Evidence map›Paper›PMID 19104076›Full record

ArticleGenetics2009

The a2 mating-type locus genes lga2 and rga2 direct uniparental mitochondrial DNA (mtDNA) inheritance and constrain mtDNA recombination during sexual development of Ustilago maydis.

Michael Fedler, Kai-Stephen Luh, Kathrin Stelter, Fernanda Nieto-Jacobo, Christoph W Basse

Open access · bronzeAbstract read
In one paragraph

Article in Genetics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
1.5field-weighted citation impact, top 18% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

35 citing papers in PubMed, 80 citations in OpenAlex.

  1. Insights into the Phylogeny ofJournal of fungi (Basel, Switzerland) · 2026
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  2. Article
  3. Article
  4. Tracing the evolution and genomic dynamics of mating-type loci inbioRxiv : the preprint server for biology · 2025
    Article
  5. Article
  6. Review
  7. Comparative mitogenomic analysis ofFrontiers in physiology · 2024
    Article
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  11. Article
  12. Review
  13. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Michael FedlerMax-Planck-Institute for Terrestrial Microbiology, Department of Organismic Interactions, Marburg, Germany.
Kai-Stephen Luh
Kathrin Stelter
Fernanda Nieto-Jacobo
Christoph W Basse
Max Planck Institute for Terrestrial Microbiology · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Uniparental inheritance of mitochondria dominates among sexual eukaryotes. However, little is known about the mechanisms and genetic determinants. We have investigated the role of the plant pathogen Ustilago maydis genes lga2 and rga2 in uniparental mitochondrial DNA (mtDNA) inheritance during sexual development. The lga2 and rga2 genes are specific to the a2 mating-type locus and encode small mitochondrial proteins. On the basis of identified sequence polymorphisms due to variable intron numbers in mitochondrial genotypes, we could demonstrate that lga2 and rga2 decisively influence mtDNA inheritance in matings between a1 and a2 strains. Deletion of lga2 favored biparental inheritance and generation of recombinant mtDNA molecules in combinations in which inheritance of mtDNA of the a2 partner dominated. Conversely, deletion of rga2 resulted in predominant loss of a2-specific mtDNA and favored inheritance of the a1 mtDNA. Furthermore, expression of rga2 in the a1 partner protected the associated mtDNA from elimination. Our results indicate that Lga2 in conjunction with Rga2 directs uniparental mtDNA inheritance by mediating loss of the a1-associated mtDNA. This study shows for the first time an interplay of mitochondrial proteins in regulating uniparental mtDNA inheritance.

Indexed as

Genes, MitochondrialInheritance PatternsRecombination, GeneticDNA, MitochondrialGene Expression Regulation, FungalGenes, Mating Type, FungalGenotypeIntronsUstilagoDNA, Mitochondrial

Identifiers

PMID19104076
PMCPMC2651059
OpenAlexW2142696735

What OpenQuestion holds

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Registered trials

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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.