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Single-cell RNA sequencing reveals intrinsic and extrinsic regulatory heterogeneity in yeast responding to stress
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نویسنده
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gasch a.p. ,yu f.b. ,hose j. ,escalante l.e. ,place m. ,bacher r. ,kanbar j. ,ciobanu d. ,sandor l. ,grigoriev i.v. ,kendziorski c. ,quake s.r. ,mcclean m.n.
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منبع
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plos biology - 2017 - دوره : 15 - شماره : 12
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چکیده
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From bacteria to humans,individual cells within isogenic populations can show significant variation in stress tolerance,but the nature of this heterogeneity is not clear. to investigate this,we used single-cell rna sequencing to quantify transcript heterogeneity in single saccharomyces cerevisiae cells treated with and without salt stress to explore population variation and identify cellular covariates that influence the stress-responsive transcriptome. leveraging the extensive knowledge of yeast transcriptional regulation,we uncovered significant regulatory variation in individual yeast cells,both before and after stress. we also discovered that a subset of cells appears to decouple expression of ribosomal protein genes from the environmental stress response in a manner partly correlated with the cell cycle but unrelated to the yeast ultradian metabolic cycle. live-cell imaging of cells expressing pairs of fluorescent regulators,including the transcription factor msn2 with dot6,sfp1,or map kinase hog1,revealed both coordinated and decoupled nucleocytoplasmic shuttling. together with transcriptomic analysis,our results suggest that cells maintain a cellular filter against decoupled bursts of transcription factor activation but mount a stress response upon coordinated regulation,even in a subset of unstressed cells. © 2017 public library of science. all rights reserved.
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آدرس
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laboratory of genetics,university of wisconsin–madison,madison,wi,united states,great lakes bioenergy research center,university of wisconsin–madison,madison,wi, United States, department of bioengineering,stanford university,stanford,ca, United States, laboratory of genetics,university of wisconsin–madison,madison,wi, United States, laboratory of genetics,university of wisconsin–madison,madison,wi, United States, great lakes bioenergy research center,university of wisconsin–madison,madison,wi, United States, department of biostatistics and medical informatics,university of wisconsin–madison,madison,wi, United States, department of bioengineering,stanford university,stanford,ca,united states,department of medicine,university of california san diego,la jolla,ca, United States, department of energy joint genome institute,walnut creek,ca, United States, department of energy joint genome institute,walnut creek,ca, United States, department of energy joint genome institute,walnut creek,ca, United States, department of biostatistics and medical informatics,university of wisconsin–madison,madison,wi, United States, department of bioengineering,stanford university,stanford,ca,united states,chan zuckerberg biohub,san francisco,ca, United States, department of biomedical engineering,university of wisconsin–madison,madison,wi, United States
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Authors
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