Traditional Medicinal Plant Genetic Resources and Biotechnology Applications

Shimomura, K.; Yoshimatsu, K.; Jaziri, M.; Ishimaru, K.

doi:10.1016/b978-012737145-0/50048-7

Cited by 8 publications

(7 citation statements)

References 45 publications

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“…This underrepresentation of Southeast Asian cucumbers raises concerns that the previous studies listed above may have underestimated genetic diversity or even overlooked another distinct genetic population present in Southeast Asia. In this context, the cucumber collection deposited in the Japanese genetic resource center, the National Agriculture and Food Research Organization (NARO) Genebank, could provide the opportunity to fill this potential gap and track the eastward dispersal trajectories of cucumber, as it contains a number of genetic resources recently introduced from four Southeast Asian countries: Cambodia (Kawazu et al 2020; Matsunaga et al 2015; Tanaka et al 2016; Tanaka et al 2019; Tanaka et al 2017; Yashiro et al 2019); Laos (Okuizumi et al 2015); Myanmar (Shimomura et al 2020); and Vietnam (Kawazu et al 2017; Shimomura et al 2016; Sugiyama et al 2015), through collaborative expeditions conducted under the Plant Genetic Resources in Asia (PGRAsia) project (https://sumire.gene.affrc.go.jp/pgrasia/index_en.php).…”

Section: Introductionmentioning

confidence: 99%

Genetic characterization of cucumber genetic resources in the NARO Genebank indicates their multiple dispersal trajectories to the East

Shigita,

Shimomura,

Tran

et al. 2024

Preprint

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The cucumber (Cucumis sativus) is an economically important vegetable crop cultivated and consumed worldwide. Despite its popularity, the manner in which cucumbers were dispersed from their origin in South Asia to the rest of the world, particularly to the east, remains a mystery due to the lack of written records. In this study, we performed genotyping-by-sequencing (GBS) on 723 worldwide cucumber accessions, mainly deposited in the Japanese National Agriculture and Food Research Organization (NARO) Genebank, to characterize their genetic diversity, relationships, and population structure. Analyses based on over 60,000 genome-wide single-nucleotide polymorphisms identified by GBS revealed clear genetic differentiation between Southeast and East Asian populations, suggesting that they reached their respective region independently, not progressively. A deeper investigation of the East Asian population identified two subpopulations with different fruit characteristics, supporting the traditional classification of East Asian cucumbers into two types thought to have been introduced by independent routes. Finally, we developed a core collection of 100 accessions representing at least 93.2% of the genetic diversity present in the entire collection. The genetic relationships and population structure, their associations with geographic distribution and phenotypic traits, and the core collection presented in this study are valuable resources for elucidating the dispersal history and promoting the efficient use and management of genetic resources for research and breeding in cucumber.

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Section: Introductionmentioning

confidence: 99%

Genetic characterization of cucumber genetic resources in the NARO Genebank indicates their multiple dispersal trajectories to the East

Shigita,

Shimomura,

Tran

et al. 2024

Preprint

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“…Chemical synthesis of bioactive compounds is a difficult process owing to complex structure of compounds and high cost of chemicals (Shimomura et al 1997), while in vivo production of these compounds is influenced by cultivation period, season of collection, plant-to-plant variability, adulteration of medicinal preparations with misidentified plant species and lack of adequate methods for the production and standardization of the crop.…”

Section: Introductionmentioning

confidence: 99%

Effect of PGRs in adventitious root culture in vitro: present scenario and future prospects

Ahmad

Fatima

Ahmad

et al. 2015

Rend. Fis. Acc. Lincei

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Plants, a source of undeviating therapeutic agents, are used as a model system for new synthetic compounds and a taxonomic marker for discovery of novel compounds. The expanding awareness of the health hazards and toxicity associated with the indiscriminate use of synthetic drugs has enhanced the interest in the use of plants and plant-based drugs. The evolving commercial significance of secondary metabolites in recent years has resulted in a great interest in secondary metabolism, particularly in the prospect of varying the production of bioactive plant metabolites by means of tissue culture technology. Adventitious root culture system (AR) provides an alternative approach for the improvement and enhancement of plant-based pharmaceutical compounds. AR serves as a base for conservation of important plant species by reducing pressure on its natural populations. The present review focuses on the application of plant growth regulators (particularly auxins and cytokinins) for the initiation and establishment of adventitious root cultures through various explants in vitro. The production of root biomass could provide bioactive compounds of interest in laboratory conditions. In addition, the root biomass production, accumulation and quantification of secondary metabolites studies in different medicinal plant species have been discussed in the light of different PGRs.

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“…Over the past few years, however, the medicinal plants have regained a wide recognition due to an escalating faith in herbal medicine in view of its lesser side effects compared to allopathic medicine, in addition, the necessity of meeting the requirements of medicine for an increasing human population. Many compounds used in today's medicine have a complex structure, and synthesizing these bioactive compounds chemically at a low price is not easy (Shimomura et al, 1997). With deforestation, medicinal wealth is rapidly lost, such that many valuable plants are threatened with extinction.…”

Section: Introductionmentioning

confidence: 99%

Morphological studies and development of Ex-situ protocol for rehabilitation of threatened Rheum species under nursery conditions

Tabin¹,

Kamili²,

Gupta³

2016

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Rheum is a strong vigorous plant and can live long even in tough conditions. The Rheum species have been domesticated as medicinal plants for human consumption. Rheum species are perennial stout herbs. Rhubarb is a common English name of the genus Rheum. Rhubarb is a plant name for the many different species of Rheum, distributed in the temperate and sub tropical regions of Himalaya from Kashmir to Sikkim and growing wild in the mountains of the Western and North-western provinces of China and adjoining Tibetan territory. It is cultivated much in Europe and the United States. In Kashmir Himalaya, it ranges from an altitude of 1700 - 5500m. It is famous for its medicinal uses. Roots are long and stout. Stem is erect, hollow, sulcate, glabrous or strigose. It is native to Asia-Temperate to Asia – Tropical, from China to India, Nepal and Pakistan. In India, its found in Himachal Pradesh Jammu & Kashmir and Uttar Pradesh. In Jammu and Kashmir, it grows on open slopes and shrubberies in Kashmir, Leh and Zanaskar valley between 3000-5000 m, where R.webbianum is found. The Rheum spiciforme is also one of most known medicinal plant and is found on high altitudes of Gurez valley(3000m 5000m). Rheum also prefers a full sunny location and thrives in a moist, fertile soil. Most Rheum species can handle heavier clay soils better than many other herbs and makes a striking addition to the spring landscape. Rhubarb is propagated from seeds, seedlings, or pieces of rhizome.

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Traditional Medicinal Plant Genetic Resources and Biotechnology Applications

Cited by 8 publications

References 45 publications

Genetic characterization of cucumber genetic resources in the NARO Genebank indicates their multiple dispersal trajectories to the East

Genetic characterization of cucumber genetic resources in the NARO Genebank indicates their multiple dispersal trajectories to the East

Effect of PGRs in adventitious root culture in vitro: present scenario and future prospects

Morphological studies and development of Ex-situ protocol for rehabilitation of threatened Rheum species under nursery conditions

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