Flavonoid pattern inheritance in the allopolyploid Spartina anglica – Comparison with the parental species S. maritima and S. alterniflora

Grignon‐Dubois, Micheline; Montaudouin, Xavier de; Rezzonico, Bernadette

doi:10.1016/j.phytochem.2020.112312

Cited by 3 publications

(1 citation statement)

References 72 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Surprisingly, while flavonoids are highly representative of the phenolic compounds present in S. fragilis EAF (and to a lesser extent in CE and AF), they represented 50-60% of the TPC in S. alterniflora CE and AF, although these compounds could not be detected in the EAF due to interferences. Previous studies focusing on crude extracts found that S. alterniflora leaf extracts contained mainly flavonoids (61,62), with TPC levels similar to those presented here for CE and AF, supporting our findings. Ethanolic extracts prepared from three halophytes of the Poaceae family were found to contain amounts of phenolic compounds similar to those reported here; these extracts, including one prepared from Spartina maritima, also contained flavonoids (63).…”

Section: Discussionsupporting

confidence: 92%

Antioxidant, Mineralogenic and Osteogenic Activities of Spartina alterniflora and Salicornia fragilis Extracts Rich in Polyphenols

et al. 2021

View full text Add to dashboard Cite

Osteoporosis is an aging-related disease and a worldwide health issue. Current therapeutics have failed to reduce the prevalence of osteoporosis in the human population, thus the discovery of compounds with bone anabolic properties that could be the basis of next generation drugs is a priority. Marine plants contain a wide range of bioactive compounds and the presence of osteoactive phytochemicals was investigated in two halophytes collected in Brittany (France): the invasive Spartina alterniflora and the native Salicornia fragilis. Two semi-purified fractions, prepared through liquid-liquid extraction, were assessed for phenolic and flavonoid contents, and for the presence of antioxidant, mineralogenic and osteogenic bioactivities. Ethyl acetate fraction (EAF) was rich in phenolic compounds and exhibited the highest antioxidant activity. While S. fragilis EAF only triggered a weak proliferative effect in vitro, S. alterniflora EAF potently induced extracellular matrix mineralization (7-fold at 250 μg/mL). A strong osteogenic effect was also observed in vivo using zebrafish operculum assay (2.5-fold at 10 μg/mL in 9-dpf larvae). Results indicate that polyphenol rich EAF of S. alterniflora has both antioxidant and bone anabolic activities. As an invasive species, this marine plant may represent a sustainable source of molecules for therapeutic applications in bone disorders.

show abstract

Section: Discussionsupporting

confidence: 92%

Antioxidant, Mineralogenic and Osteogenic Activities of Spartina alterniflora and Salicornia fragilis Extracts Rich in Polyphenols

et al. 2021

View full text Add to dashboard Cite

show abstract

New cup out of old coffee: contribution of parental gene expression legacy to phenotypic novelty in coffee beans of the allopolyploid Coffea arabica L.

et al. 2022

View full text Add to dashboard Cite

Background and Aims Allopolyploidisation is a widespread phenomenon known to generate novel phenotypes by merging evolutionarily distinct parental genomes and regulatory networks in a single nucleus. The objective of this study was to investigate the transcriptional regulation associated with phenotypic novelty in coffee beans of the allotetraploid Coffea arabica. Methods A genome-wide comparative transcriptomic analysis was performed in C. arabica and its two diploid progenitors, C. canephora and C. eugenioides. Gene expression patterns and homeolog expression were studied on seeds at five different maturation stages. The involvement of homeologous transcriptional bias (HEB) in specific traits was addressed both by functional enrichment analyses and by the study of gene expression in the caffeine and chlorogenic acids biosynthesis pathways. Key Results Expression-level dominance in C. arabica seed was observed for most of the genes differentially expressed between the species. Approximately one third of the genes analysed showed HEB. This proportion increased during seed maturation but the biases remained equally distributed between the subgenomes. The relative expression levels of homeologs remained relatively constant during maturation and were correlated with those estimated in leaves of C. arabica and interspecific hybrids between C. canephora and C. eugenioides. Functional enrichment analyses performed on genes exhibiting HEB enabled the identification of processes potentially associated with physiological traits. The expression profiles of the genes involved in caffeine biosynthesis mirror the differences observed in the caffeine content of mature seeds of C. arabica and its parental species. Conclusions Neither of the two subgenomes is globally preferentially expressed in C. arabica seeds and homeologs appear to be co-regulated by shared trans-regulatory mechanisms. The observed HEBs are thought to be a legacy of gene expression differences inherited from diploid progenitor species. Pre-existing functional divergences between parental species appear to play an important role in controlling the phenotype of C. arabica seeds.

show abstract

Impact Assessment of Iron Magnetic Nanomaterials Bearing Porphyrins on Wheat: Towards Sustainable Wastewater Remediation

Gamito,

Monteiro,

Dias

et al. 2023

Preprint

View full text Add to dashboard Cite

Flavonoid pattern inheritance in the allopolyploid Spartina anglica – Comparison with the parental species S. maritima and S. alterniflora

Cited by 3 publications

References 72 publications

Antioxidant, Mineralogenic and Osteogenic Activities of Spartina alterniflora and Salicornia fragilis Extracts Rich in Polyphenols

Antioxidant, Mineralogenic and Osteogenic Activities of Spartina alterniflora and Salicornia fragilis Extracts Rich in Polyphenols

New cup out of old coffee: contribution of parental gene expression legacy to phenotypic novelty in coffee beans of the allopolyploid Coffea arabica L.

Impact Assessment of Iron Magnetic Nanomaterials Bearing Porphyrins on Wheat: Towards Sustainable Wastewater Remediation

Contact Info

Product

Resources

About