Introduction to ‘AGRUMED: Archaeology and history of citrus fruit in the Mediterranean: Acclimatization, diversification, uses’

Zech-Matterne, Véronique; Fiorentino, Girolamo; Coubray, Sylvie; Luro, François

doi:10.4000/books.pcjb.2240

Cited by 6 publications

(4 citation statements)

References 21 publications

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“…The diversification of Xci was dated to the early 13 th century in its area of origin, which was crossed at the time by the Southern Silk Road 26 , linking Eastern and Western civilizations through trading. The westward commerce of goods, including citrus, which have been found in Mediterranean countries since −500 CE 57 , as well as the breeding of citrus varieties for cooking and for raw eating 26 , could have dispersed and isolated the pathogen into its three known pathotypes. More recent global changes observed between the 17th and 20th centuries, such as the spice trade and the development of a worldwide colonial agriculture might also be important factors in the apparently intense diversification of genotypes (and their global spread) 24 .…”

Section: Discussionmentioning

confidence: 99%

Herbarium specimen sequencing allows precise dating of Xanthomonas citri pv. citri diversification history

et al. 2023

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Herbarium collections are an important source of dated, identified and preserved DNA, whose use in comparative genomics and phylogeography can shed light on the emergence and evolutionary history of plant pathogens. Here, we reconstruct 13 historical genomes of the bacterial crop pathogen Xanthomonas citri pv. citri (Xci) from infected Citrus herbarium specimens. Following authentication based on ancient DNA damage patterns, we compare them with a large set of modern genomes to estimate their phylogenetic relationships, pathogenicity-associated gene content and several evolutionary parameters. Our results indicate that Xci originated in Southern Asia ~11,500 years ago (perhaps in relation to Neolithic climate change and the development of agriculture) and diversified during the beginning of the 13th century, after Citrus diversification and before spreading to the rest of the world (probably via human-driven expansion of citriculture through early East-West trade and colonization).

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Section: Discussionmentioning

confidence: 99%

Herbarium specimen sequencing allows precise dating of Xanthomonas citri pv. citri diversification history

et al. 2023

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“…The diversification of Xci was dated to the early 13 th century in its area of origin, which was crossed at the time by the Southern Silk Road (Talon et al 2020), linking Eastern and Western civilizations through trading. The westward commerce of goods, including citrus, which have been found in Mediterranean countries since -500 (Zech-Matterne et al 2017), as well as the breeding of citrus varieties for cooking and for raw eating (Talon et al 2020), could have dispersed and isolated the pathogen into its three known pathotypes. More recent global changes observed between the 17 th and 20 th centuries, such as the spice trade and the development of a worldwide colonial agriculture might also be important factors in the apparently intense diversification of genotypes (and their global spread) (Campos et al 2021).…”

Section: Discussionmentioning

confidence: 99%

Herbarium Specimen Sequencing Allows Precise Datation ofXanthomonas citripv.citriDiversification History

Campos

Pruvost

Boyer

et al. 2022

Preprint

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Over the past decade, the field of ancient genomics has triggered considerable progress in the study of various pathogens, including those affecting crops. In this context, herbarium collections have been an important source of dated, identified and preserved DNA, whose use in comparative genomics and phylogeography may shed light into the emergence and evolutionary history of plant pathogens. In this study, we reconstructed 13 historical genomes of the bacterial crop pathogen Xanthomonas citri pv. citri (Xci) from infected citrus herbarium specimens using a shotgun-based deep sequencing strategy. Following authentication of the historical genomes based on ancient DNA damage patterns, we compared them to a large set of modern genomes to reconstruct their phylogenetic relationships, pathogeny-associated genes content and estimate several evolutionary parameters, using Bayesian tip-dating calibration and phylogeography inferences. Our results reveal that Xci originated in Southern Asia ~11,500 years ago and diversified during the beginning of the 13th century, after Citrus diversification and before spreading to the rest of the world. This updated scenario links Xci specialization to Neolithic climatic change and the development of agriculture, and its diversification to the human-driven expansion of citriculture through the early East-West trade and later colonization. The analysis of data obtained from such historical specimens is challenging and must undergo adapted treatment before being compared to modern samples. Nevertheless, we confirm here that herbarium collections are a precious tool to improve the knowledge of the evolutionary history of plant pathogens.

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“…The genus Citrus covers a large diversity of trees and shrubs, containing 16 species (according to Swingle’s classification) or 156 species (according to Tanaka’s classification), and is native to subtropical and tropical regions of Asia (from India to North China) and Oceania (Queensland and Australia) [ 1 ]. The high phenotypic and genetic variability of the Citrus genus is explained by the sexual compatibility between the Citrus species, allowing natural hybridization, and the long history of human intervention by interspecific hybridization to obtain more useful varieties of the plants [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Citrus Flavonoids as Promising Phytochemicals Targeting Diabetes and Related Complications: A Systematic Review of In Vitro and In Vivo Studies

et al. 2020

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The consumption of plant-based food is important for health promotion, especially concerning the prevention and management of chronic diseases. Flavonoids are the main bioactive compounds in citrus fruits, with multiple beneficial effects, especially antidiabetic effects. We systematically review the potential antidiabetic action and molecular mechanisms of citrus flavonoids based on in vitro and in vivo studies. A search of the PubMed, EMBASE, Scopus, and Web of Science Core Collection databases for articles published since 2010 was carried out using the keywords citrus, flavonoid, and diabetes. All articles identified were analyzed, and data were extracted using a standardized form. The search identified 38 articles, which reported that 19 citrus flavonoids, including 8-prenylnaringenin, cosmosiin, didymin, diosmin, hesperetin, hesperidin, isosiennsetin, naringenin, naringin, neohesperidin, nobiletin, poncirin, quercetin, rhoifolin, rutin, sineesytin, sudachitin, tangeretin, and xanthohumol, have antidiabetic potential. These flavonoids regulated biomarkers of glycemic control, lipid profiles, renal function, hepatic enzymes, and antioxidant enzymes, and modulated signaling pathways related to glucose uptake and insulin sensitivity that are involved in the pathogenesis of diabetes and its related complications. Citrus flavonoids, therefore, are promising antidiabetic candidates, while their antidiabetic effects remain to be verified in forthcoming human studies.

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Introduction to ‘AGRUMED: Archaeology and history of citrus fruit in the Mediterranean: Acclimatization, diversification, uses’

Cited by 6 publications

References 21 publications

Herbarium specimen sequencing allows precise dating of Xanthomonas citri pv. citri diversification history

Herbarium specimen sequencing allows precise dating of Xanthomonas citri pv. citri diversification history

Herbarium Specimen Sequencing Allows Precise Datation ofXanthomonas citripv.citriDiversification History

Citrus Flavonoids as Promising Phytochemicals Targeting Diabetes and Related Complications: A Systematic Review of In Vitro and In Vivo Studies

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