Abstract
Cyclocarya paliurus leaves contain abundant flavonoids with beneficial bioactivities and antioxidant activities. Red leaves of Cyclocarya paliurus have been considered to have higher flavonoids content, while the flavonoid derivatives accumulation pattern was still unclear. To uncover the flavonoids variation mechanism during red young leaf growing, transcriptome and metabolome analysis on Cyclocarya paliurus clone with red leaves was made. Leaves samples of young red leaf, half red leaf and old green leaf stage were researched. The result showed that young red leaf contained higher anthocyanin and quercetin contents, while lower kaempferol and catechins contents compared to old green leaf. And flavonoid biosynthesis-related unigenes (UDP-flavonoid glucosyl transferase) were identified for promoting anthocyanin accumulation in the flavonoid biosynthesis pathway. Besides, transcription factors were also found to influence the flavonoids variation pattern in the red leave of C. paliurus. These findings provide information about the relationship between flavonoids and leaf color, and will be useful for C. paliurus selection.
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Data availability
The datasets generated during and/or analyzed during the current study are not publicly available due the data also form part of an ongoing study but are available from the corresponding author on reasonable request.
Abbreviations
- C. Paliurus :
-
Cyclocarya paliurus
- LC1:
-
The C. paliurus clone seedlings with red young leaves were used as plant materials
- FPKM:
-
The fragments per kilobase of exon per million fragments mapped
- MYB TFs:
-
MYB transcription factors
- A:
-
Old green leaf period
- B:
-
Semi red leaf period
- C:
-
Young red leaf period
- ABLog2 FC:
-
Log2 fold change between A and B stage
- BCLog2 FC:
-
Log2 fold change between B and C stage
- ACLog2 FC:
-
Log2 fold change between A and C stage
- PAL:
-
Phenylalanine ammonia-lyase
- C4H:
-
Cinnamic acid 4-hydroxylase
- 4CL:
-
4 Coumarate CoA ligase
- CHS:
-
Chalcone synthase
- CHI:
-
Chalcone isomerase
- F3H:
-
Flavanone 3-hydroxylase
- CYP75A:
-
Flavonoid 3ʹ, 5ʹ-hydroxylase
- CYP75B1:
-
Flavonoid 3ʹ-monooxygenase
- FLS:
-
Flavonol synthase
- UFGT:
-
UDP-flavonoid glucosyl transferase
- DFR:
-
Dihydroflavonol 4-reductase
- LAR:
-
Leucoanthocyanidin reductase
- ANS:
-
Anthocyanidin synthase
- ANR:
-
Anthocyanidin reductase
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Funding
This work was supported by the National Natural Science Foundation of China (32201541), the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) and the Doctorate Fellowship Foundation of Nanjing Forestry University. The funders had no role in studying design, data collection and analysis, decision to publish, or preparation of the manuscript.
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Sun, C., Fang, S. & Shang, X. Flavonoid biosynthesis regulation for leaf coloring of Cyclocarya paliurus. Acta Physiol Plant 45, 91 (2023). https://doi.org/10.1007/s11738-023-03571-2
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DOI: https://doi.org/10.1007/s11738-023-03571-2