The effect of genetically based differences in seed size on seedling survival in Arabidopsis thaliana (Brassicaceae)
The effect of genetically based differences in seed size on seedling survival in Arabidopsis thaliana (Brassicaceae)
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种子大小遗传差异对拟南芥（十字花科）幼苗存活的影响
DOI：
10.1002/j.1537-2197.1991.tb15207.x
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发表时间：
1991
影响因子：
3
通讯作者：
J. M. Dow
中科院分区：
文献类型：
--
作者：
P. Krannitz;L. Aarssen;J. M. Dow
通过比较10个拟南芥（Arabidopsis thaliana）自交系，研究了种子大小的遗传差异与幼苗在严重缺素条件下存活的关系。种子较大的基因型的幼苗比种子较小的基因型的幼苗存活时间长。这些结果表明，更大的种子大小产生更大的幼苗耐受营养剥夺的遗传为基础的适应意义。这可能赋予一个潜在的重要的选择性优势时，营养剥夺是一个低的资源供应的结果，在环境中，或由邻居的营养耗尽的结果。
The relationship between genetically different seed sizes and seedling survival under severe nutrient deprivation was determined by comparing ten inbred lines ofArabidopsis thaliana.Seedlings were supplied with only sterile distilled water, and the number of days between germination and death (complete chlorosis) was recorded. Seedlings from genotypes with larger seeds survived longer than seedlings from genotypes with smaller seeds. These results suggest a genetically based adaptive significance of larger seed size resulting from a greater seedling tolerance of nutrient deprivation. This may confer a potentially important selective advantage when nutrient deprivation is the result of a low resource supply in the environment, or the result of nutrient depletion by neighbors.