Arsenic influence on genetic variation in grain trace-element nutrient content in Bengal delta grown rice.
Arsenic influence on genetic variation in grain trace-element nutrient content in Bengal delta grown rice.
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DOI：
10.1021/es101487x
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发表时间：
2010-09
影响因子：
11.4
通讯作者：
G. Norton;T. Dasgupta;M. Rafiqul Islam;S. Islam;C. Deacon;F. Zhao;J. Stroud;Steve P. McGrath;J. Feldmann;Adam H. Price;A. Meharg
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文献类型：
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作者：
G. Norton;T. Dasgupta;M. Rafiqul Islam;S. Islam;C. Deacon;F. Zhao;J. Stroud;Steve P. McGrath;J. Feldmann;Adam H. Price;A. Meharg
It has previously been shown that across different arsenic (As) soil environments, a decrease in grain selenium (Se), zinc (Zn), and nickel (Ni) concentrations is associated with an increase in grain As. In this study we aim to determine if there is a genetic element for this observation or if it is driven by the soil As environment. To determine the genetic and environmental effect on grain element composition, multielement analysis using ICP-MS was performed on rice grain from a range of rice cultivars grown in 4 different field sites (2 in Bangladesh and 2 in West Bengal). At all four sites a negative correlation was observed between grain As and grain Ni, while at three of the four sites a negative correlation was observed between grain As and grain Se and grain copper (Cu). For manganese, Ni, Cu, and Se there was also a significant genetic interaction with grain arsenic indicating some cultivars are more strongly affected by arsenic than others.
