Nucleotide Sequence Variations in the Adh in a Medicinal Species, Dioscorea tokoro (Dioscoreaceae)

Hayakawa, Hiroshi; Barnor, Michael Teye; Minamiya, Yukio; Yokoyama, Jun; Arakawa, Ryo; Fukuda, Tatsuya

doi:10.2525/ecb.50.223

Cited by 1 publication

(1 citation statement)

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“…Primary succession of coastal forests typically occurs very slowly when site conditions are unfavorable to most plants, with only few unique plant species being able to thrive; therefore, selecting and sowing plant species adapted to such environments could encourage primary succession (Ito & Yoshizaki, 2013;Yoshizaki, 2011). Nevertheless, as many species exhibit genetic variations in Japan (Fujii et al, 2002;Fukuda et al, 2011aFukuda et al, , 2011bHayakawa et al, 2012Hayakawa et al, , 2014Iwasaki et al, 2010Iwasaki et al, , 2012Matsumura et al, 2009;Saitou et al, 2007;Sakaguchi et al, 2017;Yamaji et al, 2007;Yokoyama et al, 2003), the use of species from other regions could lead to genetic pollution, in which the original genes are swamped out by hybridization with introgression sources (Fischer & Matthies, 1998;Lynch et al, 1995). This would result in a loss of endemic alleles and the dominance of the introduced genotypes over coastal areas (Hufford & Mazer, 2003;Saltonstall, 2002).…”

Section: Introductionmentioning

confidence: 99%

Seed Germination and Seedling Emergence of Lysimachia mauritiana Lam. (Primulaceae)

Marui¹,

Takizawa²,

Shiba³

et al. 2023

IJB

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Lysimachia mauritiana Lam. (Primulaceae), a biennial maritime plant, is widely distributed in East Asia, the Philippines, Micronesia, Polynesia, and the Indian Ocean. Because of this species’ wide distribution in Japan, we hypothesized that it could germinate and grow even in the bare coastal areas damaged by the tsunami caused by the Great East Japan Earthquake. Thus, we aimed to evaluate the seed germination of L. mauritiana under different sowing depths, temperatures, and salinity soil conditions. The highest germination rate was obtained by sowing L. mauritiana seeds near the soil surface, with germination rate decreasing as the seeding depth increased. Lysimachia mauritiana germinated even at relatively low temperatures. Moreover, we found that L. mauritiana seeds could germinate in less than 1% salt water and in salt-accumulated soil, using soil soaked in 5% or 10% salt water. Our results therefore suggest that L. mauritiana seeds could germinate by sowing on the bare soil surfaces damaged by the tsunami.

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