ArticleJournal of microbiology (Seoul, Korea)2013
Structure and function of the mating-type locus in the homothallic ascomycete, Didymella zeae-maydis.
Article in Journal of microbiology (Seoul, Korea), 2013. 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.
- Structure and number of mating pheromone genes is closely linked to sexual reproductive strategy in Huntiella.BMC genomics · 2023Article
- The Role of Chromatin and Transcriptional Control in the Formation of Sexual Fruiting Bodies in Fungi.Microbiology and molecular biology reviews : MMBR · 2022Review
- First Characterisation of thePathogens (Basel, Switzerland) · 2021Article
- Article
- Genetic Dissection of Sexual Reproduction in a Primary Homothallic Basidiomycete.PLoS genetics · 2016Article
- Article
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Homothallic Didymella zeae-maydis undergoes sexual reproduction by selfing. Sequence analysis of the mating type (MAT) locus from this fungus revealed that MAT carries both MAT1-1-1 and MAT1-2-1 genes found in heterothallic Dothideomycetes, separated by ∼1.0 kb of noncoding DNA. To understand the mechanistic basis of homothallism in D. zeae-maydis, each of the MAT genes was deleted and the effects on selfing and on ability to cross in a heterothallic manner were determined. The strain carrying an intact MAT1-1-1 but defective MAT1-2-1 gene (MAT1-1-1;ΔMAT1-2-1) was self-sterile, however strains carrying an intact MAT1-2-1 but defective MAT1-1-1 gene (ΔMAT1-1-1;MAT1-2-1), when selfed, showed delayed production of a few ascospores. Attempts to cross the two MAT deletion strains yielded fewer ΔMAT1-1-1;MAT1-2-1 than MAT1-1-1;ΔMAT1-2-1 progeny and very few ascospores overall compared to WT selfs. This study demonstrates that, as in the other homothallic Dothideomycetes, both MAT genes are required for full fertility, but that, in contrast to other cases, the presence of a single MAT1-2-1 gene can induce homothallism, albeit inefficiently, in D. zeae-maydis.
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