ArticlePlant molecular biology2020
Transcriptome and weighted correlation network analyses provide insights into inflorescence stem straightness in Paeonia lactiflora.
Article in Plant molecular biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Article
- Microtubule-associated protein PlWDL2 positively promotes stem strength in herbaceous peony.Planta · 2025Article
- Exogenous auxin-induced rapid modulation of herbaceous peony stem straightness: insights into transient cell wall metabolism responses.Plant cell reports · 2025Article
- Nitrogen reduces calcium availability by promoting oxalate biosynthesis in apple leaves.Horticulture research · 2024Article
- Identification and Functional Studies on the Role ofInternational journal of molecular sciences · 2024Article
- The herbaceous peony transcription factor WRKY41a promotes secondary cell wall thickening to enhance stem strength.Plant physiology · 2023Article
- Integration of comparative transcriptomics and WGCNA characterizes the regulation of anthocyanin biosynthesis in mung bean (Frontiers in plant science · 2023Article
- Article
- Lignin provides mechanical support to herbaceous peony (Paeonia lactiflora Pall.) stems.Horticulture research · 2020Article
- Characteristics of Microsatellites Mined from Transcriptome Data and the Development of Novel Markers inGenes · 2020Article
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Authors and funding
6 authors.
Funding
Abstract
key messageLack of structural components results in inflorescence stem bending. Differentially expressed genes involved in lignin and hemicellulose biosynthesis are vital; genes involved in cellulose and glycan biosynthesis are also relevant. An erect inflorescence stem is essential for high-quality cut herbaceous peony flowers. To explore the factors underlying inflorescence stem bending, major cell walls contents were measured, and stem structure was observed in two herbaceous peony varieties with contrasting stem straightness traits ('Da Fugui', upright; 'Chui Touhong', bending). In addition, Illumina sequencing was performed and weighted correlation network analysis (WGCNA) was used to analyze the results. The results showed significant differences in lignin, hemicellulose and soluble sugar contents, sclerenchyma and xylem areas and thickening in cell walls in pith at stage S3, when bending begins. In addition, 44,182 significantly differentially expressed genes (DEGs) were found, and these DEGs were mainly enriched in 36 pathways. Among the DEGs, hub genes involved in lignin, cellulose, and xylan biosynthesis and transcription factors that regulated these process were identified by WGCNA. These results suggested that the contents of compounds that provided cell wall rigidity were vital factors affecting inflorescence stem straightness in herbaceous peony. Genes involved in or regulating the biosynthesis of these compounds are thus important; lignin and hemicellulose are of great interest, and cellulose and glycan should not be ignored. This paper lays a foundation for developing new herbaceous peony varieties suitable for cut flowers by molecular-assisted breeding.
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