Genetic structure and population differentiation of endangered Scrophularia takesimensis (Scrophulariaceae) in Ulleung Island, Korea

Sun, Mengtao; Lim, Yong Seok; Na, Sung Tae; Lee, Jun; Shin, Hyun Chur

doi:10.11110/kjpt.2011.41.3.182

Cited by 4 publications

(5 citation statements)

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“…4), was originally from the northwestern populations, as suggested by the UPGMA dendrogram (Figs. 1 and 2 of Ma et al 2011). As demonstrated in this study, two southeastern populations, DD and SD (Fig.…”

Section: Origin and Possibility Of Multiple Introductions Of S Takessupporting

confidence: 77%

“…Based on our current results as well as the results from previous studies, several recommendations can be made for the conservation, restoration, and germplasm management of S. takesimensis (Choi et al 2012a, b;Kang et al 2009;Lim et al 2008;Ma et al 2011;Park et al 2010). First, it is important to consider the highly structured chloroplast haplotypes found in northern/southwestern (haplotype B), northeastern/eastern (haplotype A), and southeastern (haplotype I and H) regions.…”

Section: Origin and Possibility Of Multiple Introductions Of S Takesmentioning

confidence: 75%

“…), the Ministry of Environment in South Korea classified S. takesimensis as an "Endangered Wild Species Class II" (https :// speci es.nibr.go.kr/index .do/, accessed 19 May 2020). Thus, several earlier studies focused on population size monitoring, conservation status, habitat vegetation, and population genetics (Choi et al 2012a, b;Han et al 2010;Lim et al 2008;Ma et al 2011;Park et al 2010). Although morphological traits and a preliminary molecular phylogenetic study have suggested that S. takesimensis is most closely related to two other species of Scrophularia, S. alata A.Gray and its close relative S. grayanoides M.Kikuchi, neither strong support for this claim nor alternative hypotheses was provided (Han et al 2009).…”

Section: Introductionmentioning

confidence: 99%

“…Given the unknown consequences of outbreeding depression (Edmands 2007;Templeton 1986;Thornhill 1993) in S. takesimensis caused by mixing divergent gene pools via transplanting populations between north and south, the reciprocal reintroduction of genetically divergent and locally adapted populations is not recommended. In addition, the germplasms of S. takesimensis need to be separately collected and propagated, while the genetic diversity and the consequences of inbreeding and outbreeding depression need to be fully assessed (Bekessy et al 2002;Frankham et al 2011;Ma et al 2011).…”

Section: Origin and Possibility Of Multiple Introductions Of S Takesmentioning

confidence: 99%

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Origin of the critically endangered endemic species Scrophularia takesimensis (Scrophulariaceae) on Ulleung Island, Korea: implications for conservation

et al. 2020

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Scrophularia takesimensis is a critically endangered endemic species of Ulleung Island, Korea. A previous molecular phylogenetic study based on nuclear ribosomal DNA (nrDNA) internal transcribed spacer (ITS) sequences with very limited sampling suggested that it is most closely related to the clade comprising S. alata and S. grayanoides. To determine the origin of S. takesimensis, we sampled a total of 171 accessions including S. takesimensis (9 populations and 63 individuals) and two closely related species, S. alata (11 populations and 68 individuals) and S. grayanoides (5 populations and 40 individuals) from eastern Asia and sequenced ITS and two chloroplast DNA (cpDNA) non-coding regions. Previously sequenced representative species of Scrophularia (109 taxa for ITS and 80 taxa for cpDNA) were combined with our data set and analyzed. While the global scale ITS phylogenetic tree suggests monophyly for each of the three eastern Asian species, S. takesimensis appears to be more closely related (albeit weakly) to a clade containing eastern North American/Caribbean species than to either S. alata or S. grayanoides. By contrast, the global scale cpDNA phylogenetic tree demonstrates that the eastern North America/Caribbean clade is sister to a clade comprising the three eastern Asian species. In addition, the monophyletic S. takesimensis is deeply embedded within paraphyletic S. alata, sharing its most recent common ancestor with populations from Japan/Sakhalin. Two divergent, geographically structured cp haplotype groups within S. takesimensis suggest at least two independent introductions from different source areas. A new and accurate chromosome number of S. takesimensis (2n = 94) is reported and some conservation strategies are discussed.

