Calcium and salinity as selective factors in plate morph evolution of the three‐spined stickleback (Gasterosteus aculeatus)
Calcium and salinity as selective factors in plate morph evolution of the three‐spined stickleback (Gasterosteus aculeatus)
复制标题
钙和盐度作为三刺刺鱼（Gasterosteus aculeatus）板块形态进化的选择因素
DOI：
--
复制
发表时间：
2012
影响因子：
2.1
通讯作者：
Carl Smith
中科院分区：
文献类型：
--
作者：
R. Spence;R. Wootton;M. Przybylski;G. Zięba;K. Macdonald;Carl Smith
确定自然选择背后的因果因素仍然是进化生物学的一个关键挑战。虽然三棘鱼（Gasterosteus aculeatus）的板状形态进化的遗传基础得到了很好的描述，但形成不同形态基础的环境变量还不清楚。我们测量了溶解钙和盐度对来自苏格兰和波兰的不同板形棘鱼生长的影响。有一个显着的相互作用，钙与板形态的鱼从这两个地区，与完整的形态刺鱼生长缓慢，在低钙浓度和低形态刺鱼表现出不同的反应，钙浓度。苏格兰溯河产卵种群表现出对高盐度的局部适应的证据，这与板块形态无关。波兰和苏格兰的人口分歧，在他们的反应盐度，这表明渗透调节的差异。这些结果暗示了钙在棘鱼的板状形态进化中的选择作用，可能是骨骼生长的限制因素。
Identifying the causal factors underlying natural selection remains a key challenge in evolutionary biology. Although the genetic basis for the plate morph evolution of three‐spined stickleback (Gasterosteus aculeatus) is well described, the environmental variables that form the basis for different morphs are not understood. We measured the effects of dissolved calcium and salinity on the growth of sticklebacks with different plate morphs from Scotland and Poland. There was a significant interaction of calcium with plate morph for fish from both regions, with complete morph sticklebacks growing more slowly at low calcium concentrations and low morph sticklebacks showing divergent responses to calcium concentration. A Scottish anadromous population showed evidence of local adaptation to high salinity, which was independent of plate morph. Polish and Scottish populations diverged in their response to salinity, suggesting a difference in osmotic regulation. The results implicate a role for calcium in selecting for plate morph evolution in sticklebacks, possibly as a limiting element in skeletal growth.
DOI：
10.1073/pnas.0308479101
发表时间：
2004-03-09
影响因子：
11.1
作者：
Wexler, NS
通讯作者：
Wexler, NS