Dataset Information

Complete Genome Sequence of Nectarine stem pitting-associated virus, Isolated from Prunus persica in Cheongdo County, South Korea.

ABSTRACT: We report here the first complete genome sequence of a South Korean isolate of Nectarine stem pitting-associated virus (NSPaV) from peach and compare it with previously described complete NSPaV genome sequences. The highest whole-genome nucleotide sequence identity was 95.3% with GenBank accession no. KT273409 (NSPaV) from the United States.

SUBMITTER: Igori D

PROVIDER: S-EPMC5578857 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature

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Complete Genome Sequence of Nectarine stem pitting-associated virus, Isolated from Prunus persica in Cheongdo County, South Korea.

Igori Davaajargal D Baek Dasom D Kim San Yeong SY Seo Euncheol E Lee Su-Heon SH Jeong Rae-Dong RD Yi Seung-In SI Bong Jin-Jong JJ Moon Jae Sun JS

Genome announcements 20170831 35

We report here the first complete genome sequence of a South Korean isolate of Nectarine stem pitting-associated virus (NSPaV) from peach and compare it with previously described complete NSPaV genome sequences. The highest whole-genome nucleotide sequence identity was 95.3% with GenBank accession no. KT273409 (NSPaV) from the United States. ...[more]

PMID: 28860259

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Project description:BACKGROUND: Flavonoids such as anthocyanins, flavonols and proanthocyanidins, play a central role in fruit colour, flavour and health attributes. In peach and nectarine (Prunus persica) these compounds vary during fruit growth and ripening. Flavonoids are produced by a well studied pathway which is transcriptionally regulated by members of the MYB and bHLH transcription factor families. We have isolated nectarine flavonoid regulating genes and examined their expression patterns, which suggests a critical role in the regulation of flavonoid biosynthesis. RESULTS: In nectarine, expression of the genes encoding enzymes of the flavonoid pathway correlated with the concentration of proanthocyanidins, which strongly increases at mid-development. In contrast, the only gene which showed a similar pattern to anthocyanin concentration was UDP-glucose-flavonoid-3-O-glucosyltransferase (UFGT), which was high at the beginning and end of fruit growth, remaining low during the other developmental stages. Expression of flavonol synthase (FLS1) correlated with flavonol levels, both temporally and in a tissue specific manner. The pattern of UFGT gene expression may be explained by the involvement of different transcription factors, which up-regulate flavonoid biosynthesis (MYB10, MYB123, and bHLH3), or repress (MYB111 and MYB16) the transcription of the biosynthetic genes. The expression of a potential proanthocyanidin-regulating transcription factor, MYBPA1, corresponded with proanthocyanidin levels. Functional assays of these transcription factors were used to test the specificity for flavonoid regulation. CONCLUSIONS: MYB10 positively regulates the promoters of UFGT and dihydroflavonol 4-reductase (DFR) but not leucoanthocyanidin reductase (LAR). In contrast, MYBPA1 trans-activates the promoters of DFR and LAR, but not UFGT. This suggests exclusive roles of anthocyanin regulation by MYB10 and proanthocyanidin regulation by MYBPA1. Further, these transcription factors appeared to be responsive to both developmental and environmental stimuli.

Dataset Information

Complete Genome Sequence of Nectarine stem pitting-associated virus, Isolated from Prunus persica in Cheongdo County, South Korea.

Publications

Complete Genome Sequence of <i>Nectarine stem pitting-associated virus</i>, Isolated from <i>Prunus persica</i> in Cheongdo County, South Korea.

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