Paternal and Maternal Effects on Protein and Oil Content in Summer Rape

Grami, Bahram; Stefansson, B. R.

doi:10.4141/cjps77-135

Cited by 26 publications

(20 citation statements)

References 14 publications

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“…There were also highly significant and consistent differences in percentage protein of F, seeds and self-pollinated seeds borne on plants of the same cultivars of cross 11. The observed significant effect of pollen source is in contrast with the findings of Grami and Stefansson (1977) for summer rape (Brassica napus L) and Ishige (1 984) for soya bean, but agrees with the results of Dhaliwal (1977) for wheat. The results suggest that seed protein content may not be exclusively regulated by the maternal genotype.…”

Section: Reciprocal Effectssupporting

confidence: 84%

Inheritance of protein content in seeds of selected crosses of cowpea (Vigna unguiculata)

Emebiri

1991

J Sci Food Agric

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The inheritance pattern of protein content in seeds of two crosses of cowpea (Vigna unguiculata (L) Walp) was studied. I t was observed that, in both crosses, inheritance of the character involved both additive and non-additive gene effects. Heritability in the broad sense was 0.704.78. A significant effect of pollen source was detected in one of the two crosses. I n both crosses, comparison of seed protein content of reciprocal segregating generations indicated the influence of cytoplasmic factors.

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Section: Reciprocal Effectssupporting

confidence: 84%

Inheritance of protein content in seeds of selected crosses of cowpea (Vigna unguiculata)

Emebiri

1991

J Sci Food Agric

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“…In light of the results from the reciprocal crosses, it must be considered that genes controlling oil content may also be acting maternally through controlling the supply of carbon and/or regulatory factors to the seed. Certainly, strong maternal effects on seed oil content have been observed for a number of oilseed crops including spring oilseed rape (Grami and Stefansson, 1977), sunflower (Pawlowski, 1964;Thompson et al, 1979), and soybean (Brim et al, 1968) but not safflower (Yermanos et al, 1967). However, it is not possible to suggest which genes might be involved in maternal control given that it is not well understood at present.…”

Section: Discussionmentioning

confidence: 99%

“…An analysis of groat oil content in oats revealed the presence of a small number of QTLs and an association between the major QTL and the plastidic acetyl-CoA carboxylase gene (Kianian et al, 1999). It should be noted that the major factors influencing seed oil content may well be maternally controlled as demonstrated by reciprocal crosses using high and low oil lines of soybean, sunflower, and oilseed rape (Brim et al, 1968;Pawlowski, 1964;Grami and Stefansson, 1977;Thompson et al, 1979).…”

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confidence: 98%

Genetic Control of Storage Oil Synthesis in Seeds of Arabidopsis

2004

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Quantitative trait loci (QTL) that control seed oil content and fatty acid composition were studied using a recombinant inbred population derived from a cross between the Arabidopsis ecotypes Landsberg erecta and Cape Verdi Islands. Multiple QTL model mapping identified two major and two minor QTL that account for 43% of the variation in oil content in the population. The most significant QTL is at the bottom of chromosome 2 and accounts for 17% of the genetic variation. Two other significant QTL, located on the upper and lower arms of chromosome 1, account for a further 19% of the genetic variation. A QTL near to the top of chomosome 3 is epistatic to that on the upper arm of chromosome 1. There are strong QTL for linoleic (18:2) and linolenic (18:3) acids contents that colocate with the FAD3 locus, another for oleic acid (18:1) that colocates with FAD2 and other less significant QTL for palmitic (16:0), stearic (18:0), and eicosaenoic (20:1) acids. The presence of the QTL for seed oil content on chromosome 2 was confirmed by the generation of lines that contain a 22-cM region of Landsberg erecta DNA at the bottom of chromosome 2 in a background containing Cape Verdi Islands in other regions of the genome that had been shown to influence oil content in the QTL analysis.

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“…So it is important to reduce both EAC and the glucosinolates content (GSLC) in rape seed quality breeding (Mou and Liu 1990;Naczk et al 1998). The rape seed quality traits such as the protein content (PC), EAC, GSLC and other fatty acids were influenced by the genotypes and environmental factors (Yermanos and Knowles 1962;Grami and Stefansson 1977;Brandle and McVetty 1988;Jensen et al 1996;Bouchereau et al 1996;Si et al 2003). Furthermore, it has also been revealed that phenotypic variations for some important quality traits of rape seed were simultaneously controlled by genetic main effects from diploid embryo (cotyledon) nuclear genes, cytoplasmic genes, diploid maternal plant nuclear genes, as well as by their genotype 9 environment (GE) interaction effects (Shi et al 2003Zhang et al 2004;Wu et al 2005Wu et al , 2006.…”

Section: Introductionmentioning

confidence: 99%

Impacts of erucic acid and glucosinolate content on genetic relationships between protein content and fatty acids of rape seed across environments

Shi

et al. 2011

Euphytica

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Impacts of erucic acid content (EAC) and glucosinolate content (GSLC) on the genetic correlations between protein content (PC) and oil content (OC) or PC and fatty acid contents (FAC) in rape seed (Brassica napus L.) was analyzed by using unconditional and conditional methods related to genetic effects from the diploid embryo nuclear genes, cytoplasm genes and diploid maternal plant nuclear genes. A diallel mating design in two environments was conducted by using eight varieties along with their F 1 and F 2 . It was found that there were significant relationships between PC and EAC or PC and GSLC of rape seed, and the conditional analysis method could be used to exclude the influences of EAC or GSLC for further revealing the actual genetic relationships between PC and OC or PC and FAC. The results from conditional analysis showed that when PC was conditioned on EAC or GSLC the conditional phenotypic and genotypic relationships between PC|EAC and oleic acid content or PC|GSLC and OC were changed to significantly positive, while those between PC|EAC and eicosenoic acid content or PC|GSLC and linolenic acid content became significantly negative. Thus, the levels of EAC and GSLC of rape seed could affect the correlations between PC and OC or PC and FAC. For the conditional genetic relationship analysis of different genetic systems, visible changes were found for many genetic correlation components from the embryo, cytoplasm and maternal plant between PC and OC or PC and FAC after eliminating the influences of EAC or GSLC, especially for conditional embryo dominance, cytoplasmic, maternal additive main covariances and conditional embryo dominance interaction covariance.

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Paternal and Maternal Effects on Protein and Oil Content in Summer Rape

Cited by 26 publications

References 14 publications

Inheritance of protein content in seeds of selected crosses of cowpea (Vigna unguiculata)

Inheritance of protein content in seeds of selected crosses of cowpea (Vigna unguiculata)

Genetic Control of Storage Oil Synthesis in Seeds of Arabidopsis

Impacts of erucic acid and glucosinolate content on genetic relationships between protein content and fatty acids of rape seed across environments

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