ArticleGenetics2010
Flavonoid phytoalexin-dependent resistance to anthracnose leaf blight requires a functional yellow seed1 in Sorghum bicolor.
Article in Genetics, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.
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Who cites it
50 citing papers in PubMed.
- Identification and Fine Mapping of a MYB-like Transcription Factor Regulating Yellow Grain inPlants (Basel, Switzerland) · 2026Article
- Genome-wide association analysis reveals genetic variations and candidate genes associated with tannin and starch contents in sorghum.BMC genomics · 2026Article
- The Germination Paradox in Sorghum: A Review.Foods (Basel, Switzerland) · 2026Review
- Genetic architecture of anthocyanin pigment traits and purple spot (Stemphylium vesicarium) resistance in an FThe plant genome · 2025Article
- Loss of Pleiotropic Regulatory Functions inPlant direct · 2025Article
- Major impacts of widespread structural variation on sorghum.Genome research · 2024Article
- UV-induced reactive oxygen species and transcriptional control of 3-deoxyanthocyanidin biosynthesis in black sorghum pericarp.Frontiers in plant science · 2024Article
- Phosphate deficiency induced by infection promotes synthesis of anthracnose-resistant anthocyanin-3Horticulture research · 2023Article
- GWAS of grain color and tannin content in Chinese sorghum based on whole-genome sequencing.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023Article
- Recent advancements in multifaceted roles of flavonoids in plant-rhizomicrobiome interactions.Frontiers in plant science · 2023Review
- Genetic mapping of sorghum resistance to an Illinois isolate of Colletotrichum sublineola.The plant genome · 2022Article
- Sorghum Association Panel whole-genome sequencing establishes cornerstone resource for dissecting genomic diversity.The Plant journal : for cell and molecular biology · 2022Article
- Article
- Linkage QTL Mapping and Genome-Wide Association Study on Resistance in Chickpea toFrontiers in genetics · 2022Article
- Changes in the root-associated bacteria of sorghum are driven by the combined effects of salt and sorghum development.Environmental microbiome · 2021Article
- Review
- Variation in Gene Expression between TwoPlants (Basel, Switzerland) · 2021Article
- Genetic dissection of QTLs associated with spikelet-related traits and grain size in sorghum.Scientific reports · 2021Article
- Genetic characterization of a Sorghum bicolor multiparent mapping population emphasizing carbon-partitioning dynamics.G3 (Bethesda, Md.) · 2021Article
- Genome-wide association analysis reveals seed protein loci as determinants of variations in grain mold resistance in sorghum.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2021Article
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3 authors.
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No grant is acknowledged in the PubMed record.
Abstract
In Sorghum bicolor, a group of phytoalexins are induced at the site of infection by Colletotrichum sublineolum, the anthracnose fungus. These compounds, classified as 3-deoxyanthocyanidins, have structural similarities to the precursors of phlobaphenes. Sorghum yellow seed1 (y1) encodes a MYB transcription factor that regulates phlobaphene biosynthesis. Using the candystripe1 transposon mutagenesis system in sorghum, we have isolated functional revertants as well as loss-of-function alleles of y1. These near-isogenic lines of sorghum show that, compared to functionally revertant alleles, loss of y1 lines do not accumulate phlobaphenes. Molecular characterization of two null y1 alleles shows a partial internal deletion in the y1 sequence. These null alleles, designated as y1-ww1 and y1-ww4, do not accumulate 3-deoxyanthocyanidins when challenged with the nonpathogenic fungus Cochliobolus heterostrophus. Further, as compared to the wild-type allele, both y1-ww1 and y1-ww4 show greater susceptibility to the pathogenic fungus C. sublineolum. In fungal-inoculated wild-type seedlings, y1 and its target flavonoid structural genes are coordinately expressed. However, in y1-ww1 and y1-ww4 seedlings where y1 is not expressed, steady-state transcripts of its target genes could not be detected. Cosegregation analysis showed that the functional y1 gene is genetically linked with resistance to C. sublineolum. Overall results demonstrate that the accumulation of sorghum 3-deoxyanthocyanidin phytoalexins and resistance to C. sublineolum in sorghum require a functional y1 gene.
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