ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2024
GHCU, a Molecular Chaperone, Regulates Leaf Curling by Modulating the Distribution of KNGH1 in Cotton.
Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 8 citations in OpenAlex.
- Phenotyping elucidates the association between traits and bioactive components in Notopterygium incisum.BMC plant biology · 2026Article
- Genetic Mapping and Functional Characterisation of GhCUP Regulating Leaf Curling in Cotton.Plant biotechnology journal · 2026Article
- The GhWL1-GhH1-GhGA2OX1 Transcriptional Module Regulates Cotton Leaf Morphology.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- A single-nucleotide mutation of G301A inFrontiers in plant science · 2025Article
- Harnessing Single-Cell and Spatial Transcriptomics for Crop Improvement.Plants (Basel, Switzerland) · 2024Review
- GHCU, a Molecular Chaperone, Regulates Leaf Curling by Modulating the Distribution of KNGH1 in Cotton.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
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Authors and funding
13 authors at 2 institutions in 1 country.
Funding
Abstract
Leaf shape is considered to be one of the most significant agronomic traits in crop breeding. However, the molecular basis underlying leaf morphogenesis in cotton is still largely unknown. In this study, through genetic mapping and molecular investigation using a natural cotton mutant cu with leaves curling upward, the causal gene GHCU is successfully identified as the key regulator of leaf flattening. Knockout of GHCU or its homolog in cotton and tobacco using CRISPR results in abnormal leaf shape. It is further discovered that GHCU facilitates the transport of the HD protein KNOTTED1-like (KNGH1) from the adaxial to the abaxial domain. Loss of GHCU function restricts KNGH1 to the adaxial epidermal region, leading to lower auxin response levels in the adaxial boundary compared to the abaxial. This spatial asymmetry in auxin distribution produces the upward-curled leaf phenotype of the cu mutant. By analysis of single-cell RNA sequencing and spatiotemporal transcriptomic data, auxin biosynthesis genes are confirmed to be expressed asymmetrically in the adaxial-abaxial epidermal cells. Overall, these findings suggest that GHCU plays a crucial role in the regulation of leaf flattening through facilitating cell-to-cell trafficking of KNGH1 and hence influencing the auxin response level.
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Registered trials
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