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3篇 您的检索式:作者名="Yoshihiro Setoguchi"
    题名 作者 年代 出处 被引量
1Infrared studies on hydrogen bond interaction in a homologues series of triphenylene discotic liquid crystals having carboxytic acids at the peripheral ehains显示文摘Yoshihiro Setoguchi Hirosato Monobe Wen Wan 2003Thin Solid Films2003,438,439:1
2Development and characterization of 43 microsatellite markers for the critically endangered primrose Primula reinii using MiSeq sequencing显示文摘Primula reinii(Primulaceae), a perennial herb belonging to the Primula section Reinii, occurs on wet,shaded rocky cliffs in the mountains of Japan. This threatened species comprises four varieties; these plants are very localized and rare in the wild. In this study, 43 microsatellite markers were developed using MiSeq sequencing to facilitate conservation genetics of these critically endangered primroses. We developed novel microsatellite markers for three varieties of P. reinii, and tested its polymorphism and genetic diversity using natural populations. These novel markers displayed relatively high polymorphism; the number of alleles and expected heterozygosities ranged from 2 to 6(mean = 3.2) and 0.13 to 0.82(mean = 0.45), respectively. All loci were in Hardye Weinberg equilibrium. These microsatellite markers will be powerful tools to assess P. reinii genetic diversity and develop effective conservation and management strategies.Masaya Yamamoto Yoshihiro Handa Hiroki Aihara Hiroaki Setoguchi 2018Plant Diversity2018,40,1:0
3Stable persistence of relict populations involved evolutionary shifts of reproductive characters in the genus Tanakaea (Saxifragaceae)显示文摘Tertiary relicts often show evolutionary stasis in morphology and ecology and have been hypothesized to retain stable population sizes in refugia. However, recent studies have reported that some relicts evolutionarily shifted their physiology, ecology, and morphology and experienced various patterns of demography. To understand the historical survival of relict plants, a multidimensional study investigating the evolution of ecological and morphological traits as well as population demographic history is needed. The genus Tanakaea (Saxifragaceae) comprises two species in China and Japan. These species share most vegetative characteristics and are sometimes treated as a single species. The distribution pattern is relictual, as the populations are confined to small areas in mesic warm temperate forests less influenced by Quaternary glacial climates. Focusing on the relictual plant group, this study tested the hypotheses of evolutionary stasis and population stability in long-term refugia. Genetic analyses using plastome sequences and genome-wide single-nucleotide polymorphisms revealed divergence of the two species approximately 6.8 million years ago and strong genetic differentiation of the regional populations. Demographic analysis revealed that almost all populations retained stable population sizes during glacial–interglacial climate changes, supporting the traditional view. However, morphological assessments revealed a simultaneous shift in breeding systems (from hermaphrodite to dioecy/non-clonal to clonal reproduction) in Japanese species and intraspecific differentiation of leaf traits. Therefore, the relict species do not show evolutionary stasis in every aspect. Changes in reproductive characteristics may have contributed to their long-term in situ survival.Daiki Takahashi Yuji Isagi Pan Li Ying-Xiong Qiu Hiroaki Setoguchi Yoshihisa Suyama Ayumi Matsuo Yoshihiro Tsunamoto Shota Sakaguchi 2022Journal of Systematics and Evolution2022,60,6:0
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