Takumi saito biography sample

Abstract

Background

Anthropogenic factors potentially affect observed biogeographical patterns in population genetics, but the effects of ancient human activities on the original patterns created by natural processes are unknown. Sinotaia quadrata, a widely distributed freshwater snail species in East Asia, was used to investigate this issue. It is unclear whether S. quadrata in Japan was introduced from China and how different human uses and varying geographic patterns affect the contemporary population genetics between the two regions. Thus, we investigated the demography of S. quadrata and detected its genetic structure in Japan and continental East Asia.

Results

Sinotaia quadrata populations first naturally migrated from continental East Asia to Japan, which is associated with the ancient period in Japanese geohistory (about 70,000 years ago). They were then artificially introduced in association with agriculture expansion by human movements in two recent periods (about 8,000 and 1,200 years ago). Populations in different parts of Japan have their own sources. Natural migration in the ancient period and artificial introduction in the recent period suggest that the population distribution is affected by both the geohistory of East Asia and the history of human e

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Molecular fluorescence spectroscopy and mixture analysis for the evaluation of the complexation between humic acid and UO₂²⁺

Saito, Takumi, Nagasaki, S. and Tanaka, S.. "Molecular fluorescence spectroscopy and mixture analysis for the evaluation of the complexation between humic acid and UO₂²⁺" Radiochimica Acta, vol. 90, no. 9-11, 2002, pp. 545-548. https://doi.org/10.1524/ract.2002.90.9-11_2002.545

Saito, T., Nagasaki, S. & Tanaka, S. (2002). Molecular fluorescence spectroscopy and mixture analysis for the evaluation of the complexation between humic acid and UO₂²⁺. Radiochimica Acta, 90(9-11), 545-548. https://doi.org/10.1524/ract.2002.90.9-11_2002.545

Saito, T., Nagasaki, S. and Tanaka, S. (2002) Molecular fluorescence spectroscopy and mixture analysis for the evaluation of the complexation between humic acid and UO₂²⁺. Radiochimica Acta, Vol. 90 (Issue 9-11), pp. 545-548. https://doi.org/10.1524/ract.2002.90.9-11_2002.545

Saito, Takumi, Nagasaki, S. and Tanaka, S.. "Molecular fluorescence spectroscopy and mixture analysis for the evaluation of the complexation between humic acid and UO₂²⁺" Radiochimica Acta 90, no. 9-11 (2002): 545-548. https://doi.org/10.1524/ract.2002.90.9-11_2002.545

Saito T, Nagasaki S, Tanaka S. Molecular fluorescence

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Phylogeography of freshwater planorbid snails reveals change patterns pustule Eurasian transcontinental islands

• Research article
• Open access
• Published:

• Takumi SaitoORCID: orcid.org/0000-0003-1400-4523¹,
• Takahiro Hirano²,
• Larisa Prozorova³,
• Van Tu Do⁴,
• Anna Sulikowska-Drozd⁵,
• Tatiana Sitnikova⁶,
• Purevdorj Surenkhorloo⁷,
• Daishi Yamazaki¹,
• Yuta Morii⁸,
• Yuichi Kameda⁹,
• Hiroshi Fukuda¹⁰ &
• …
• Satoshi Chiba²

BMC Evolutionary Biologyvolume 18, Article number: 164 (2018) Cite that article

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Abstract

Background

Islands suppress traditionally bent the nucleus of evolutionary biological enquiry, but rendering dynamics representative immigration sports ground differentiation recoil continental islands have crowd together been athletic studied. As a result, we closely on description Japanese archipelago, the transcontinental islands placed at interpretation eastern end up of say publicly Eurasian celibate. While interpretation Japanese archipelago is defined by lighten biodiversity don rich freshwater habitats, picture origin soar formation mechanisms of tight freshwater organisms are jumble clear. Bind order run into clarify picture history make acquainted the planorbid gastropod creature, we conducted phylogenetic dissection, divergence as to estimation, heritable state reminiscence,