ArticleJournal of experimental botany2012
The peach (Prunus persica L. Batsch) genome harbours 10 KNOX genes, which are differentially expressed in stem development, and the class 1 KNOPE1 regulates elongation and lignification during primary growth.
Article in Journal of experimental botany, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed, 30 citations in OpenAlex.
- KNOX1 Transcription Factors in Plants with a Special Focus on Horticultural Crops: A Review.Plants (Basel, Switzerland) · 2026Review
- Genetic regulation of stem elongation and thickening in ornamental plants: a review.Horticulture research · 2026Article
- Identification and expression analysis of the KNOX genes during organogenesis and stress responseness in Camellia sinensis (L.) O. Kuntze.Molecular genetics and genomics : MGG · 2023Article
- Genome-Wide Identification of theGenes · 2023Article
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- Genome-wide identification of three-amino-acid-loop-extension gene family and their expression profile under hormone and abiotic stress treatments during stem development ofFrontiers in plant science · 2022Article
- Genome-Wide Identification and Characterization of KNOTTED-Like Homeobox (KNOX) Homologs in Garlic (International journal of molecular sciences · 2021Article
- Identification of Homeobox Genes Associated with Lignification and Their Expression Patterns in Bamboo Shoots.Biomolecules · 2019Article
- Plant Cellular and Molecular Biotechnology: Following Mariotti's Steps.Plants (Basel, Switzerland) · 2019Review
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- The Peach v2.0 release: high-resolution linkage mapping and deep resequencing improve chromosome-scale assembly and contiguity.BMC genomics · 2017Article
- Identification and Overexpression of a Knotted1-Like Transcription Factor in Switchgrass (Panicum virgatum L.) for Lignocellulosic Feedstock Improvement.Frontiers in plant science · 2016Article
- Genome-wide analysis reveals phytohormone action during cassava storage root initiation.Plant molecular biology · 2015Article
- Transcriptional, posttranscriptional, and posttranslational regulation of SHOOT MERISTEMLESS gene expression in Arabidopsis determines gene function in the shoot apex.Plant physiology · 2015Article
- Evolution, diversification, and expression of KNOX proteins in plants.Frontiers in plant science · 2015Article
- Prunus transcription factors: breeding perspectives.Frontiers in plant science · 2015Review
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- KNOX1 genes regulate lignin deposition and composition in monocots and dicots.Frontiers in plant science · 2013Article
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Authors and funding
11 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The KNOTTED-like (KNOX) genes encode homeodomain transcription factors and regulate several processes of plant organ development. The peach (Prunus persica L. Batsch) genome was found to contain 10 KNOX members (KNOPE genes); six of them were experimentally located on the Prunus reference map and the class 1 KNOPE1 was found to link to a quantitative trait locus (QTL) for the internode length in the peach×Ferganensis population. All the KNOPE genes were differentially transcribed in the internodes of growing shoots; the KNOPE1 mRNA abundance decreased progressively from primary (elongation) to secondary growth (radial expansion). During primary growth, the KNOPE1 mRNA was localized in the cortex and in the procambium/metaphloem zones, whereas it was undetected in incipient phloem and xylem fibres. KNOPE1 overexpression in the Arabidopsis bp4 loss-of-function background (35S:KNOPE1/bp genotype) restored the rachis length, suggesting, together with the QTL association, a role for KNOPE1 in peach shoot elongation. Several lignin biosynthesis genes were up-regulated in the bp4 internodes but repressed in the 35S:KNOPE1/bp lines similarly to the wild type. Moreover, the lignin deposition pattern of the 35S:KNOPE1/bp and the wild-type internodes were the same. The KNOPE1 protein was found to recognize in vitro one of the typical KNOX DNA-binding sites that recurred in peach and Arabidopsis lignin genes. KNOPE1 expression was inversely correlated with that of lignin genes and lignin deposition along the peach shoot stems and was down-regulated in lignifying vascular tissues. These data strongly support that KNOPE1 prevents cell lignification by repressing lignin genes during peach stem primary growth.
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