Papers - UDATSU Tetsuro
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宮崎県内の大学および博物館等と学校との教育連携・支援の現状と問題点について－「総合的な学習の時間」を中心として－
宇田津徹朗,原義彦,新地辰朗
生涯学習研究 9 77 - 97 2004.3
Language：Japanese Publishing type：Research paper (scientific journal)
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Molecular genetic basis of determining subspecies of ancient rice using the shape of phytoliths. Reviewed
Yunfei Zheng, Yanjun Dong, Akira Matsui, Tetsuro Udatsu, Hiroshi Fujiwara
Archaeological Science ( 30 ) 1215 - 1221 2003.10
Language：English Publishing type：Research paper (scientific journal)
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Molecular genetic basis of determining subspecies of ancient rice using the shape of phytoliths
Zheng, Y., Dong, Y., Matsui, A., Udatsu, T., Fujiwara, H.
Journal of Archaeological Science 30 ( 10 ) 1215 - 1221 2003.10
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Journal of Archaeological Science
The presence of phytoliths derived from motor cells of rice (Oryza sativa L.) in archaeological sites could provide strong evidence for cultivation of rice in ancient times. The shape of phytoliths is now considered an effective criterion for determining subspecies of ancient rice. To understand the molecular genetic basis of determining subspecies of ancient rice based on the shape of phytoliths, and to analyze the quantitative trait loci (QTLs) controlling the shape of the silica body, which is the predecessor of phytoliths, we used 68 recombination inbred lines (RIL) from progeny of a combination of a cross between japonica variety, Asominori and indica variety, IR24. Knowledge of the positions of QTLs for the shape of the silica body would contribute to the study on the differentiation and evolution of rice at the molecular level. A total of 16 QTLs associated with the shape of the silica body were detected. Of these, five QTLs for vertical length of the silica body were mapped to chromosome 2, 3, 4, 8 (two QTLs) and accounted for 7.1-10.7% of the total phenotypic variation. Six QTLs for the horizontal length were detected on chromosome 1, 2, 3, 4 (two QTLS), 8 and accounted for 8.1-10.7% of the total phenotypic variation. Five QTLs controlling the lateral length or chromosome 1 (two QTLs), 2, 11 (two QTLs) were detected and explained 7.3-8.6% of the phenotypic variation. The genetic linkage relationships between QTLs for the shape of the silica body and taxonomic traits for classifying subspecies of rice showed feasibility of classifying subspecies of rice based on the shape of phytoliths in archaeological sites. © 2002 Published by Elsevier Ltd.
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Molecular genetic basis of determining subspecies of ancient rice using the shape of phytoliths.
Yunfei Zheng, Yanjun Dong, Akira Matsui, Tetsuro Udatsu, Hiroshi Fujiwara
Archaeological Science ( 30 ) 1215 - 1221 2003.10
Language：Japanese Publishing type：Research paper (scientific journal)
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Molecular genetic basis of determining subspecies of ancient rice using the shape of phytoliths.
Yunfei Zheng, Yanjun Dong, Akira Matsui, Tetsuro Udatsu, Hiroshi Fujiwara
Archaeological Science ( 30 ) 1215 - 1221 2003.10
Language：Japanese Publishing type：Research paper (scientific journal)
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Molecular genetic basis of determining subspecies of ancient rice using the shape of phytoliths.
