Polyploids exhibit higher potassium uptake and salinity tolerance in Arabidopsis.

Polyploids exhibit higher potassium uptake and salinity tolerance in Arabidopsis.
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DOI:
10.1126/science.1240561
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发表时间:
2013-08-09
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Salt DE
Salt DE
中科院分区:
其他
文献类型:
--
作者:
Chao DY;Dilkes B;Luo H;Douglas A;Yakubova E;Lahner B;Salt DE

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基因组复制(或多倍化)贯穿植物进化史,被认为驱动了植物的适应性辐射。我们发现,根的细胞型而不是基因型决定了拟南芥叶钾 (K) 浓度的大部分可遗传自然变异。同源多倍体还提供了对盐度的抗性,并且可能代表具有较高倍性的植物钾积累增强的适应性结果。
Genome duplication (or polyploidization) has occurred throughout plant evolutionary history and is thought to have driven the adaptive radiation of plants. We found that the cytotype of the root, and not the genotype, determined the majority of heritable natural variation in leaf potassium (K) concentration in Arabidopsis thaliana. Autopolyploidy also provided resistance to salinity and may represent an adaptive outcome of the enhanced K accumulation of plants with higher ploidy.
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