scholarly journals Identification of candidate genes for the seed coat colour change in a Brachypodium distachyon mutant induced by gamma radiation using whole-genome re-sequencing

Genome ◽  
2017 ◽  
Vol 60 (7) ◽  
pp. 581-587 ◽  
Author(s):  
Man Bo Lee ◽  
Dae Yeon Kim ◽  
Yong Weon Seo
Keyword(s):  
Seed Coat ◽  
Brachypodium Distachyon ◽  
Colour Change ◽  
Coat Colour ◽  
Dna Polymorphisms ◽  
Cereal Crops ◽  
Whole Genome ◽  
Seed Colour ◽  
Seed Coat Colour ◽  
Mutant Lines

Brachypodium distachyon has been proposed as a model plant for agriculturally important cereal crops such as wheat and barley. Seed coat colour change from brown–red to yellow was observed in a mutant line (142-3) of B. distachyon, which was induced by chronic gamma radiation. In addition, dwarf phenotypes were observed in each of the lines 142-3, 421-2, and 1376-1. To identify causal mutations for the seed coat colour change, the three mutant lines and the wild type were subjected to whole-genome re-sequencing. After removing natural variations, 906, 1057, and 978 DNA polymorphisms were detected in 142-3, 421-2, and 1376-1, respectively. A total of 13 high-risk DNA polymorphisms were identified in mutant 142-3. Based on a comparison with DNA polymorphisms in 421-2 and 1376-1, candidate causal mutations for the seed coat colour change in 142-3 were selected. In the two independent Arabidopsis thaliana lines carrying T-DNA insertions in the AtCHI, seed colour change was observed. We propose a frameshift mutation in BdCHI1 as a causal mutation responsible for seed colour change in 142-3. The DNA polymorphism information for these mutant lines can be utilized for functional genomics in B. distachyon and cereal crops.

Selection of soybean mutant lines with altered seed coat colour and their antioxidant activity

2015 ◽  
Vol 134 (5) ◽  
pp. 573-579 ◽  
Author(s):  
Kyung Jun Lee ◽  
Jin-Baek Kim ◽  
Hong-Il Choi ◽  
Bo-Keun Ha ◽  
Si-Yong Kang ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Seed Coat ◽  
Coat Colour ◽  
Seed Coat Colour ◽  
Mutant Lines ◽  
Selection Of

INHERITANCE OF POST-HARVEST SEED DORMANCY AND KERNEL COLOUR IN SPRING WHEAT LINES

1960 ◽  
Vol 40 (1) ◽  
pp. 1-6 ◽  
Author(s):  
F. Gfeller ◽  
F. Svejda
Keyword(s):  
Seed Dormancy ◽  
Spring Wheat ◽  
Seed Coat ◽  
Coat Colour ◽  
Duplicate Genes ◽  
Seed Colour ◽  
Seed Coat Colour ◽  
Colour Reaction ◽  
Post Harvest ◽  
Wheat Lines

The inheritance of post-harvest seed dormancy was studied in F7 lines of a cross between Renown—a dormant red spring wheat, and Cascade—a non-dormant white spring wheat. The estimate of heritability of seed dormancy was 73 per cent. The inheritance of seed coat colour was controlled by three pairs of duplicate genes. Red seed coat colour was found to be associated with seed dormancy. All lines with white seed coat colour were non-dormant. The moisture content of the seed was found to influence seed dormancy. Although moisture affected the dormancy status of the seed, other factors appeared to be involved as significant differences between lines of red seed coat colour were obtained at similar moisture levels. It is postulated that the degree of seed dormancy is controlled by the multiple genes which govern seed colour. The inheritance of phenol colour reaction of the seed was monogenic, and no association was found between seed dormancy and phenol colour reaction.

Correlation Studies of Some Agronomic Characters in Sesame

1970 ◽  
Vol 6 (1) ◽  
pp. 27-31 ◽  
Author(s):  
M. Osman Khidir ◽  
H. El Gizouli Osman
Keyword(s):  
Seed Size ◽  
Seed Coat ◽  
Coat Colour ◽  
Stem Height ◽  
Agronomic Characters ◽  
Seed Coat Colour ◽  
Correlation Studies ◽  
First Maturity ◽  
Criteria For Selection ◽  
Number Of Branches

SummaryIn 90 local sesame types there was some association between seed coat colour and seed size, stem height, number of branches, number of pods, yield per plant and earliness. Forty-five coefficients show the degree of correlation between ten agronomic characters. Yield was significantly and positively correlated with all characters except the number of days to first flowering and to first maturity. Stem height, number of pods per plant and seed size seem to be the best criteria for selection in sesame.

Genotypic variation for phenolic compounds in developing and whole seeds, and storage conditions influence visual seed quality of yellow dry bean genotypes

2020 ◽  
Vol 100 (3) ◽  
pp. 284-295
Author(s):  
Mei Xiong ◽  
Mengli Zhao ◽  
Zhen-Xiang Lu ◽  
Parthiba Balasubramanian
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Seed Coat ◽  
Storage Temperature ◽  
Condensed Tannin ◽  
Consumer Preference ◽  
Coat Colour ◽  
Seed Coat Colour ◽  
Duration Of Storage

Seed coat colour is an important determinant of the visual quality of dry beans, as seeds are sold as a dry commodity. Phenolic compounds have a major effect on the colour of bean seeds. The objectives of the study were to determine the changes in phenolic compounds during seed development and in whole seeds of yellow bean genotypes with contrasting seed coat colour, and the effects of storage temperature and duration on seed phenolics and colour. Condensed tannin, phenolic acid, flavonoids, and antioxidant activity were observed as early as 10 d after flowering in the developing seeds of Arikara Yellow, which darken at harvest and during postharvest storage. In contrast, for CDC Sol and AAC Y073 seeds which remain yellow, phenolic compounds and antioxidant activity were consistently low. Seed brightness (L*) and yellow colour (b*) were negatively correlated with phenolic compounds and antioxidant activity, and conversely seed redness (a*) was positively correlated with phenolic compounds, confirming a negative influence of phenolic compounds on seed coat colour. Yellow bean genotypes had low anthocyanin but were high in β-carotene. Storage temperature influenced condensed tannin and seed coat colour, whereas the duration of storage influenced phenolic compounds, antioxidant activity, and seed coat colour. Higher temperatures (20 or 30 °C) and longer storage duration (120 or 180 d) generally resulted in darker seeds with increasing redness compared with seeds stored at 6 °C or for 60 d. AAC Y073 and CDC Sol with improved seed coat colour may increase consumer preference, value, and marketability of yellow beans.

Influence of seed coat colour associated heterogeneity on quality and storability in horse gram (Macrotyloma uniflorum)

2009 ◽  
Vol 37 (1) ◽  
pp. 232-240 ◽  
Author(s):  
N. Singh ◽  
C. Devi ◽  
A. Kak ◽  
G. Singh ◽  
A. Kumari ◽  
...  
Keyword(s):  
Seed Coat ◽  
Coat Colour ◽  
Seed Coat Colour ◽  
Horse Gram ◽  
Macrotyloma Uniflorum
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