Germplasm sources of protective glandular leaf trichomes of hop (Humulus lupulus)

Naraine, Steve G. U.; Small, Ernest

doi:10.1007/s10722-017-0540-2

Cited by 6 publications

(12 citation statements)

References 12 publications

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“…Considering the remarkable genetic diversity harbored by regions of Asia (45,143) and its hypothesized importance for the origin and domestication of the genus (23,69,105), this needs to be addressed urgently. This could be achieved not only by making use of large germplasm bank collections (73) but also by sourcing from vast herbarium collections. For example, the Global Biodiversity Information Facility (https://www.gbif.org/) lists 553 preserved specimens from China, 262 from Pakistan, and 331 from the Russian Federation that are deposited in herbaria worldwide.…”

Section: Global Cannabis Samplingmentioning

confidence: 99%

“…Considering the remarkable genetic diversity harbored by regions of Asia (45,143) and its hypothesized importance for the origin and domestication of the genus (23,69,105), this needs to be urgently addressed. Emphasis should be placed on sampling landraces and wild/naturalized lines by making use of germplasm bank (73) and herbarium collections. Finally, voucher information and passport data (including putative material type and origin) need to be properly recorded, as conventionally done in other phylogeographic studies.…”

Section: Landrace: Traditionally Cultivated Variety That Is Adapted To Local Growing Conditions and Farming Practicesmentioning

confidence: 99%

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The Genomics ofCannabisand Its Close Relatives

Kovalchuk

Pellino

Rigault

et al. 2020

Annu. Rev. Plant Biol.

128

108

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Cannabis sativa L. is an important yet controversial plant with a long history of recreational, medicinal, industrial, and agricultural use, and together with its sister genus Humulus, it represents a group of plants with a myriad of academic, agricultural, pharmaceutical, industrial, and social interests. We have performed a meta-analysis of pooled published genomics data, andwe present a comprehensive literature review on the evolutionary history of Cannabis and Humulus, including medicinal and industrial applications. We demonstrate that current Cannabis genome assemblies are incomplete, with ∼10% missing, 10–25% unmapped, and 45S and 5S ribosomal DNA clusters as well as centromeres/satellite sequences not represented. These assemblies are also ordered at a low resolution, and their consensus quality clouds the accurate annotation of complete, partial, and pseudogenized gene copies. Considering the importance of genomics in the development of any crop, this analysis underlines the need for a coordinated effort to quantify the genetic and biochemical diversity of this species.

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Section: Global Cannabis Samplingmentioning

confidence: 99%

“…Considering the remarkable genetic diversity harbored by regions of Asia (45,143) and its hypothesized importance for the origin and domestication of the genus (23,69,105), this needs to be urgently addressed. Emphasis should be placed on sampling landraces and wild/naturalized lines by making use of germplasm bank (73) and herbarium collections. Finally, voucher information and passport data (including putative material type and origin) need to be properly recorded, as conventionally done in other phylogeographic studies.…”

Section: Landrace: Traditionally Cultivated Variety That Is Adapted To Local Growing Conditions and Farming Practicesmentioning

confidence: 99%

The Genomics ofCannabisand Its Close Relatives

Kovalchuk

Pellino

Rigault

et al. 2020

Annu. Rev. Plant Biol.

128

108

View full text Add to dashboard Cite

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“…However, hop oil seems to have potential for controlling several insect pests. Although the functional role of essential oils and their various scents in hop plants is not yet fully understood, they are most likely functioning as a repellent against various herbivores and pathogens (Aydin et al 2017;Bedini et al 2015Bedini et al , 2016Brendel et al 2019;Gerhäuser 2005;naraine and Small 2017;Reher et al 2019;Wang and Dixon 2009).…”

