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Evolution of buffering in a genetic circuit controlling plant stem cell proliferation

Open access
Rodriguez-Leal, Daniel, Xu, Cao, Kwon, Choon-Tak, Soyars, Cara, Demesa-Arevalo, Edgar, Man, Jarrett, Liu, Lei, Lemmon, Zachary H., Jones, Daniel S., Van Eck, Joyce, Jackson, David P., Bartlett, Madelaine E., Nimchuk, Zachary L., Lippman, Zachary B.·2019·Nature Genetics

Abstract

Precise control of plant stem cell proliferation is necessary for the continuous and reproducible development of plant organs1,2. The peptide ligand CLAVATA3 (CLV3) and its receptor protein kinase CLAVATA1 (CLV1) maintain stem cell homeostasis within a deeply conserved negative feedback circuit1,2. In Arabidopsis, CLV1 paralogs also contribute to homeostasis, by compensating for the loss of CLV1 through transcriptional upregulation3. Here, we show that compensation4,5 operates in diverse lineages for both ligands and receptors, but while the core CLV signaling module is conserved, compensation mechanisms have diversified. Transcriptional compensation between ligand paralogs operates in tomato, facilitated by an ancient gene duplication that impacted the domestication of fruit size. In contrast, we found little evidence for transcriptional compensation between ligands in Arabidopsis and maize, and receptor compensation differs between tomato and Arabidopsis. Our findings show that compensation among ligand and receptor paralogs is critical for stem cell homeostasis, but that diverse genetic mechanisms buffer conserved developmental programs. A study of a stem cell receptor–ligand signaling module across tomato, maize and Arabidopsis identifies different genetic mechanisms of compensation that contribute to homeostasis.

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Metadata

Authors
Rodriguez-Leal, D., Xu, C., Kwon, C.-T., Soyars, C., Demesa-Arevalo, E., Man, J., Liu, L., Lemmon, Z. H., Jones, D. S., Van Eck, J., Jackson, D. P., Bartlett, M. E., Nimchuk, Z. L., & Lippman, Z. B.
Venue
Nature Genetics
Published
2019-04-15
Volume
51
Issue
5
Pages
786-792
ISSN
  • 1061-4036 (ISSN-L)
  • 1546-1718
OpenAlex
W2938511997
Cited by
183
References
4
FWCI
14.33
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Evolution of buffering in a genetic circuit controlling plant stem cell proliferation. https://app.cochat.ai/papers/10.1038/s41588-019-0389-8
The paper
Rodriguez-Leal, D., Xu, C., Kwon, C.-T., Soyars, C., Demesa-Arevalo, E., Man, J., Liu, L., Lemmon, Z. H., Jones, D. S., Van Eck, J., Jackson, D. P., Bartlett, M. E., Nimchuk, Z. L., & Lippman, Z. B. (2019). Evolution of buffering in a genetic circuit controlling plant stem cell proliferation. Nature Genetics. https://doi.org/10.1038/s41588-019-0389-8

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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