Analysis of Epistasis in Natural Traits Using Model Organisms.
Analysis of Epistasis in Natural Traits Using Model Organisms.
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DOI:
10.1016/j.tig.2018.08.002
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发表时间:
2018-11
期刊:
影响因子:
--
通讯作者:
Paaby AB
中科院分区:
文献类型:
--
作者:
Campbell RF;McGrath PT;Paaby AB
The ability to detect and understand epistasis in natural populations is important for understanding how biological traits are influenced by genetic variation. However, identification and characterization of epistasis in natural populations remains difficult due to statistical issues that arise as a result of multiple comparisons and the fact that most genetic variants segregate at low allele frequencies. In this review, we discuss how model organisms may be used to manipulate genotypic combinations to power the detection of epistasis as well as test interactions between specific genes. Findings from a number of species indicate that statistical epistasis is pervasive between natural genetic variants. However, the properties of experimental systems that enable analysis of epistasis also constrain extrapolation of these results back into natural populations.
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