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Section: Origin and Possibility Of Multiple Introductions Of S Takessupporting

confidence: 77%

Section: Origin and Possibility Of Multiple Introductions Of S Takesmentioning

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Section: Origin and Possibility Of Multiple Introductions Of S Takesmentioning

confidence: 99%

See 2 more Smart Citations

Origin of the critically endangered endemic species Scrophularia takesimensis (Scrophulariaceae) on Ulleung Island, Korea: implications for conservation

et al. 2020

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“…Among these species, S. takesimensis Nakai (Korean: Seom-Hyun-Sam), a Korean endemic species, has a restricted distribution on Ulleung Island. Given the highly limited distribution of S. takesimensis , previous studies on its population genetics, conservation status, and phylogenetic position have been carried out [ 9 , 10 , 11 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

An Integrative Study of Scrophularia takesimensis Nakai in an Ovalbumin-Induced Murine Model of Asthma: The Effect on T Helper 2 Cell Activation

Seo,

Song,

Kim

et al. 2024

Pharmaceutics

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Scrophularia have traditionally been used as herbal medicines to treat neuritis, sore throats, and laryngitis. In particular, S. takesimensis, a Korean endemic species with restricted distribution on Ulleung Island, holds significant resource and genetic value. However, its pharmacological properties have not been thoroughly evaluated. Thus, we provide detailed morphological characteristics and genomic information for S. takesimensis in this study. Moreover, its pharmacological activity was evaluated in an ovalbumin-induced asthma rat model, using extracts of S. takesimensis roots (100 or 200 mg/kg). The distinguishing features of S. takesimensis from related species include the presence or absence of stem wings, leaf shape, and habitat. The chloroplast (cp) genome of this species is 152,420 bp long and exhibits a conserved quadripartite structure. A total of 114 genes were identified, which included 80 protein-coding genes, 30 transfer RNA (tRNA) genes, and 4 ribosomal RNA (rRNA) genes. The gene order, content, and orientation of the S. takesimensis cp genome was highly conserved and consistent with the general structure observed in S. buergeriana and S. ningpoensis cp genomes. Confirming the anti-inflammatory effects of S. takesimensis extract (STE) using an established mouse model of ovalbumin-induced asthma, we observed reduced asthmatic phenotypes, including inflammatory cell infiltration, mucus production, and suppression of T helper 2 (Th2) cell. Furthermore, STE treatment reduced Th2 cell activation and differentiation. This study underscores the medicinal value of S. takesimensis. The importance of preserving S. takesimensis was revealed and crucial insights were provided for further research on its utilization as a medicinal resource.

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A New species of Viola (Violaceae): V. ulleungdoensis M. Kim & J. Lee

Lee¹,

Choi²,

Han³

et al. 2012

Korean Journal of Plant Taxonomy

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A new species, Viola ulleungdoensis M. Kim & J. Lee is named and described from Is. Ulleung, Gyeongsangbukdo Province, Korea. Molecular data confirmed that this new taxon was distinguished from other congeneric species. The Viola ulleungdoensis shares several characteristics (acaulescent leaves, beardless lateral petals, glabrous petioles and peduncles, etc.) with its related species V. selkirkii, but is distinct from V. selkirkii which has present adventitious buds, same leaves after flowering, small leaves, and high altitude habitats by having absent adventitious buds, larger leaves after flowering, large leaves, and low altitude habitats.

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Genetic structure and population differentiation of endangered Scrophularia takesimensis (Scrophulariaceae) in Ulleung Island, Korea

Cited by 4 publications

References 0 publications

Origin of the critically endangered endemic species Scrophularia takesimensis (Scrophulariaceae) on Ulleung Island, Korea: implications for conservation

Origin of the critically endangered endemic species Scrophularia takesimensis (Scrophulariaceae) on Ulleung Island, Korea: implications for conservation

An Integrative Study of Scrophularia takesimensis Nakai in an Ovalbumin-Induced Murine Model of Asthma: The Effect on T Helper 2 Cell Activation

A New species of Viola (Violaceae): V. ulleungdoensis M. Kim & J. Lee

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