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Cited by 522

The DOI matches its Crossref record; 49 of the 49 references it cites were found in a registry or an index.

Molecular genetics of blood‐fleshed peach reveals activation of anthocyanin biosynthesis by NAC transcription factors

Open access
Zhou, Hui, Lin‐Wang, Kui, Wang, Huiliang, Gu, Chao, Dare, Andrew P., Espley, Richard V., He, Huaping, Allan, Andrew C., Han, Yuepeng·2015·The Plant Journal
DOI 10.1111/tpj.12792
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Abstract

Summary: Anthocyanin pigmentation is an important consumer trait in peach (Prunus persica). In this study, the genetic basis of the blood‐flesh trait was investigated using the cultivar Dahongpao, which shows high levels of cyanidin‐3‐glucoside in the mesocarp. Elevation of anthocyanin levels in the flesh was correlated with the expression of an R2R3 MYB transcription factor, Pp MYB 10.1. However, Pp MYB 10.1 did not co‐segregate with the blood‐flesh trait. The blood‐flesh trait was mapped to a 200‐kb interval on peach linkage group (LG) 5. Within this interval, a gene encoding a NAC domain transcription factor (TF) was found to be highly up‐regulated in blood‐fleshed peaches when compared with non‐red‐fleshed peaches. This NAC TF, designated BLOOD (BL), acts as a heterodimer with Pp NAC 1 which shows high levels of expression in fruit at late developmental stages. We show that the heterodimer of BL and Pp NAC 1 can activate the transcription of Pp MYB 10.1, resulting in anthocyanin pigmentation in tobacco. Furthermore, silencing the BL gene reduces anthocyanin pigmentation in blood‐fleshed peaches. The transactivation activity of the BL‐Pp NAC 1 heterodimer is repressed by a SQUAMOSA promoter‐binding protein‐like TF, Pp SPL 1. Low levels of Pp MYB 10.1 expression in fruit at early developmental stages is probably attributable to lower levels of expression of Pp NAC 1 plus the presence of high levels of repressors such as Pp SPL 1. We present a mechanism whereby BL is the key gene for the blood‐flesh trait in peach via its activation of Pp MYB 10.1 in maturing fruit. Partner TF s such as basic helix–loop‐helix proteins and NAC 1 are required, as is the removal of transcriptional repressors.

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Metadata

Authors
Zhou, H., Lin‐Wang, K., Wang, H., Gu, C., Dare, A. P., Espley, R. V., He, H., Allan, A. C., & Han, Y.
Venue
The Plant Journal
Publisher
Wiley
Published
2015-03-04
Volume
82
Issue
1
Pages
105-121
ISSN
  • 0960-7412 (ISSN-L)
  • 1365-313X
DOI
10.1111/tpj.12792
OpenAlex
W2113707341
Cited by
522
References
49
FWCI
10.04
Type
journal article
Language
en
Open access
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