Section: Hormone Replacement Therapy (Hrt)mentioning

confidence: 99%

Hop (Humulus lupulus L.): Traditional and Present Use, and Future Potential

Korpelainen

Pietiläinen

2021

Econ Bot

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Hop (Humulus lupulus L.): Traditional and Present Use, and Future Potential. Hop (Humulus lupulus) is best known for its use in beer brewing owing to its bittering flavor and floral aroma. Today, the brewing industry uses as much as 98% of the produced hop crop worldwide. However, there are many other uses, some of them known since prehistoric times. Hops, the cone–like female structures called strobili, are the most frequently used part of the hop plant, but other tissues are of interest as well. The present review compiles existing knowledge of the chemical and pharmacological properties, traditional and present uses and further use potential, genetic resources, and breeding attempts in H. lupulus, and discusses climate change challenges to hop production. It contains hundreds of phytochemicals, and some of the secondary metabolites have definite potential pharmacological and medicinal value, but further investigations are desirable. Hop substances are potential alternatives, e.g., in antimicrobial, cancer, metabolic syndrome, and hormone replacement therapy treatments, as well as insecticides, preservatives, and fragrances. There are presently a few hundred cultivated hop varieties, and new cultivars are being developed and tested. Future hop breeding efforts with different quality and adaptation targets can utilize existing genetic resources, such as wild populations and landraces present in many regions.

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“…In general, beta acids have been ignored by the brewing industry, being essentially insoluble in wort and nearly absent from finished beer products, but they may play a vital role in invertebrate pest deterrence (Naraine and Small, 2017), and in the development of natural health products and other therapeutic agents, being strongly active against Gram-positive bacteria (Schmalreck et al, 1975) and protozoa (Srinivasan et al, 2004), while possessing anti-cancer and anti-inflammatory activities (Zhao et al, 2005;Zanoli and Zavatti 2008;Van Cleemput et al, 2009).…”

Section: Alpha and Beta Acid Quantitation And Diversitymentioning

confidence: 99%

“…A thorough investigation of the phytochemical content of hops leaves was conducted, as this is the principal location for colonization and invasion by pathogenic microorganisms (Roye and Thomas, 1971) and feeding damage caused by invertebrate herbivores (Naraine and Small, 2017). While abaxial peltate glandular trichomes have been previously reported to produce a mixture of prenylchalcones, beta acids and terpene derivatives (Sugiyama et al, 2006;Wang et al, 2008;Patzak et al, 2015), to our knowledge, the chemical composition of vegetative photosynthetic tissues from hops leaves has not been previously reported.…”

Section: Leaf Flavonol Diversitymentioning

confidence: 99%

Phytochemical Characterization of Wild Hops (Humulus lupulus ssp. lupuloides) Germplasm Resources From the Maritimes Region of Canada

et al. 2019

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A survey was conducted in the Maritimes region of eastern Canada to measure the phytochemical diversity of prenylchalcone, soft resins (alpha & beta acids), and flavonol constituents from 30 unique wild-growing populations of hops (Humulus lupulus L.). Based on cone chemometrics, the majority of accessions (63.3%) are native Humulus lupulus ssp. lupoloides, with cones containing both xanthogalenol and 4'-O-methyl xanthohumol as chemotaxonomic indicator molecules. Interestingly, the leaves of all verified Humulus lupulus ssp. lupulus accessions accumulated high proportions (>0.20 total flavonols) of two acylated flavonol derivatives (kaempferol-3-O-(6''-O-malonyl)-β-D-glucopyranoside; quercetin-3-O-(6''-O-malonyl)-β-D-glucopyranoside), both previously unreported from hops leaves. The native lupuloides accessions examined possess only trace amounts of this compound in their leaves (<0.10 total flavonols), suggesting its potential utility as a novel, leaf-derived chemotaxonomic marker for subspecies identification purposes. A leaf-derived taxonomic marker is useful for identifying wild-growing accessions, as leaves are present throughout the entire growing season, whereas cones are only produced late in summer. Additionally, the collection of cones from 10-meter tall wild plants in overgrown riparian habitats is often difficult. The total levels of alpha acids, beta acids, and prenylchalcones in wild-collected Maritimes lupuloides cones are markedly higher than those previously reported for lupuloides individuals in the westernmost extent of its native range and show potentially valuable traits for future cultivar development, while some may be worthy of immediate commercial release. The accessions will be maintained as a core germplasm resource for future cultivar development.

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Germplasm sources of protective glandular leaf trichomes of hop (Humulus lupulus)

Cited by 6 publications

References 12 publications

The Genomics ofCannabisand Its Close Relatives

The Genomics ofCannabisand Its Close Relatives

Hop (Humulus lupulus L.): Traditional and Present Use, and Future Potential

Phytochemical Characterization of Wild Hops (Humulus lupulus ssp. lupuloides) Germplasm Resources From the Maritimes Region of Canada

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