protein or essential amino acid content has therefore been proposed for achieving the full potential benefits of Brassica crops (Röbbelen 1981). Further research on TC in rapeseed meal is useful for livestock and poultry production.…”

Section: Dynamic Genetic Effects On Threonine Content In Rapeseed (Brmentioning

confidence: 99%

Dynamic genetic effects on threonine content in rapeseed (Brassica napus L.) meal at different developmental stages

Chen¹,

Wu²,

Shi³

2011

CZECH J GENET PLANT

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Dynamic genetic effects on threonine content (TC) of rapeseed (Brassica napus L.) meal were analysed at 5 developmental times/stages using the genetic models for diploid plant seeds. Results indicated that the expression of diploid embryo, cytoplasmic and diploid maternal plant genes were all important for the performance of TC at various developmental times/stages of rapeseed, especially at the early and middle developmental stages. Among different genetic systems, TC was mainly controlled by the cumulative or net maternal main effects and the genotype × environment (GE) interaction effects, followed by the embryo main effects and GE interaction effects. The expression of genes was more easily influenced by the environmental factors at the first three developmental stages. The total narrow-sense heritabilities for TC on 15, 22, 29, 36 and 43 days post anthesis were 46.50, 62.60, 57.10, 84.70 and 59.50%, respectively, of which the interaction heritabilities were more important at the first three developmental stages of rapeseed. The improvement in TC of rapeseed meal could be expected by selection based on the higher narrow-sense heritabilities near maturity. The predicted genetic effects of parents showed that TC of progeny could be improved by using the parent Gaoyou 605.

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Velasco

Möllers²

2002

Euphytica

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Potentials and Restrictions of Breeding for Protein Improvement in Rapeseed

Cited by 3 publications

References 4 publications

Analysis of embryo, cytoplasmic and maternal genetic correlations for seven essential amino acids in rapeseed meal (Brassica napus L.)

Analysis of embryo, cytoplasmic and maternal genetic correlations for seven essential amino acids in rapeseed meal (Brassica napus L.)

Dynamic genetic effects on threonine content in rapeseed (Brassica napus L.) meal at different developmental stages

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