Genome-wide association study of 23 flowering phenology traits and 4 floral agronomic traits in tree peony (<i>Paeonia</i> section <i>Moutan</i> DC.) reveals five genes known to regulate flowering time

Li, Yuying; Guo, Lili; Wang, Zhanying; Zhao, Dehui; Guo, Da‐Long; Carlson, John E.; Yin, Weilun; Hou, Xiaogai

doi:10.1093/hr/uhac263

Cited by 17 publications

(6 citation statements)

References 92 publications

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“…Peony (Paeonia suffruticosa) is a candidate national floral species and a unique aromatic plant in China, where it is known as the "king of flowers" because of its large flowers, bright colors, strong fragrance, and high ornamental, medicinal, and nutritive value [1,2]. Peony is also widely cultivated in urban parks abroad, such as Seattle in the United States, Tours in France, Okayama in Japan, and so on.…”

Section: Introductionmentioning

confidence: 99%

Screening, Identification, and Fermentation of a Biocontrol Strain against Peony Southern Blight and Extraction of Secondary Metabolites

Song,

Wang,

Sun

et al. 2024

Agriculture

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A bacterial strain (WM-37) was isolated from soil and identified as Streptomyces rectiviolaceus on the basis of morphological, physiological, biochemical, and 16S rRNA characteristics. The strain was screened regarding its potential use for controlling the pathogen causing peony southern blight. To enhance the secondary metabolite yield, submerged fermentation was conducted according to a single-factor trial and response surface method. Metabolite production peaked under the following conditions: 250.00 mL flask containing 100.00 mL culture medium consisting of 20.00 g·L−1 soluble starch, 3.86 g·L−1 ammonium sulfate, 0.50 g·L−1 sodium chloride, 0.50 g·L−1 dipotassium phosphate, 0.50 g·L−1 magnesium sulfate, and 0.01 g·L−1 ferrous sulfate; inoculation amount, 7.74%; temperature, 30 °C; initial pH, 7.00; incubation time, 7 days; and rotational speed, 160 rpm. The fermentation broth was absorbed by D101 macroporous resin and eluted with an ethanol-water gradient, after which the eluate fractions with antifungal compounds were collected, evaporated, and concentrated to obtain a crude extract. This extract was dissolved in methanol and separated by high-performance liquid chromatography. The active compound was identified as azelaic acid (C9H16O4) on the basis of ultra-high-resolution mass spectrometry and analyses of publicly available data. These findings suggest that Streptomyces rectiviolaceus WM-37 may be a viable biocontrol agent effective against the pathogen responsible for peony southern blight.

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Section: Introductionmentioning

confidence: 99%

Screening, Identification, and Fermentation of a Biocontrol Strain against Peony Southern Blight and Extraction of Secondary Metabolites

Song,

Wang,

Sun

et al. 2024

Agriculture

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“…The flowering time is one of the important indicators of the ornamental value of tree peony varieties; the tree peony typically flowers annually from mid-to-late April, spanning 50–60 days from bud to wilting. Each flower bloom lasts only 3–5 days, with group flowering lasting 10–15 days [ 1 , 2 ]. The short natural flowering period and excessive concentration of tree peony seriously affect the reputation and economic income of the tree peony production area [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Functional Characterization of PoEP1 in Regulating the Flowering Stage of Tree Peony

Lei,

Gao,

et al. 2024

Plants

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The tree peony, a traditional flower in China, has a short and concentrated flowering period, restricting the development of the tree peony industry. To explore the molecular mechanism of tree peony flowering-stage regulation, PoEP1, which regulated the flowering period, was identified and cloned based on the transcriptome and degradome data of the early-flowering mutant Paeonia ostii ‘Fengdan’ (MU) and Paeonia ostii ‘Fengdan’ (FD). Through bioinformatics analysis, expression pattern analysis, and transgene function verification, the role of PoEP1 in the regulation of tree peony flowering was explored. The open-reading frame of PoEP1 is 1161 bp, encoding 386 amino acids, containing two conserved domains. PoEP1 was homologous to the EP1 of other species. Subcellular localization results showed that the protein was localized in the cell wall and that PoEP1 expression was highest in the initial decay stage of the tree peony. The overexpression of PoEP1 in transgenic plants advanced and shortened the flowering time, indicating that PoEP1 overexpression promotes flowering and senescence and shorten the flowering time of plants. The results of this study provide a theoretical basis for exploring the role of PoEP1 in the regulation of tree peony flowering.

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“…In recent years, rapid advancements of genomic technologies have greatly promoted research on the molecular breeding and functional genomics of peony [ 11 – 15 ]. To accelerate genomic-assisted breeding and cultivar improvement using wild genetic resources, a high-quality reference genome sequence of the wild tree peony is required.…”

Section: Introductionmentioning

confidence: 99%

High-quality assembly and methylome of a Tibetan wild tree peony genome (Paeonia ludlowii) reveal the evolution of giant genome architecture

Xiao,

Li,

et al. 2023

Horticulture Research

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Tree peony belongs to one of Saxifragales families, Paeoniaceae. It is one of the most famous ornamental plants, also becomes one promising woody oil plants. Although two Paeoniaceae genomes have been released, their assembly qualities are still to be improved. Additionally, more genomes from wild peonies are needed to accelerate genomic-assisted breeding. Here we assemble a high-quality and chromosome-scale 10.3 Gb genome of a wild Tibetan tree peony (Paeonia ludlowii), which features substantial sequence divergence, including around 75% specific sequences and gene-level differentials compared to other peony genomes. Our phylogenetic analyses suggest that Saxifragales and Vitales are sister taxa, and together with Rosids, they are the sister taxon to Asterids. The P. ludlowii genome is characterized by frequent chromosome reductions, centromere rearrangements, broadly distributed heterochromatin, and recent continuous bursts of transposable elements (TEs) movement in peony, although it lacks recent whole genome duplication. These recent TE bursts appeared during the uplift and glacial period of the Qinghai-Tibet Plateau, perhaps contributing to adaptation to rapid climate changes. Further integrated analyses with methylome data revealed that genome expansion in peony might be dynamically affected by complex interactions among TE proliferation, TE removal, and DNA methylation silencing. Such interactions also impact numerous recently duplicated genes, particularly those related to oil biosynthesis and flower traits. This genome resource will not only provide the genomic basis for tree peony breeding but also shed light on the study for the evolution of huge genome structures as well as their protein-coding genes.

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Genome-wide association study of 23 flowering phenology traits and 4 floral agronomic traits in tree peony (Paeonia section Moutan DC.) reveals five genes known to regulate flowering time

Cited by 17 publications

References 92 publications

Screening, Identification, and Fermentation of a Biocontrol Strain against Peony Southern Blight and Extraction of Secondary Metabolites

Screening, Identification, and Fermentation of a Biocontrol Strain against Peony Southern Blight and Extraction of Secondary Metabolites

Functional Characterization of PoEP1 in Regulating the Flowering Stage of Tree Peony

High-quality assembly and methylome of a Tibetan wild tree peony genome (Paeonia ludlowii) reveal the evolution of giant genome architecture

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