ArticleBMC genomics2020
Transcriptome analysis provides insights into the non-methylated lignin synthesis in Paphiopedilum armeniacum seed.
Article in BMC genomics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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21 citing papers in PubMed, 44 citations in OpenAlex.
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- Identification of key genes involved in lignin and flavonoid accumulation during Tilia tuan seed maturation.Plant cell reports · 2024Article
- The jacktree genome and population genomics provides insights for the mechanisms of the germination obstacle and the conservation of endangered ornamental plants.Horticulture research · 2024Article
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- Overexpression of PnMYB2 from Panax notoginseng induces cellulose and lignin biosynthesis during cell wall formation.Planta · 2022Article
- Transcriptome and Coexpression Network Analyses Provide In-Sights into the Molecular Mechanisms of Hydrogen Cyanide Synthesis during Seed Development in Common Vetch (International journal of molecular sciences · 2022Article
- Biochemical and transcriptomic analyses of the symbiotic interaction between Cremastra appendiculata and the mycorrhizal fungus Coprinellus disseminatus.BMC plant biology · 2022Article
- Shading decreases lodging resistance of wheat under different planting densities by altering lignin monomer composition of stems.Frontiers in plant science · 2022Article
- A Walk Through the Maze of Secondary Metabolism in Orchids: A Transcriptomic Approach.Frontiers in plant science · 2022Review
- Cytological, Biochemical, and Transcriptomic Analyses of a Novel Yellow Leaf Variation in aGenes · 2021Article
- Characterization of phytohormone and transcriptome profiles during protocorm-like bodies development of Paphiopedilum.BMC genomics · 2021Article
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Authors and funding
14 authors at 4 institutions in 1 country.
Funding
Abstract
backgroundsPaphiopedilum is an important genus of the orchid family Orchidaceae and has high horticultural value. The wild populations are under threat of extinction because of overcollection and habitat destruction. Mature seeds of most Paphiopedilum species are difficult to germinate, which severely restricts their germplasm conservation and commercial production. The factors inhibiting germination are largely unknown.
resultsIn this study, large amounts of non-methylated lignin accumulated during seed maturation of Paphiopedilum armeniacum (P. armeniacum), which negatively correlates with the germination rate. The transcriptome profiles of P. armeniacum seed at different development stages were compared to explore the molecular clues for non-methylated lignin synthesis. Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis showed that a large number of genes associated with phenylpropanoid biosynthesis and phenylalanine metabolism during seed maturation were differentially expressed. Several key genes in the lignin biosynthetic pathway displayed different expression patterns during the lignification process. PAL, 4CL, HCT, and CSE upregulation was associated with C and H lignin accumulation. The expression of CCoAOMT, F5H, and COMT were maintained at a low level or down-regulated to inhibit the conversion to the typical G and S lignin. Quantitative real-time RT-PCR analysis confirmed the altered expression levels of these genes in seeds and vegetative tissues.
conclusionsThis work demonstrated the plasticity of natural lignin polymer assembly in seed and provided a better understanding of the molecular mechanism of seed-specific lignification process.
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