Genetic diversity survey of Mentha aquatica L. and Mentha suaveolens Ehrh., mint crop ancestors

Vining, Kelly J.; Pandelova, Iovanna; Hummer, Kim E.; Bassil, Nahla V.; Contreras, Ryan N.; Neill, Kristin; Chen, Hsuan; Parrish, Amber N.; Lange, B. Markus

doi:10.1007/s10722-019-00750-4

Cited by 17 publications

(26 citation statements)

References 25 publications

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“…Genomic resources for Mentha are being developed to better understand the genetic basis of Verticillium wilt and oil biosynthesis, with the ultimate goal of producing Verticillium-resistant cultivars that yield commercially acceptable oils [2]. Research efforts in the U.S. have focused on the proposed progenitors of 'Black Mitcham' peppermint, M. suaveolens Ehrh., M. aquatica L., and M. longifolia (L.) Huds., some accessions of which have shown resistance to Verticillium wilt [127,128]. A study by Vining et al [128] found that most accessions of M. suaveloens from the USDA National Clonal Germplasm Repository (Corvallis, OR, USA) were triploid or tetraploid and exhibited a high degree of resistance to Verticillium wilt, while accessions of M. aquatica and M. longifolia, which were octoploid or nonaploid and diploid, respectively, exhibited a range of resistance.…”

Section: Host Resistancementioning

confidence: 99%

Verticillium Wilt of Mint in the United States of America

Dung

2020

Plants

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Verticillium wilt, caused by the fungus Verticillium dahliae, is the most important and destructive disease of mint (Mentha spp.) in the United States (U.S.). The disease was first observed in commercial mint fields in the Midwestern U.S. in the 1920s and, by the 1950s, was present in mint producing regions of the U.S. Pacific Northwest. Verticillium wilt continues to be a major limiting factor in commercial peppermint (Mentha x piperita) and Scotch spearmint (Mentha x gracilis) production, two of the most important sources of mint oil in the U.S. The perennial aspect of U.S. mint production, coupled with the soilborne, polyetic nature of V. dahliae, makes controlling Verticillium wilt in mint a challenge. Studies investigating the biology and genetics of the fungus, the molecular mechanisms of virulence and resistance, and the role of soil microbiota in modulating host-pathogen interactions are needed to improve our understanding of Verticillium wilt epidemiology and inform novel disease management strategies. This review will discuss the history and importance of Verticillium wilt in commercial U.S. mint production, as well as provide a format to highlight past and recent research advances in an effort to better understand and manage the disease.

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Section: Host Resistancementioning

confidence: 99%

Verticillium Wilt of Mint in the United States of America

Dung

2020

Plants

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“…Mentha germplasm evaluations have therefore focused on those traits and efforts are ongoing to understand the underlying genetics. Vining et al (2019) also reported species accessions with undeveloped anthers, resulting in apparent male sterility. This trait could be useful for developing male-sterile cultivars.…”

Section: Uses Of the Collection In Breeding Effortsmentioning

confidence: 97%

“…Species-specific start codon targeted (SCoT) markers were also developed and used to assess genetic diversity in 12 accessions from four mint species (Khanm et al, 2017). Few co-dominant simple sequence repeat (SSR) markers are available for mint (Kumar et al, 2015;Vining et al, 2019). Kumar et al (2015) identified 54 SSRs from publicly available expressed sequence tag (EST-SSR) sequences of M. ×piperita that generated clear amplicons in 13 accessions from this species.…”

Section: Molecular Analysismentioning

confidence: 99%

“…For the majority of mint species with x = 12, diploid, triploid, tetraploid, hexaploid, octoploid, and decaploid members were observed ( Chambers and Hummer, 1994 ). Vining et al. (2019) recently reported several unusual ploidy counts, finding diploid and triploid clones in M. suaveolens and octoploid and enneaploid clones of M. aquatica in the NCGR mint collection.…”

Section: Cytologymentioning

confidence: 99%

“…The oil distilled from ‘Black Mitcham’ peppermint contains predominantly C3-oxygenated monoterpenes, with (-)-menthone and (-)-menthol being the most prominent metabolites. Essential oil analyses indicated that about half of the NCGR accessions labeled as M. aquatica accumulate (+)-menthofuran as the most abundant monoterpene (with occasionally high levels of (-)-limonene and/or 1,8-cineole as well), while the remainder had variable oil profiles and need to be further investigated ( Vining et al., 2019 ). Oils from M. suaveolens accessions are high in either (-)-carvone, piperitenone oxide, or trans-piperitone oxide ( Vining et al., 2019 ).…”

Section: Essential Oilsmentioning

confidence: 99%

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Crop Wild Relatives as Germplasm Resource for Cultivar Improvement in Mint (Mentha L.)

et al. 2020

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Mentha is a strongly scented herb of the Lamiaceae (formerly Labiatae) and includes about 30 species and hybrid species that are distributed or introduced throughout the globe. These fragrant plants have been selected throughout millennia for use by humans as herbs, spices, and pharmaceutical needs. The distilling of essential oils from mint began in Japan and England but has become a significant industrial product for the US, China, India, and other countries. The US Department of Agriculture (USDA), Agricultural Research Service, National Clonal Germplasm Repository (NCGR) maintains a mint genebank in Corvallis, Oregon. This facility preserves and distributes about 450 clones representing 34 taxa, hybrid species, advanced breeder selections, and F 1 hybrids. Mint crop wild relatives are included in this unique resource. The majority of mint accessions and hybrids in this collection were initially donated in the 1970s by the A.M. Todd Company, located in Kalamazoo, Michigan. Other representatives of diverse mint taxa and crop wild relatives have since been obtained from collaborators in Australia, New Zealand, Europe, and Vietnam. These mints have been evaluated for cytology, oil components, verticillium wilt resistance, and key morphological characters. Pressed voucher specimens have been prepared for morphological identity verification. An initial set of microsatellite markers has been developed to determine clonal identity and assess genetic diversity. Plant breeders at private and public institutions are using molecular analysis to determine identity and diversity of the USDA mint collection. Evaluation and characterization includes essential oil content, disease resistance, male sterility, and other traits for potential breeding use. These accessions can be a source for parental genes for enhancement efforts to produce hybrids, or for breeding new cultivars for agricultural production. Propagules of Mentha are available for distribution to international researchers as stem cuttings, rhizome cuttings, or seed, which can be requested through the GRIN-Global database of the US National Plant Germplasm System, subject to international treaty and quarantine regulations.

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