Aroma and metabolite profiling in duckweeds: Exploring species and ecotypic variation to enable wider adoption as a food crop

Smith, Kellie E.; Schäfer, Martin; Lim, Mui; Robles-Zazueta, Carlos A.; Cowan, Laura; Fisk, Ian D.; Xu, Shuqing; Murchie, Erik H.

doi:10.1016/j.jafr.2024.101263

Cited by 3 publications

(1 citation statement)

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“…With a biomass duplication rate of less than two days, S. polyrhiza is one of the world's fastest-growing angiosperms (Ziegler et al 2015). Due to its high levels of flavonoids and amino acids, S. polyrhiza is one of the best organisms for producing food resources and pharmaceuticals (Acosta et al 2021;Baek et al 2021;Zhao et al 2015;Smith et al 2024). To fully realise its industrial potential, specific improvements on its growth and metabolite production are needed, which requires a detailed understanding of the genetic mechanisms controlling these traits.…”

Section: Introductionmentioning

confidence: 99%

Genome-Wide Association Study of Metabolic Traits in the DuckweedSpirodela polyrhiza

Höfer,

Schäfer,

Wang

et al. 2024

Preprint

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The exceptionally high growth rate and high contents of flavonoids make the giant duckweed Spirodela polyrhiza (L.) Schleid. (Arales: Lemnaceae) an ideal organism for food production and metabolic engineering. To facilitate this, identification of the genetic basis underlying growth and metabolic traits is essential. Here, we characterized the genetics underpinning the growth and contents of 42 metabolites in S. polyrhiza using a genome-wide association (GWA) approach. We found that biomass positively correlates with contents of many free amino acids, including L-Glutamine, L-Tryptophane and L-Serine, but negatively correlates with many specialized metabolites, such as flavonoids. GWA analysis showed that several candidate genes were simultaneously associated with several metabolic traits, qualifying them as targets for growth manipulation and metabolic engineering. Together, this study provides insights into the metabolic diversity of S. polyrhiza and its underlying genetic architecture, paving the way for industrial applications of this plant via targeted breeding or genetic engineering.

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Section: Introductionmentioning

confidence: 99%

Genome-Wide Association Study of Metabolic Traits in the DuckweedSpirodela polyrhiza

Höfer,

Schäfer,

Wang

et al. 2024

Preprint

Self Cite

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Duckweed: exploring its farm-to-fork potential for food production and biorefineries

Ujong,

Naibaho,

Ghalamara

et al. 2025

Sustainable Food Technol.

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Genome‐wide association study of metabolic traits in the giant duckweed Spirodela polyrhiza

Höfer,

Schäfer,

Wang

et al. 2024

Plant Biol J

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The exceptionally high growth rate and high flavonoid content make the giant duckweed Spirodela polyrhiza (L.) Schleid. (Arales: Lemnaceae Martinov) an ideal organism for food production and metabolic engineering. To facilitate this, identification of the genetic basis underlying growth and metabolic traits is essential. Here, we analysed growth and content of 42 metabolites in 137 S. polyrhiza genotypes and characterized the genetics underpinning these traits using a genome‐wide association (GWA) approach. We found that biomass positively correlated with the content of many free amino acids, including L‐glutamine, L‐tryptophan, and L‐serine, but negatively correlated with specialized metabolites, such as flavonoids. GWA analysis showed that several candidate genes involved in processes such as photosynthesis, protein degradation, and organ development were jointly associated with multiple metabolic traits. The results suggest the above genes are suitable targets for simultaneous optimization of duckweed growth and metabolite levels. This study provides insights into the metabolic diversity of S. polyrhiza and its underlying genetic architecture, paving the way for industrial applications of this plant via targeted breeding or genetic engineering.

show abstract

Aroma and metabolite profiling in duckweeds: Exploring species and ecotypic variation to enable wider adoption as a food crop

Cited by 3 publications

References 61 publications

Genome-Wide Association Study of Metabolic Traits in the DuckweedSpirodela polyrhiza

Genome-Wide Association Study of Metabolic Traits in the DuckweedSpirodela polyrhiza

Duckweed: exploring its farm-to-fork potential for food production and biorefineries

Genome‐wide association study of metabolic traits in the giant duckweed Spirodela polyrhiza

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