Inheritance of seed colour in Brassica campestris L. and breeding for yellow-seeded B. napus L.

Chen, B. Y.; Heneen, Waheeb K.

doi:10.1007/bf00041268

Cited by 59 publications

(48 citation statements)

References 16 publications

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“…However, our observations that seeds formed on Y0, when crossed with the dark-seeded WW989 were light brown instead of yellow, suggest that, while seed colour is determined primarily by the maternal genotype, it is also affected by the embryo genotype (which would be brown seed) and consequently, the pollen parent. This interpretation agrees with those made by Schwetka (1982) and Chen & Heneen (1992) on the basis of results obtained from reciprocal crosses between light-and dark-seeded parents in B. rapa. The influence of the paternal genotype on seed coat colour is consistent with the developmental pattern of the seed coat in rapeseed.…”

Section: Vernalizationsupporting

confidence: 81%

“…The lack of progress in fixing genes controlling seed colour in B. napus is probably attributable to the genetic complexity of the trait. Seed colour in rape is complicated by allotetraploidy, maternal inheritance and multiple gene inheritance (Shirzadegan, 1986;Chen & Heneen, 1992;Henderson & Pauls, 1992). Furthermore, Shirzadegan (1986)provided preliminary evidence indicating that environmental factors can modify the seed coat colour in rape.…”

Section: Introductionmentioning

confidence: 99%

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The inheritance of seed colour and vernalization requirement in Brassica napus using doubled haploid populations

Deynze

Pauls

1993

Euphytica

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Doubled haploid (DH) and F2 populations were used to study the inheritance of seed colour and one DH population was used to study vernalization requirement in Brassica napus. Seed colour was primarily determined by the maternal genotype, but effects of the paternal parent were obvious in a reciprocal F2. The seed colour distributions in the populations fit a trigenic ratio with black seed colour being dominant over yellow seed colour. In the proposed model, which was supported by segregation ratios in an F2 population from a cross with a black-seeded maternal parent (but not its reciprocal) and segregation ratios in 4 DH populations, black seeds were formed when the A gene was homozygous dominant and at least one dominant allele was present at the B locus, brown seeds developed when one or more recessive alleles were present at the A locus and one (or more) dominant alleles was (were) present at any of the three loci and yellow seeds occurred when all three loci were homozygous recessive. The vernalization study showed that the spring habit was dominant to the winter habit and that the requirement for vernalization was controlled by a major and a minor gene. The enhanced resolution of genetic classes afforded by the use of DHs allowed the relative effects of the major and minor vernalization genes to be determined. In the proposed model the major gene was sufficient to allow nonvernalized plants to flower in 62 days or less, the minor gene allowed nonvernalized plants to flower in 63 to 77 days and double recessive genotypes required more than 77 days to flower without vernalization.Abbreviations:DH-doubled haploid

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Section: Vernalizationsupporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

The inheritance of seed colour and vernalization requirement in Brassica napus using doubled haploid populations

Deynze

Pauls

1993

Euphytica

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“…Similarly, Hawk (1982) and Chen and Heneen (1992) also reported dominant single gene control of brown seed colour in annual oilseed B. rapa types in crosses with yellow sarson. Schwetka (1982) reported seed colour segregation data in progenies of crosses between seven yellow-seeded B. rapa forms which included two yellow sarson lines, and one brown seeded turnip rape.…”

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confidence: 77%

Repression of seed coat pigmentation in Ethiopian mustard

Getinet¹,

Rakow²

1997

Can. J. Plant Sci.

