Flavonoid Biosynthesis Genes in Wheat and Wheat-Alien Hybrids: Studies into Gene Regulation in Plants with Complex Genomes

Khlestkina, Elena K.; Tereshchenko, O. Y.; Салина, Е. А.

doi:10.1007/978-94-007-1939-2_4

Cited by 4 publications

(2 citation statements)

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“…the same region of chromosome 7D of wheat 'Novosibirskaya 67', 'i:S29Pp1Pp2 PF ' or 'i:S29Pp1Pp3 P ' (Khlestkina et al 2009, Tereshchenko et al 2012. The Ra-D1 gene is a novel locus among this genic cluster.…”

Section: Xgwm1002mentioning

confidence: 97%

“…Nevertheless, inheritance of most traits has been characterized in wheat (Ausemus et al 1946, Zeven 1973, 1985, 1991, Maystrenko and Laikova 1995, Laikova et al 2005, Khlestkina 2013b). Furthermore, most genes determining anthocyanin pigmentation of different parts of wheat plant (with the exception of the genes Ra underpinning auricle pigmentation) have been mapped (Khlestkina et al 2002, 2009, 2010a,b, Dobrovolskaya et al 2006, Tereshchenko et al 2012) and identified to be transcriptional activators of the anthocyanin biosynthesis structural genes (Tereshchenko et al 2013). These genes form clusters in either homoeologous group 7 chromosomes or chromosome 2A.…”

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confidence: 98%

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Molecular and functional characterization of wheat near‐isogenic line ‘i:S29Ra’ having intensive anthocyanin pigmentation of the coleoptile, culm, leaves and auricles

2014

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Near-isogenic line of the common spring wheat cultivar 'Saratovskaya 29', designated 'i:S29Ra', has been earlier developed during eight backcrosses and selection for the red auricle colour inherited from donor 'Ulyanovka'. In this study, the line 'i:S29Ra' was characterized using 274 molecular and a number of morphological markers. It was found that the donor's genome material in 'i:S29Ra' is presented by a fragment on chromosome 7D flanked by the microsatellite loci Xgwm0044 and Xgwm1481 and carrying cluster of the genes Rc-D1 (red coleoptile), Pc-D1 (purple culm), Pls-D1 (purple leaf sheaths), Plb-D1 (purple leaf blades) and Ra-D1 (red auricles), conferring intensive anthocyanin pigmentation of the coleoptile, culm, leaf sheaths, leaf blades and auricles, respectively. The Ra-D1 is a novel locus described in wheat. The relative anthocyanin contents (OD 530 ) in different parts of wheat plant and expression level of the anthocyanin biosynthesis (AB) structural genes in auricles were compared between 'i:S29Ra' and 'S29'. In auricles of 'i: S29Ra', the OD 530 (optical density) value was twice higher and transcription of some AB structural genes was increased in comparison with 'S29', suggesting regulatory role of the Ra gene in anthocyanin biosynthesis in wheat.Key words: anthocyanin pigmentation -genotypingmicrosatellite -SNP -transcription -wheat near-isogenic lines Anthocyanin compounds are secondary plant metabolites conferring purple, pink and blue pigments on different parts of plant and related with response to pathogen attack (Izdebski 1992, Bogdanova et al.

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Section: Xgwm1002mentioning

confidence: 97%

mentioning

confidence: 98%

Molecular and functional characterization of wheat near‐isogenic line ‘i:S29Ra’ having intensive anthocyanin pigmentation of the coleoptile, culm, leaves and auricles

2014

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Regulation, evolution, and functionality of flavonoids in cereal crops

Liu

et al. 2013

Biotechnol Lett

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Flavonoids are plant secondary metabolites that contribute to the adaptation of plants to environmental stresses, including resistance to abiotic and biotic stress. Flavonoids are also beneficial for human health and depress the progression of some chronic diseases. The biosynthesis of flavonoids, which belong to a large family of phenolic compounds, is a complex metabolic process with many pathways that produce different metabolites, controlled by key enzymes. There is limited knowledge about the composition, biosynthesis and regulation of flavonoids in cereals. Improved understanding of the accumulation of flavonoids in cereal grains would help to improve human nutrition through these staple foods. The biosynthesis of flavonoids, scope for altering the flavonoid composition in cereal crops and benefits for human nutrition are reviewed here.

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