Phylogenetic Analysis and Molecular Diversity of Capsicum Based on rDNA-ITS Region

Shiragaki, Kumpei; Yokoi, Shuji; Tezuka, Takahiro

doi:10.3390/horticulturae6040087

Cited by 18 publications

(12 citation statements)

References 40 publications

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“…frutescens in the C . chinense complex ( Fig 1 ) was in line with previous findings of the close relationship of these species [ 62 ]. A number of researchers argued their identities as sister species within the annuum clade [ 57 , 63 ] including Walsh and Hoot [ 54 ], who similarly used the waxy gene sequence in order to delineate phylogenetic relationships among Capsicum species.…”

Section: Discussionsupporting

confidence: 92%

Reproductive compatibility in Capsicum is not necessarily reflected in genetic or phenotypic similarity between species complexes

et al. 2021

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Wild relatives of domesticated Capsicum represent substantial genetic diversity and thus sources of traits of potential interest. Furthermore, the hybridization compatibility between members of Capsicum species complexes remains unresolved. Improving our understanding of the relationship between Capsicum species relatedness and their ability to form hybrids is a highly pertinent issue. Through the development of novel interspecific hybrids in this study, we demonstrate interspecies compatibility is not necessarily reflected in relatedness according to established Capsicum genepool complexes. Based on a phylogeny constructed by genotyping using simple sequence repeat (SSR) markers and with a portion of the waxy locus, and through principal component analysis (PCA) of phenotypic data, we clarify the relationships among wild and domesticated Capsicum species. Together, the phylogeny and hybridization studies provide evidence for the misidentification of a number of species from the World Vegetable Center genebank included in this study. The World Vegetable Center holds the largest collection of Capsicum genetic material globally, therefore this may reflect a wider issue in the misidentification of Capsicum wild relatives. The findings presented here provide insight into an apparent disconnect between compatibility and relatedness in the Capsicum genus, which will be valuable in identifying candidates for future breeding programs.

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Section: Discussionsupporting

confidence: 92%

Reproductive compatibility in Capsicum is not necessarily reflected in genetic or phenotypic similarity between species complexes

et al. 2021

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“…The grouping of C. frutescens in the C. chinense complex was in line with previous findings of the close relationship of these species (Fig. 1) (Shiragaki et al, 2020). A number of researchers argued their identities as sister species within the annuum clade (Albrecht et al, 2012;Tam et al, 2009;Walsh and Hoot, 2001).…”

Section: Discussionsupporting

confidence: 90%

Reproductive Compatibility inCapsicumis not Reflected in Genetic or Phenotypic Similarity Between Species Complexes

Parry

Wang

Lin

et al. 2020

Preprint

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Wild relatives of domesticated Capsicum represent substantial genetic diversity and thus sources of traits of potential interest. Furthermore, the hybridization compatibility between members of Capsicum species complexes remains unresolved. Improving our understanding of the relationship between Capsicum species relatedness and their ability to form hybrids is a highly pertinent issue. Through the development of novel interspecific hybrids in this study, we demonstrate interspecies compatibility is not necessarily reflected in relatedness according to established Capsicum genepool complexes. Based on a phylogeny constructed by genotyping using single sequence repeat (SSR) markers and with a portion of the waxy locus, and through principal component analysis (PCA) of phenotypic data, we clarify the relationships among wild and domesticated Capsicum species. Together, the phylogeny and hybridization studies provide evidence for the misidentification of a number of species from the World Vegetable Center genebank included in this study. The World Vegetable Center holds the largest collection of Capsicum genetic material globally, therefore this may reflect a wider issue in the misidentification of Capsicum wild relatives. The findings presented here provide insight into an apparent disconnect between compatibility and relatedness in the Capsicum genus, which will be valuable in identifying candidates for future breeding programs.

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“…This vegetable is widely used in traditional cuisine providing flavor, aroma and color to various dishes around the world, and in addition, it is used in the food and cosmetics industry. It also has potential applications in medicine because it contains compounds such as flavonoids, vitamins C and E, carotenoids, minerals and especially capsaicinoids with nutraceutical, analgesic, antimicrobial, anti-obesity and anticarcinogenic effects [ 16 , 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis of Gold and Silver Nanoparticles Using Leaf Extract of Capsicum chinense Plant

et al. 2022

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So far, several studies have focused on the synthesis of metallic nanoparticles making use of extracts from the fruit of the plants from the genus Capsicum. However, as the fruit is the edible, and highly commercial, part of the plant, in this work we focused on the leaves, a part of the plant that is considered agro-industrial waste. The biological synthesis of gold (AuNPs) and silver (AgNPs) nanoparticles using aqueous extracts of root, stem and leaf of Capsicum chinense was evaluated, obtaining the best results with the leaf extract. Gold and silver nanoparticles synthesized using leaf extract (AuNPs-leaf and AgNPs-leaf, respectively) were characterized by UV-visible spectrophotometry (UV-Vis), Fourier Transform Infrared Spectroscopy with Attenuated Total Reflection (FTIR-ATR), X-ray Photoelectron Spectroscopy (XPS), Ultra Hight Resolution Scanning Electron Microscopy coupled to Energy-Dispersive X-ray spectroscopy (UHR-SEM-EDX) and Transmission Electron Microscopy (TEM), and tested for their antioxidant and antimicrobial activities. In addition, different metabolites involved in the synthesis of nanoparticles were analyzed. We found that by the use of extracts derived from the leaf, we could generate stable and easy to synthesize AuNPs and AgNPs. The AuNPs-leaf were synthesized using microwave radiation, while the AgNPs-leaf were synthesized using UV light radiation. The antioxidant activity of the extract, determined by ABTS, showed a decrease of 44.7% and 60.7% after the synthesis of the AuNPs-leaf and AgNPs-leaf, respectively. After the AgNPs-leaf synthesis, the concentration of polyphenols, reducing sugars and amino acids decreased by 15.4%, 38.7% and 46.8% in the leaf extract, respectively, while after the AuNPs-leaf synthesis only reducing sugars decreased by 67.7%. These results suggest that these groups of molecules are implicated in the reduction/stabilization of the nanoparticles. Although the contribution of these compounds in the synthesis of the AuNPs-leaf and the AgNPs-leaf was different. Finally, the AgNPs-leaf inhibited the growth of S. aureus, E. coli, S. marcescens and E. faecalis. All of them are bacterial strains of clinical importance due to their fast antibiotic resistance development.

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Phylogenetic Analysis and Molecular Diversity of Capsicum Based on rDNA-ITS Region

Cited by 18 publications

References 40 publications

Reproductive compatibility in Capsicum is not necessarily reflected in genetic or phenotypic similarity between species complexes

Reproductive compatibility in Capsicum is not necessarily reflected in genetic or phenotypic similarity between species complexes

Reproductive Compatibility inCapsicumis not Reflected in Genetic or Phenotypic Similarity Between Species Complexes

Green Synthesis of Gold and Silver Nanoparticles Using Leaf Extract of Capsicum chinense Plant

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