ArticlePlant molecular biology2006
The maize Oil yellow1 (Oy1) gene encodes the I subunit of magnesium chelatase.
Article in Plant molecular biology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.
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38 citing papers in PubMed, 102 citations in OpenAlex.
- Map-based cloning and functional validation of ClChlH governing yellow rind color in watermelon (Citrullus lanatus).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Natural variation in tetrapyrrole biosynthetic enzymes and their regulation modifies the maize chlorophyll mutant Oy1-N1989.Plant physiology · 2025Article
- Deletion of the gene encoding the magnesium chelatase I subunit resulted in a novel wheat leaf colour mutant.Plant biotechnology journal · 2025Article
- ZmDof08, a zinc finger transcription factor, plays critical roles in photosynthesis in maize.Plant cell reports · 2025Article
- Examination of gene expression inmicroPublication biology · 2025Article
- A large deletion conferring pale green leaves of maize.BMC plant biology · 2023Article
- Magnesium chelatase subunit D is not only required for chlorophyll biosynthesis and photosynthesis, but also affecting starch accumulation in Manihot esculenta Crantz.BMC plant biology · 2023Article
- Transcriptomics and Metabolomics Analysis Provides Insight into Leaf Color and Photosynthesis Variation of the Yellow-Green Leaf Mutant of Hami Melon (Plants (Basel, Switzerland) · 2023Article
- Identification and haplotype analysis of SiCHLI: a gene for yellow-green seedling as morphological marker to accelerate foxtail millet (Setaria italica) hybrid breeding.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023Article
- Article
- Variation in Maize Chlorophyll Biosynthesis Alters Plant Architecture.Plant physiology · 2020Article
- Interaction Between Induced and Natural Variation atG3 (Bethesda, Md.) · 2020Article
- Fine Mapping and Transcriptome Analysis of Virescent Leaf GeneFrontiers in plant science · 2020Article
- Cytological, genetic, and proteomic analysis of a sesame (Sesamum indicum L.) mutant Siyl-1 with yellow-green leaf color.Genes & genomics · 2020Article
- Single Nucleotide Mutagenesis of theFrontiers in plant science · 2020Article
- The tomato WV gene encoding a thioredoxin protein is essential for chloroplast development at low temperature and high light intensity.BMC plant biology · 2019Article
- High Temporal-Resolution Transcriptome Landscape of Early Maize Seed Development.The Plant cell · 2019Article
- AG3 (Bethesda, Md.) · 2019Article
- Adult plant resistance in maize to northern leaf spot is a feature of partial loss-of-function alleles of Hm1.PLoS pathogens · 2018Article
- Candidate Genes for Yellow Leaf Color in Common Wheat (International journal of molecular sciences · 2018Article
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Authors and funding
8 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Semi-dominant Oil yellow1 (Oy1) mutants of maize (Zea mays) are deficient in the conversion of protoporphyrin IX to magnesium protoporphyrin IX, the first committed step of chlorophyll biosynthesis. Using a candidate gene approach, a cDNA clone was isolated that was predicted to encode the I subunit of magnesium chelatase (ZmCHLI) and mapped to the same genetic interval as Oy1. Allelic variation was identified at ZmCHLI between wild-type plants and plants carrying semi-dominant alleles of Oy1. These differences revealed putative amino acid substitutions that could account for the alterations in protein function. Candidate lesions were tested by introduction of homologous changes into the Synechocystis magnesium chelatase I gene (SschlI) and characterization of the activity of mutant protein variants in an in vitro enzyme activity assay. The results of these analyses suggest that SsChlI protein variants containing the substitutions identified in the dominant Oy1 maize alleles lack activity necessary for magnesium chelation and confer a semi-dominant phenotype via competitive inhibition of wild-type SsChlI.
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