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Getinet, A. and Rakow, G. 1997. Repression of seed coat pigmentation in Ethiopian mustard. Can. J. Plant Sci. 77: 501-505. The inheritance of seed colour in Brassica carinata A. Braun was investigated in backcross and F 2 generations derived from two crosses between the brown seeded cultivar S-67 and two, true breeding, yellow seeded lines, PGRC/E 21164 and PGRC/E 21224 of the Plant Gene Resources Centre of Ethiopia. F 1 seed was identical in colour to self-pollinated seed borne on the respective brown and yellow seeded parents indicating maternal control of seed colour in B. carinata. F 1 plants of reciprocal crosses produced yellow seed that was somewhat darker than that of the yellow-seeded parent indicating incomplete dominance of yellow over brown. Backcross F 1 plants, derived from the backcross to the brown parent, segregated brown and light yellow-brown/ yellow seeded plants in a 1:1 ratio, while backcrosses to both yellow seeded parents produced only light yellow-brown/yellow seeded plants. The F 2 generation segregated brown and light yellow-brown/yellow seeded plants in a 1:3 ratio. These results are in contrast to seed colour inheritance pattern observed in other Brassica species, where brown seed colour was fully or partially dominant over yellow. The apparent dominance of the absence of a gene product in yellow seed over its presence in brown seed, was explained by the presence of a dominant repressor gene (Rp) in yellow seed which inhibits the expression of seed coat pigment synthesis genes. The repressor gene is absent in brown seeded plants. The significance of this finding in relation to the development of yellow seeded lines in other Brassica species is discussed. Key words: Brassica carinata, seed colour inheritance, repressorGetinet, A. et Rakow, G. 1997. Inhibition de la pigmentation du tégument séminal chez la moutarde d'Éthiopie. Can. J. Plant Sci. 77: 501-505. Nous avons examiné le mode de transmission héréditaire de la coloration de la graine de Brassica carinata A. Braun dans des rétrocroisements et des générations F 2 issus de deux croisements entre le cultivar à graine brune S-67 et deux lignées homozygotes à graine jaune PGRC/E 21164 et PGRC/E 21224. Ces travaux étaient réalisés au Centre de ressources phytogénétiques de l'Éthiopie. Les graines F 1 avaient la même coloration que les graines obtenues par autopollinisation, portées par les parents respectifs à graines brunes et à graines jaunes, laissant penser à une régulation maternelle de la couleur des graines chez cette espèce. Le jaune des graines produites par les F 1 de croisements réciproques était quelque peu plus foncé que celui des graines du parent à graine jaune, ce qui suggérerait une dominance incomplète du jaune sur le brun. Les plantes F 1 dérivées du rétro-croisement au parent à graines brunes produisaient des descendances à graines brunes et à graines brun-jaune pâle/jaune dans la proportion 1:1, alors que dans le rétrocroisement aux deux parents à graine jaune les F 1 ne produisaient que des graines brun-jaune pâ...

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“…Chen and Heneen (1992) concluded from several rapeseed studies that non-pigmented seed coats were thinner than pigmented seed coats. This result might also be due to the moderately cubed seed shape of CDC Rocket and small seed size of 40-10 which increased the surface area of the seed or increased the ratio of seed coat: whole seed.…”

Section: Discussionmentioning

confidence: 99%

Iron Bioavailability in Low Phytate Pea

et al. 2015

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Field pea (Pisum sativum L.) seeds have high nutritional value but also contain phytate which can inhibit the absorption and utilization of nutrients. Phytate is the main storage form of phosphorus in the seeds but chelates Fe, Zn and some other micronutrients and is not well digested by monogastrics. Peas with pigmented seed coats contain polyphenols which also have anti-nutritional properties. To increase the nutritional value of field pea seeds, two low phytate lines (1-150-81 and 1-2347-144) containing higher inorganic phosphorus concentration (IN-P) and lower phytate-phosphorus concentration (PA-P) than the normal phytate varieties were developed from CDC Bronco in previous research. The objectives of this research were 1) to determine the effect of genotype and environment on iron bioavailability in a set of five pea varieties differing in phytate concentration and iron concentration using in vitro digestion/Caco-2 cell culture bioassay; 2) to determine the effect of seed coats on iron bioavailability by testing whole seeds compared to dehulled seeds in varieties differing in seed coat pigmentation using in vitro digestion/Caco-2 cell culture bioassay; 3) to determine the inheritance of iron bioavailability in field pea by evaluating recombinant inbred lines differing in phytate concentration using in vitro digestion/Caco-2 cell culture bioassay; 4) to determine the effects of pea with the low phytate trait on body weight and hemoglobin concentration of chickens. Iron concentration (FECON) did not differ significantly between normal and low phytate varieties. Iron bioavailability (FEBIO) of the two low-phytate lines was 1.4 to 1.9 times higher than that of the three normal phytate varieties, and growing environment also had a significant effect on FEBIO. Peas with pigmented seed coats contained 7 times lower FEBIO than peas with non-pigmented seed coat. The removal of the seed coat increased the FEBIO in peas with pigmented seed coat 5 to 6 times. From previous research on PR-15 recombinant inbred lines (RILs) which were developed from a cross between low phytate line 1-2347-144 and a normal phytate variety CDC Meadow, it was found that PA-P was controlled by a single gene. FEBIO, in this study, was also found to follow a bimodal frequency distribution, characteristic of single gene iii control, and it was highly correlated with PA-P in the PR-15 lines. In vivo studies were used to evaluate iron absorption of chickens fed with low and normal phytate pea diets. The diets containing the low-phytate pea lines had no significant effect on chicken body weight and hemoglobin level, compared with the diets containing normal phytate pea varieties. An unexpected high FECON was discovered in the diets that was traced to the ingredients of limestone and dicalcium-phosphate which likely affected the experimental results.iv

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Inheritance of seed colour in Brassica campestris L. and breeding for yellow-seeded B. napus L.

Cited by 59 publications

References 16 publications

The inheritance of seed colour and vernalization requirement in Brassica napus using doubled haploid populations

The inheritance of seed colour and vernalization requirement in Brassica napus using doubled haploid populations

Repression of seed coat pigmentation in Ethiopian mustard

Iron Bioavailability in Low Phytate Pea

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