Yunfei Zheng, Yanjun Dong, Akira Matsui, Tetsuro Udatsu, Hiroshi Fujiwara
Archaeological Science ( 30 ) 1215 - 1221 2003.10
Language：Japanese Publishing type：Research paper (scientific journal)
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太湖地区水稲地方品種xian粳分類方法的比較
湯陵華,孫加祥,宇田津徹朗,佐藤洋一郎
江蘇農業学報 19 ( 3 ) 139 - 144 2003.9
Language：Chinese Publishing type：Research paper (scientific journal)
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太湖地区水稲地方品種xian粳分類方法的比較
湯陵華,孫加祥,宇田津徹朗,佐藤洋一郎
江蘇農業学報 19 ( 3 ) 139 - 144 2003.9
Language：Japanese Publishing type：Research paper (scientific journal)
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中国・草鞋山遺跡における古代水田址調査（第３報）－広域ボーリング調査による水田遺構分布の推定－ Reviewed
宇田津徹朗,湯陵華,王才林,鄭雲飛,佐々木章,柳沢一男,藤原宏志
日本文化財科学会誌 ( 43 ) 51 - 66 2002.2
Language：Japanese Publishing type：Research paper (scientific journal)
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中国・草鞋山遺跡における古代水田址調査（第３報）－広域ボーリング調査による水田遺構分布の推定－
宇田津徹朗,湯陵華,王才林,鄭雲飛,佐々木章,柳沢一男,藤原宏志
日本文化財科学会誌 ( 43 ) 51 - 66 2002.2
Language：Japanese Publishing type：Research paper (scientific journal)
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Zheng Y., Rui G., Matsui A., Udatsu T., Fujiwara H.
Journal of the Zhejiang University - Agriculture and Life Science 27 ( 6 ) 691 - 696 2001.12
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Journal of the Zhejiang University - Agriculture and Life Science
Analysis of silica bodies was carried out for 15 earthenware fragments unearthed from 4 cultural layers of the Luojiajiao site, Zhejiang. As a result, the silica bodies of rice were detected in 5 earthenware fragments from the 2nd, 3rdand 4thcultural layers. Further, analyzing of morphological characteristics showed that the silica bodies were small comparatively, with short vertical, horizontal lengths and big shape coefficients, small discrimination scales based on the shape. The results implied that they were similar to the silica bodies driving from indica more than from japonica. Also, it appeared that the distributions of the silica bodies were of multi-peaks. From the results, it was supposed that rice cultivated in the Luojiajiao site or around it, 7000 years ago were varied populations, in which hsien (indica) was main and king (japonica) was contained too.
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Zheng Y., Rui G., Matsui A., Udatsu T., Fujiwara H.
Journal of the Zhejiang University - Agriculture and Life Science 27 ( 6 ) 691 - 696 2001.12
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Journal of the Zhejiang University - Agriculture and Life Science
Analysis of silica bodies was carried out for 15 earthenware fragments unearthed from 4 cultural layers of the Luojiajiao site, Zhejiang. As a result, the silica bodies of rice were detected in 5 earthenware fragments from the 2nd, 3rdand 4thcultural layers. Further, analyzing of morphological characteristics showed that the silica bodies were small comparatively, with short vertical, horizontal lengths and big shape coefficients, small discrimination scales based on the shape. The results implied that they were similar to the silica bodies driving from indica more than from japonica. Also, it appeared that the distributions of the silica bodies were of multi-peaks. From the results, it was supposed that rice cultivated in the Luojiajiao site or around it, 7000 years ago were varied populations, in which hsien (indica) was main and king (japonica) was contained too.
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Zheng Y, Rui G, Matsui A, Udatsu T, Fujiwara H
Journal of the Zhejiang University - Agriculture and Life Science 27 ( 6 ) 691 - 696 2001.12
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Journal of the Zhejiang University - Agriculture and Life Science
Analysis of silica bodies was carried out for 15 earthenware fragments unearthed from 4 cultural layers of the Luojiajiao site, Zhejiang. As a result, the silica bodies of rice were detected in 5 earthenware fragments from the 2nd, 3rdand 4thcultural layers. Further, analyzing of morphological characteristics showed that the silica bodies were small comparatively, with short vertical, horizontal lengths and big shape coefficients, small discrimination scales based on the shape. The results implied that they were similar to the silica bodies driving from indica more than from japonica. Also, it appeared that the distributions of the silica bodies were of multi-peaks. From the results, it was supposed that rice cultivated in the Luojiajiao site or around it, 7000 years ago were varied populations, in which hsien (indica) was main and king (japonica) was contained too.
