Chloroplast Genome of the Soap Bark Tree Quillaja saponaria

Vizoso, Paula; Undurraga, Soledad; Velozo, J.

doi:10.3389/fevo.2019.00104

Cited by 3 publications

(3 citation statements)

References 38 publications

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“…To assess the effect of UV‐B radiation on plant growth, we determined the expression level of genes coding for different proteins involved in cell wall expansion. We used the Q. saponaria genome assembly draft available at GenBank (accession GCA_003338715.1; Vizoso et al, 2019) to design specific qPCR (quantitative polymerase chain reaction) primers. However, as no annotation or gene prediction data set was publicly available for this genome assembly, we conducted an automatic annotation step by aligning all available scaffolds ( N = 48,349) against the NCBI Non‐Redundant database (November 2019) with Diamond blastx (using default parameters).…”

Section: Methodsmentioning

confidence: 99%

Sunspot activity influences tree growth: Molecular evidence and ecological implications

et al. 2022

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Solar activity has a significant influence on Earth's climate and may drive many biological processes. Here, we measured growth in 11 tree species distributed along an ≈600‐km latitudinal gradient in South‐Central Chile, recording the width of their growth‐rings among periods of maximum (highest number of sunspots) and minimum (lowest number of sunspots) solar activity. In one of these species, Quillaja saponaria, we experimentally assessed three ecophysiological traits (CO2 fixation through photosynthesis [Amax], growth and leaf production) as well as the expression of five genes related to cell wall elongation and expansion following exposure to high and low levels of UV‐B radiation, simulating scenarios of maximum and minimum solar activity, respectively. We found lower tree growth during the periods of maximum solar activity, with this trend being more evident at lower latitudes, where UV‐B radiation is higher. Exposure of Q. saponaria to higher levels of UV‐B affected the ecophysiological parameters, revealing a decrease in Amax, growth and leaf production. In addition, higher levels of UV‐B led to repression in four of the five genes studied. Our results may help foresee environmental scenarios for different plant species associated with solar activity.

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Section: Methodsmentioning

confidence: 99%

Sunspot activity influences tree growth: Molecular evidence and ecological implications

et al. 2022

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“…In 2015, 12 microsatellites were identified in the QS nuclear genome, which were used to analyze the pattern of genetic variation and its relationship with the spatial distribution and anthropogenic influence in Chile (Letelier et al, 2015). In 2019, a draft of the QS chloroplast genome was released (Vizoso et al, 2019). Its sequence length is 0.133 Mbp, harboring 112 putative genes, including those encoding Photosystems, RuBisCO, Cytochrome b/f complex, ribosomal subunits, among others.…”

Section: Advances In the Characterization Of Genes Involved In Saponimentioning

confidence: 99%

“…To the authors' knowledge, there are no other reports about the QS or QB nuclear genome or plastome sequences. According to Vizoso et al (2019), the photosynthetic rate and methyl jasmonate-associated defensive mechanisms could be indirectly associated to saponin accumulation. They related the saponin contents with abiotic factors, under which chloroplasts may act as environmental sensors, mediating the signaling required to increase the accumulation of triterpene saponins as a defensive response.…”

Section: Advances In the Characterization Of Genes Involved In Saponimentioning

confidence: 99%

Saponin production from Quillaja genus species. An insight into its applications and biology

Guerra

Sepúlveda

2021

Sci. agric. (Piracicaba, Braz.)

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Quillaja genus (Quillajaceae family) is endemic to South America, where is represented by two species, Quillaja saponaria and Quillaja brasiliensis. One outstanding characteristic of these forest tree species is their production of saponins, a family of amphipathic glycosides, involved in the defensive response of plants against biotic and abiotic factors. Saponins are metabolites of economic importance due to their chemical and physical properties. Basic and applied research efforts performed during the last decades, mainly on Q. saponaria, have placed these compounds as an important raw material in industrial areas, such as food and beverage, cosmetics, vaccine production, biopesticides, among others. In this review, we summarize information on saponins from Quillaja species during the last years, analyzing current developments by application areas, as well as their chemical composition and properties. We also describe the general advances in revealing saponin biosynthesis pathways, related genes and Quillaja genomes, as well as the conservation status, domestication processes, and perspectives in the context of implementing genetic improvement programs.

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Comparative Analyses and Phylogenetic Relationships between Cryptomeria fortunei and Related Species Based on Complete Chloroplast Genomes

Zhang¹,

Yang²,

Guo³

et al. 2020

Phyton

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Chloroplast Genome of the Soap Bark Tree Quillaja saponaria

Cited by 3 publications

References 38 publications

Sunspot activity influences tree growth: Molecular evidence and ecological implications

Sunspot activity influences tree growth: Molecular evidence and ecological implications

Saponin production from Quillaja genus species. An insight into its applications and biology

Comparative Analyses and Phylogenetic Relationships between Cryptomeria fortunei and Related Species Based on Complete Chloroplast Genomes

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