文献类型： 外文期刊

作者： Huan, Xiujia ¹ ; Lu, Houyuan ¹ ; Wang, Can ¹ ; Tang, Xiangan ⁴ ; Zuo, Xinxin ¹ ; Ge, Yong ¹ ; He, Keyang ¹ ;

作者机构： 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China

2.Univ Chinese Acad Sci, Beijing, Peoples R China

3.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China

4.Jiangxi Acad Agr Sci, Soil & Fertilizer & Environm & Resources Res Inst, Nanchang, Jiangxi, Peoples R China

期刊名称：PLOS ONE （ 影响因子：3.24； 五年影响因子：3.788 ）

ISSN： 1932-6203

年卷期： 2015 年 10 卷 10 期

页码：

收录情况： SCI

摘要： Bulliform phytoliths play an important role in researching rice origins as they can be used to distinguish between wild and domesticated rice. Rice bulliform phytoliths are characterized by numerous small shallow fish-scale decorations on the lateral side. Previous studies have shown that domesticated rice has a larger number of these decorations than wild rice and that the number of decorations >= 9 is a useful feature for identifying domesticated rice. However, this standard was established based on limited samples of modern rice plants. In this study, we analyzed soil samples from both wild and domesticated rice paddies. Results showed that, in wild rice soil samples, the proportion of bulliform phytoliths with >= 9 decorations was 17.46% +/- 8.29%, while in domesticated rice soil samples, the corresponding proportion was 63.70% +/- 9.22%. This suggests that the proportion of phytoliths with >= 9 decorations can be adopted as a criterion for discriminating between wild and domesticated rice in prehistoric soil. This indicator will be of significance in improving the application of fish-scale decorations to research into rice origins and the rice domestication process.