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Zheng Y, Rui G, Matsui A, Udatsu T, Fujiwara H
Journal of the Zhejiang University - Agriculture and Life Science 27 ( 6 ) 691 - 696 2001.12
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Journal of the Zhejiang University - Agriculture and Life Science
Analysis of silica bodies was carried out for 15 earthenware fragments unearthed from 4 cultural layers of the Luojiajiao site, Zhejiang. As a result, the silica bodies of rice were detected in 5 earthenware fragments from the 2nd, 3rdand 4thcultural layers. Further, analyzing of morphological characteristics showed that the silica bodies were small comparatively, with short vertical, horizontal lengths and big shape coefficients, small discrimination scales based on the shape. The results implied that they were similar to the silica bodies driving from indica more than from japonica. Also, it appeared that the distributions of the silica bodies were of multi-peaks. From the results, it was supposed that rice cultivated in the Luojiajiao site or around it, 7000 years ago were varied populations, in which hsien (indica) was main and king (japonica) was contained too.
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新石器時代遺跡の土壌および土器のプラント・オパ－ル分析－江蘇省を中心として－ Reviewed
宇田津徹朗,藤原宏志,湯陵華,王才林
日本中国考古学会会報 ( 10 ) 51 - 66 2000.10
Language：Japanese Publishing type：Research paper (scientific journal)
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新石器時代遺跡の土壌および土器のプラント・オパ－ル分析－江蘇省を中心として－
宇田津徹朗,藤原宏志,湯陵華,王才林
日本中国考古学会会報 ( 10 ) 51 - 66 2000.10
Language：Japanese Publishing type：Research paper (scientific journal)
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中国草鞋山遺址古代稲種類型 Reviewed
湯陵華,佐藤洋一郎,宇田津徹朗,孫加祥
江蘇農業学報 15 ( 4 ) 193 - 197 1999.12
Language：Chinese Publishing type：Research paper (scientific journal)
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Wang C., Udatsu T., Fujiwara H.
Japanese Journal of Crop Science 68 ( 1 ) 61 - 62 1999.12
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japanese Journal of Crop Science
The purpose of this study was to discuss the practical usefulness of the discrimination of indica and japonica cultivar groups based on the morphology of silica bodies from motor cells in rice (Oryza saliva L.). The effects of nitrogen levels on the morphology of silica bodies from the flag leaf were investigated. Two indica varieties, "T-153" and "T-160" and a japonica variety, "T-708" were used and cultivated in pot scale (l/5000a). Nitrogen treatment was divided into three levels of 20 gm-2, 10gm-2, and 5 gm-2 and they were applied when the rice plants had 1.5-2.0 in remaining plant age in number of leaves (corresponding to 15 to 20 days before heading). The result showed little effect of nitrogen level on the morphology of silica bodies. No effect of nitrogen level was observed on the discrimination of indica and japonica cultivar groups based on the morphological characters of silica bodies, although the discriminating scores were slightly changed.
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Wang C., Udatsu T., Fujiwara H.
Japanese Journal of Crop Science 68 ( 1 ) 61 - 62 1999.12
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japanese Journal of Crop Science
The purpose of this study was to discuss the practical usefulness of the discrimination of indica and japonica cultivar groups based on the morphology of silica bodies from motor cells in rice (Oryza saliva L.). The effects of nitrogen levels on the morphology of silica bodies from the flag leaf were investigated. Two indica varieties, "T-153" and "T-160" and a japonica variety, "T-708" were used and cultivated in pot scale (l/5000a). Nitrogen treatment was divided into three levels of 20 gm-2, 10gm-2, and 5 gm-2 and they were applied when the rice plants had 1.5-2.0 in remaining plant age in number of leaves (corresponding to 15 to 20 days before heading). The result showed little effect of nitrogen level on the morphology of silica bodies. No effect of nitrogen level was observed on the discrimination of indica and japonica cultivar groups based on the morphological characters of silica bodies, although the discriminating scores were slightly changed.
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中国草鞋山遺址古代稲種類型
湯陵華,佐藤洋一郎,宇田津徹朗,孫加祥
江蘇農業学報 15 ( 4 ) 193 - 197 1999.12
Language：Japanese Publishing type：Research paper (scientific journal)