期刊
ANNUAL REVIEW OF ECOLOGY, EVOLUTION, AND SYSTEMATICS, VOL 44
卷 44, 期 -, 页码 5-+出版社
ANNUAL REVIEWS
DOI: 10.1146/annurev-ecolsys-110512-135806
关键词
antagonistic pleiotropy; conditional neutrality; differential sensitivity; G x E; QTL; plasticity
资金
- Div Of Biological Infrastructure [1103668] Funding Source: National Science Foundation
There is considerable interest in the occurrence and molecular mechanisms of phenotypic plasticity and genotype-by-environment interactions (G x E) in plant populations. The emergence of genomic tools, including quantitative trait locus (QTL) mapping and transcriptome studies, provides opportunities to identify G x E patterns and mechanisms across a diversity of phenotypes, species, and environments. We review progress in evaluating the presence and characterizing the mechanisms of G x E using genomic studies of abiotic responses in plants. Our review reveals that G x E is common, often caused by changes in the magnitude of genetic effects in response to the environment, and associated with diverse genetic factors and molecular variants. We illustrate this diversity with an examination of transcriptome studies and discussion of cloned genes underlying G x E. We discuss the caveats associated with existing studies and outline future directions for better understanding G x E and its impact on local adaptation and plant improvement.
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