A review of quantitative genetic components of fitness in salmonids: implications for adaptation to future change.
A review of quantitative genetic components of fitness in salmonids: implications for adaptation to future change.
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DOI：
10.1111/j.1752-4571.2008.00025.x
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发表时间：
2008-05
影响因子：
4.1
通讯作者：
Seamons TR
中科院分区：
文献类型：
--
作者：
Carlson SM;Seamons TR
由于人类活动和全球气候变化，鲑科鱼类通常会受到强大的，新的选择压力，往往导致种群灭绝。因此，有相当大的兴趣在预测的长期演化轨迹的现存种群。对适应性特征的遗传结构的了解是做出这些预测不可或缺的。我们回顾了已发表的同行评议文献，以估计鲑鱼适应性性状的遗传力和遗传相关性，并考虑到两个主要目标：总结已发表的数据和检验分类变量之间的差异（例如，物种、生活史类型、实验条件）。缺乏对变量的平衡覆盖，对野生种群和行为特征的估计几乎不存在。遗传力估计值的分布偏向于低值，遗传相关性的分布偏向于大的正值，这表明存在显著的性状进化潜力。此外，实验条件有一个直接影响h2估计，和其他变量有更复杂的影响h2和rG估计，这表明现有的估计可能不足以用于模型预测野生种群的进化变化。考虑到这一点和其他固有的复杂因素，准确预测鲑鱼的进化轨迹将是一项艰巨的任务。
Salmonine fishes are commonly subjected to strong, novel selective pressures due to anthropogenic activities and global climate change, often resulting in population extinction. Consequently, there is considerable interest in predicting the long-term evolutionary trajectories of extant populations. Knowledge of the genetic architecture of fitness traits is integral to making these predictions. We reviewed the published, peer-reviewed literature for estimates of heritability and genetic correlation for fitness traits in salmonine fishes with two broad goals in mind: summarization of published data and testing for differences among categorical variables (e.g., species, life history type, experimental conditions). Balanced coverage of variables was lacking and estimates for wild populations and behavioral traits were nearly absent. Distributions of heritability estimates were skewed toward low values and distributions of genetic correlations toward large, positive values, suggesting that significant potential for evolution of traits exists. Furthermore, experimental conditions had a direct effect on h2 estimates, and other variables had more complex effects on h2 and rG estimates, suggesting that available estimates may be insufficient for use in models to predict evolutionary change in wild populations. Given this and other inherent complicating factors, making accurate predictions of the evolutionary trajectories of salmonine fishes will be a difficult task.
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影响因子：
3.1
作者：
Danzmann, RG;Cairney, M;Woram, RA
通讯作者：
Woram, RA
影响因子：
56.9
作者：
Grant, Peter R.;Grant, B. Rosemary
通讯作者：
Grant, B. Rosemary
影响因子：
6.3
作者：
Gustafson, Richard G.;Waples, Robin S.;Hard, Jeffrey J.
通讯作者：
Hard, Jeffrey J.
影响因子：
3.3
作者：
GRANT, PR;GRANT, BR
通讯作者：
GRANT, BR
影响因子：
2.4
作者：
Hutchings, JA;Jones, MEB
通讯作者：
Jones, MEB