ArticlePlant physiology2009
Distal expression of knotted1 in maize leaves leads to reestablishment of proximal/distal patterning and leaf dissection.
Article in Plant physiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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Who cites it
25 citing papers in PubMed.
- Unlocking grass leaf development: foundations for tunable cereal design.The New phytologist · 2025Review
- Coordinated control for the auricle asymmetric development by ZmIDD14 and ZmIDD15 fine-tune the high-density planting adaption in maize.Plant biotechnology journal · 2024Article
- Dissected Leaf 1 encodes an MYB transcription factor that controls leaf morphology in potato.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023Article
- A BLADE-ON-PETIOLE orthologue regulates corolla differentiation in the proximal region in Torenia fournieri.Nature communications · 2023Article
- Genome-Wide Identification of Wheat KNOX Gene Family and Functional Characterization ofInternational journal of molecular sciences · 2022Article
- Leaf angle: a target of genetic improvement in cereal crops tailored for high-density planting.Plant biotechnology journal · 2022Review
- Genome-wide analysis of spatiotemporal expression patterns during rice leaf development.BMC genomics · 2021Article
- Developmental genetics of maize vegetative shoot architecture.Molecular breeding : new strategies in plant improvement · 2021Article
- Plant stem-cell organization and differentiation at single-cell resolution.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Ectopic Expression of the Transcriptional RegulatorThe Plant cell · 2020Article
- The MaizeThe Plant cell · 2020Article
- BLADE-ON-PETIOLE genes temporally and developmentally regulate the sheath to blade ratio of rice leaves.Nature communications · 2019Article
- Drawing a Line: Grasses and Boundaries.Plants (Basel, Switzerland) · 2018Review
- Mutations in CsPID encoding a Ser/Thr protein kinase are responsible for round leaf shape in cucumber (Cucumis sativus L.).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2018Article
- EctopicThe Plant cell · 2016Article
- Transcriptomic analyses indicate that maize ligule development recapitulates gene expression patterns that occur during lateral organ initiation.The Plant cell · 2014Article
- What determines a leaf's shape?EvoDevo · 2014Review
- Discovering functional modules across diverse maize transcriptomes using COB, the Co-expression Browser.PloS one · 2014Article
- Unequal redundancy in maize knotted1 homeobox genes.Plant physiology · 2014Article
- Usual and unusual development of the dicot leaf: involvement of transcription factors and hormones.Plant cell reports · 2013Review
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Maize (Zea mays) leaves provide a useful system to study how proximal/distal patterning is established because of the distinct tissues found in the distal blade and the proximal sheath. Several mutants disrupt this pattern, including the dominant knotted1-like homeobox (knox) mutants. knox genes encode homeodomain proteins of the TALE superclass of transcription factors. Class I knox genes are expressed in the meristem and down-regulated as leaves initiate. Gain-of-function phenotypes result from misexpression in leaves. We identified a new dominant allele of maize knotted1, Kn1-DL, which contains a transposon insertion in the promoter in addition to a tandem duplication of the kn1 locus. In situ hybridization shows that kn1 is misexpressed in two different parts of the blade that correlate with the different phenotypes observed. When kn1 is misexpressed along the margins, flaps of sheath-like tissue form along the margins. Expression in the distal tip leads to premature termination of the midrib into a knot and leaf bifurcation. The gain-of-function phenotypes suggest that kn1 establishes proximal/distal patterning when expressed in distal locations and lead to the hypothesis that kn1 normally participates in the establishment of proximal/distal polarity in the incipient leaf.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.