A reconsideration of relationships among Japanese Trillium species based on karyology and AFLP data

Kubota, Susumu; Kameyama, Yuichi; Ohara, Masashi

doi:10.1007/s00606-006-0447-4

Cited by 12 publications

(6 citation statements)

References 27 publications

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“…It also does not require pre liminary knowledge about the DNA sequence. These dominant markers, which are evenly distributed all over the nuclear genome, were formerly used success fully in population genetic studies of Liliaceae and related families [10][11][12][13]. Population genetic studies of wild tulips using AFLP analysis have been conducted for the first time.…”

Section: Introductionmentioning

confidence: 99%

Morphologic and AFLP analysis of relationships between tulip species Tulipa biebersteiniana (Liliaceae)

2013

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Abstract-In populations of four species of tulips (Tulipa biebersteiniana, T. patens, T. scytica and T. riparia)from the Volgograd, Kurgansk, Orenburg, and Chelyabinsk regions and the Republic of Bashkortostan, genetic diversity was studied by means of morphological and AFLP analysis. A morphological analysis of seven quantitative and two qualitative criteria was carried out. Three selective EcoRI/MseI primer pairs allowed one to genotype 81 individuals from 13 tulip populations with 87 loci. The low level of variability by AFLP loci were revealed in all species, including T. biebersteiniana (P = 20.41%, UH e = 0.075), T. patens (26.97%, 0.082), T. scytica (27.53%, 0.086), and T. riparia (27.72%, 0.096). According to the AMOVA results, the variability proportion that characterizes the differences between the four Tulip species was lower (F CT = 0.235) than between populations within species (F ST = 0.439). Tulipa patens is well differentiated by means of Nei's distances, coordination, and analysis in the STRUCTURE program. An analysis in the STRUCTURE revealed four genetic groups of tulips that are not completely in accordance with the analyzed species. This acknowledges the presence of complicated genetic process in the tulip population.

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Section: Introductionmentioning

confidence: 99%

Morphologic and AFLP analysis of relationships between tulip species Tulipa biebersteiniana (Liliaceae)

2013

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“…Trillium govanianum Wall. ex Royle (commonly called Himalayan Trillium), an endemic plant to the Himalayas (Kubota et al 2006), has traditionally been used for many household treatments by local people, such as its rhizome is used as an analgesic and as anti‐inflammatory remedies (Fu and Jin 1992, Rahman et al 2016, Dhyani et al 2020). It is also useful in anti‐cancerous and anti‐ageing medicines (Chaudhary et al 2015, Khan et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Trillium govanianum (Himalayan Trillium): production, distribution, use and conservation in Nepal

Thapa¹,

Kunwar

Adhikari

et al. 2021

Nordic Journal of Botany

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Trillium govanianum is known to be used for primary health care and household economy, however detailed information on its ecology and importance for local economy has remained unknown. In this study, we investigated T. govanianum population, production and distribution range, as well as its use, trade and vulnerability in Nepal. We show that the current practice of T. govanianum rhizome marketing has resulted in unsustainable harvesting, putting in extreme pressure on its habitats and populations. Harvesting methods such as premature harvesting and mass collections, without knowing actual population size and distribution, may have serious negative effects on reproduction, growth and survival of the species. To gather data and information, we sampled 80 quadrats and 320 (1 × 1 m) nested plots along with 96 interviews. Information on species occurrence points was gathered from various sources including direct field sampling and predicted potential suitable habitat using a maximum entropy model (MaxEnt). Rapid vulnerability assessment (RVA) was used to assess the conservation status of the species. Our results showed that T. govanianum occurs in 26 districts of Nepal and can be expected in 10 more mountainous districts along the elevation range between 2400 m and 4050 m. Among the environmental factors, elevation, precipitation and temperature were found to be the most influential for the species' distribution. Market‐led unsustainable collections were prevalent and T. govanianum collections were traded as an adulterant to Paris polyphylla, a highly traded medicinal plant. We found that T. govanianum is a vulnerable species with threat category I. Therefore, conservation efforts are urgently needed, including protection of its key sites and habitats along with sustainable use so as to save its existence.

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Section: Introductionmentioning

confidence: 99%

“…Moreover, all hybrid sterile species and hybrid derivatives are thought to be caused by asymmetrical hybridization (Ihara et al . 1996; Kubota et al . 2006a).…”

Section: Introductionmentioning

confidence: 99%

“…Based on karyological and amplified fragment length polymorphism (AFLP) data on Japanese Trillium species, it has been demonstrated that among the nine species distributed in Hokkaido the eight species consist of three progenitor species, three sterile hybrids and two hybrid derivatives and that they form polyploid series, 2x, 3x, 4x and 6x (Haga 1937(Haga , 1951(Haga , 1952(Haga , 1956Haga & Kurabayashi 1953;Kurabayashi 1958;Haga et al 1974;Kubota et al 2006a). Moreover, all hybrid sterile species and hybrid derivatives are thought to be caused by asymmetrical hybridization (Ihara et al 1996;Kubota et al 2006a). Asymmetrical sterile hybrid formation is observed in many populations in Hokkaido, Japan (Ihara et al 1996) and speciation of two hybrid derivatives is thought to have occurred multiple times (Haga et al 1974;Uchino 1980).…”

Section: Introductionmentioning

confidence: 99%

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Mechanisms of reproductive isolation of interspecific hybridization between Trillium camschatcense and T. tschonoskii (Melanthiaceae)

Ishizaki

Abe

Ohara

2012

Plant Species Biology

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Reproductive isolation plays a significant role in the prevention of gene flow between different plant species. Isolation factors can vary, acting either pre‐ or postzygotically. Trillium camschatcense and T. tschonoskii are herbaceous perennials which frequently grow together in Hokkaido, Japan. Natural hybrid formation, T. × hagae, between these species is common, and occurs asymmetrically with T. camschatcense as the maternal parent and T. tschonoskii as the paternal. Here, we examined the efficiency of each reproductive isolation factor to clarify which factor was responsible for the frequency and asymmetry of the hybridization. We found that prezygotic barriers, self fertilization and conspecific pollen precedence, are major isolation factors in both parental species, and that T. tschonoskii as a maternal parent has more effective prezygotic barriers than T. camschatcense. In addition, hybrids with T. tschonoskii as the maternal parent were not observed to reach the flowering stage. We concluded that prezygotic isolation factors in the both species act as main barriers to prevent natural hybridization, and that asymmetry of the isolating barriers between these species would promote T. camschatcense as the maternal parent of the hybrids.

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A reconsideration of relationships among Japanese Trillium species based on karyology and AFLP data

Cited by 12 publications

References 27 publications

Morphologic and AFLP analysis of relationships between tulip species Tulipa biebersteiniana (Liliaceae)

Morphologic and AFLP analysis of relationships between tulip species Tulipa biebersteiniana (Liliaceae)

Trillium govanianum (Himalayan Trillium): production, distribution, use and conservation in Nepal

Mechanisms of reproductive isolation of interspecific hybridization between Trillium camschatcense and T. tschonoskii (Melanthiaceae)

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