Modelling the Geographical Origin of Rice Cultivation in Asia Using the Rice Archaeological Database

PloS One
Fabio SilvaDorian Q Fuller

Abstract

We have compiled an extensive database of archaeological evidence for rice across Asia, including 400 sites from mainland East Asia, Southeast Asia and South Asia. This dataset is used to compare several models for the geographical origins of rice cultivation and infer the most likely region(s) for its origins and subsequent outward diffusion. The approach is based on regression modelling wherein goodness of fit is obtained from power law quantile regressions of the archaeologically inferred age versus a least-cost distance from the putative origin(s). The Fast Marching method is used to estimate the least-cost distances based on simple geographical features. The origin region that best fits the archaeobotanical data is also compared to other hypothetical geographical origins derived from the literature, including from genetics, archaeology and historical linguistics. The model that best fits all available archaeological evidence is a dual origin model with two centres for the cultivation and dispersal of rice focused on the Middle Yangtze and the Lower Yangtze valleys.

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Citations

Jun 2, 2016·Proceedings of the National Academy of Sciences of the United States of America·Alison CrowtherNicole L Boivin
Apr 27, 2017·Molecular Biology and Evolution·Kazuhiro NakayamaSadahiko Iwamoto
Oct 25, 2017·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Robin G AllabyDorian Q Fuller
May 18, 2020·Nature Plants·Rafal M GutakerMichael D Purugganan
Sep 16, 2020·Proceedings of the National Academy of Sciences of the United States of America·Ting MaYongqiang Zong
Jun 1, 2017·Proceedings of the National Academy of Sciences of the United States of America·Xinxin ZuoNaiqin Wu
Jul 10, 2021·Molecular Biology and Evolution·Ornob AlamMichael D Purugganan

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Software Mentioned

geoR
quantreg
WorldClim
MATLAB
optimx
R
AIC
GRASS GIS

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