The role of changes in environmental quality in multitrait plastic responses to environmental and social change in the model microalga Chlamydomonas reinhardtii.
The role of changes in environmental quality in multitrait plastic responses to environmental and social change in the model microalga Chlamydomonas reinhardtii.
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在模式微藻衣藻中，环境质量的变化在多性状塑料对环境和社会变化的反应中的作用。
DOI：
10.1002/ece3.7179
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发表时间：
2021-03
影响因子：
2.6
通讯作者：
Collins S
中科院分区：
文献类型：
--
作者：
Melero-Jiménez IJ;Flores-Moya A;Collins S
种内变异在物种对环境变化的反应中起着关键作用，然而，人们对环境质量（环境支持的种群增长率）的变化对种内性状变异的作用知之甚少。在这里，我们假设，种内性状变异将更高的改善环境比退化的。我们首先测量的范围内的环境质量的三个菌株和两个进化历史的莱茵衣藻在实验室条件下的多性状表型。然后，我们探讨了环境质量和性状变异如何影响谱系频率的可预测性时，谱系对生长在间接共培养。我们的研究结果表明，环境质量有可能影响种内变异的表达性状值的变化，并在快速增长的人口的基因型组成。我们发现，在退化或相同质量的环境中，表型变异性较低，而在改善的条件下，表型变异性较高。这种变化可能会影响人口组成，因为单一文化的增长率是一个不太可靠的预测谱系频率在改善的环境。我们的研究强调，了解种群是否经历环境变化，相对于其近期历史的质量增加或减少，会影响塑料反应期间性状变异的变化，包括对同种物种存在的生长反应。这指出了整体环境质量的变化在驱动密切相关的种群内的表型变异中的基本作用，并对微进化产生影响。我们探讨了环境质量的影响，其中一系列的压力和改善的环境被认为是多性状塑料反应模型microplasticchlamydreinhardtii。我们的研究强调，了解种群是否经历环境变化，相对于其近期历史的质量增加或减少，会影响塑料反应期间性状变异的变化，包括对同种物种存在的生长反应。
Intraspecific variation plays a key role in species' responses to environmental change; however, little is known about the role of changes in environmental quality (the population growth rate an environment supports) on intraspecific trait variation. Here, we hypothesize that intraspecific trait variation will be higher in ameliorated environments than in degraded ones. We first measure the range of multitrait phenotypes over a range of environmental qualities for three strains and two evolutionary histories of Chlamydomonas reinhardtii in laboratory conditions. We then explore how environmental quality and trait variation affect the predictability of lineage frequencies when lineage pairs are grown in indirect co‐culture. Our results show that environmental quality has the potential to affect intraspecific variability both in terms of the variation in expressed trait values, and in terms of the genotype composition of rapidly growing populations. We found low phenotypic variability in degraded or same‐quality environments and high phenotypic variability in ameliorated conditions. This variation can affect population composition, as monoculture growth rate is a less reliable predictor of lineage frequencies in ameliorated environments. Our study highlights that understanding whether populations experience environmental change as an increase or a decrease in quality relative to their recent history affects the changes in trait variation during plastic responses, including growth responses to the presence of conspecifics. This points toward a fundamental role for changes in overall environmental quality in driving phenotypic variation within closely related populations, with implications for microevolution. We explore the effect of environmental quality where a range of both stressful and ameliorated environments are considered, on multitrait plastic responses in the model microalga Chlamydomonas reinhardtii. Our study highlights that understanding whether populations experience environmental change as an increase or a decrease in quality relative to their recent history affects the changes in trait variation during plastic responses, including growth responses to the presence of conspecifics.
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影响因子：
2.6
作者：
Melero-Jiménez IJ;Flores-Moya A;Collins S
通讯作者：
Collins S
影响因子：
30.7
作者：
Brennan, Georgina;Collins, Sinead
通讯作者：
Collins, Sinead
DOI：
10.1038/nrmicro2259
发表时间：
2010-01
期刊：
Nature reviews. Microbiology
影响因子：
--
作者：
通讯作者：
--
DOI：
10.1098/rspb.2010.1173
发表时间：
2011-01-22
期刊：
Proceedings. Biological sciences
影响因子：
--
作者：
Collins S
通讯作者：
Collins S
影响因子：
16.8
作者：
Coustau, C;Chevillon, C;ffrench-Constant, R
通讯作者：
ffrench-Constant, R