ArticleTree physiology2018
Genes and gene clusters related to genotype and drought-induced variation in saccharification potential, lignin content and wood anatomical traits in Populus nigra.
Article in Tree physiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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17 citing papers in PubMed, 45 citations in OpenAlex.
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- Genomic insights into selection for heterozygous alleles and woody traits in Populus tomentosa.Plant biotechnology journal · 2023Article
- How Tree Decline Varies the Anatomical Features in Quercus brantiiPlants (Basel, Switzerland) · 2023Article
- Long-term cold, freezing and drought: overlapping and specific regulatory mechanisms and signal transduction in tea plant (Frontiers in plant science · 2023Article
- Recent progress and perspectives on physiological and molecular mechanisms underlying cold tolerance of tea plants.Frontiers in plant science · 2023Review
- Genotypic and tissue-specific variation of Populus nigra transcriptome profiles in response to drought.Scientific data · 2022Article
- Wood Formation under Severe Drought Invokes Adjustment of the Hormonal and Transcriptional Landscape in Poplar.International journal of molecular sciences · 2021Article
- Genome-wide identification and characterization of COMT gene family during the development of blueberry fruit.BMC plant biology · 2021Article
- Synergies and Entanglement in Secondary Cell Wall Development and Abiotic Stress Response in Trees.Frontiers in plant science · 2021Review
- Impact of abiotic stress on the regulation of cell wall biosynthesis inPlant biotechnology (Tokyo, Japan) · 2020Article
- A single polyploidization event at the origin of the tetraploid genome of Coffea arabica is responsible for the extremely low genetic variation in wild and cultivated germplasm.Scientific reports · 2020Article
- Structural basis for monolignol oxidation by a maize laccase.Nature plants · 2020Article
- Sustainable bioenergy for climate mitigation: developing drought-tolerant trees and grasses.Annals of botany · 2019Article
- The Systems Architecture of Molecular Memory in Poplar after Abiotic Stress.The Plant cell · 2019Article
- Article
- Engineering Drought Resistance in Forest Trees.Frontiers in plant science · 2018Review
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Authors and funding
25 authors at 8 institutions in 6 countries.
Funding
Abstract
Wood is a renewable resource that can be employed for the production of second generation biofuels by enzymatic saccharification and subsequent fermentation. Knowledge on how the saccharification potential is affected by genotype-related variation of wood traits and drought is scarce. Here, we used three Populus nigra L. genotypes from habitats differing in water availability to (i) investigate the relationships between wood anatomy, lignin content and saccharification and (ii) identify genes and co-expressed gene clusters related to genotype and drought-induced variation in wood traits and saccharification potential. The three poplar genotypes differed in wood anatomy, lignin content and saccharification potential. Drought resulted in reduced cambial activity, decreased vessel and fiber lumina, and increased the saccharification potential. The saccharification potential was unrelated to lignin content as well as to most wood anatomical traits. RNA sequencing of the developing xylem revealed that 1.5% of the analyzed genes were differentially expressed in response to drought, while 67% differed among the genotypes. Weighted gene correlation network analysis identified modules of co-expressed genes correlated with saccharification potential. These modules were enriched in gene ontology terms related to cell wall polysaccharide biosynthesis and modification and vesicle transport, but not to lignin biosynthesis. Among the most strongly saccharification-correlated genes, those with regulatory functions, especially kinases, were prominent. We further identified transcription factors whose transcript abundances differed among genotypes, and which were co-regulated with genes for biosynthesis and modifications of hemicelluloses and pectin. Overall, our study suggests that the regulation of pectin and hemicellulose metabolism is a promising target for improving wood quality of second generation bioenergy crops. The causal relationship of the identified genes and pathways with saccharification potential needs to be validated in further experiments.
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