Selection on structural allelic variation biases plasticity estimates
Selection on structural allelic variation biases plasticity estimates
复制标题
结构等位基因变异的选择会影响可塑性估计
DOI:
10.1111/evo.13723
复制
发表时间:
2019
期刊:
影响因子:
3.3
通讯作者:
Althoff, David M.
中科院分区:
文献类型:
--
作者:
Santos, Mauro;Matos, Margarida;Wang, Sheng Pei;Althoff, David M.
Wang and Althoff (2019) explored the capacity ofDrosophila melanogasterto exhibit adaptive plasticity in a novel environment. In a full-sib, half-sib design, they scored the activity of the enzyme alcohol dehydrogenase (ADH) and plastic responses, measured as changes in ADH activity across ethanol concentrations in the range of 0–10% (natural variation) and 16% (the novel environment). ADH activity increased with alcohol concentration, and there was a positive association between larval viability and ADH activity in the novel environment. They also reported that families exhibiting greater plasticity had higher larval survival in the novel environment, concluding that ADH plasticity is adaptive. However, the four authors now concur that, since the study estimated plasticity from phenotypic differences across environments using full-sib families, it is not possible to disentangle the contributions of allele frequency changes at theAdhlocus from regulatory control at loci known to influence ADH activity. Selective changes in allele frequencies may thus conflate estimates of plasticity; any type of “plasticity” (adaptive, neutral, or maladaptive) could be inferred depending on allele frequencies. The problem of scoring sib-groups after selection should be considered in any plasticity study that cannot use replicated genotypes. Researchers should monitor changes in allele frequencies as one mechanism to deal with this issue.
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DOI:
10.1086/285543
发表时间:
1993
期刊:
The American Naturalist
影响因子:
--
作者:
C. Schlichting;M. Pigliucci
通讯作者:
M. Pigliucci
DOI:
--
发表时间:
2018
期刊:
Evolution; international journal of organic evolution
影响因子:
--
作者:
S. Scheiner
通讯作者:
S. Scheiner
影响因子:
3.8
作者:
J. Kerver;W. van Delden
通讯作者:
W. van Delden
影响因子:
3.3
作者:
V. Corbin;T. Maniatis
通讯作者:
T. Maniatis
影响因子:
3.3
作者:
J. McDonald;S. M. Anderson;M. Santos
通讯作者:
M. Santos