Idiosyncratic and dose-dependent epistasis drives variation in tomato fruit size.
Idiosyncratic and dose-dependent epistasis drives variation in tomato fruit size.
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DOI:
10.1126/science.adi5222
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发表时间:
2023-10-20
期刊:
影响因子:
--
通讯作者:
Lippman ZB
中科院分区:
文献类型:
--
作者:
Aguirre L;Hendelman A;Hutton SF;McCandlish DM;Lippman ZB
Epistasis between genes is traditionally studied using mutations that eliminate protein activity, but most natural genetic variation is in cis-regulatory DNA and influences gene expression and function quantitatively. Here, we use natural and engineered cis-regulatory alleles in a plant stem cell circuit to systematically evaluate epistatic relationships controlling tomato fruit size. Combining a promoter allelic series with two other loci, we collected over 30,000 phenotypic data points from 46 genotypes to quantify how allele strength transforms epistasis. We revealed a saturating dose-dependent relationship, but also allele-specific idiosyncratic interactions, including between alleles driving a step change in fruit size during domestication. Our approach and findings expose an underexplored dimension of epistasis, where cis-regulatory allelic diversity within gene regulatory networks elicits non-linear, unpredictable interactions that shape phenotypes. Epistasis analysis across a cis-regulatory allelic series reveals unpredictable, non-linear interactions that shape trait variation.
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影响因子:
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作者:
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通讯作者:
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DOI:
10.1016/j.xgen.2023.100260
发表时间:
2023-04-12
期刊:
CELL GENOMICS
影响因子:
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DOI:
10.1073/pnas.2204206119
发表时间:
2022-09-13
影响因子:
11.1
作者:
通讯作者:
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影响因子:
18
作者:
Kwon, Choon-Tak;Tang, Lingli;Lippman, Zachary B.
通讯作者:
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