ArticlePloS one2013
Linkage mapping identifies the sex determining region as a single locus in the Pennate diatom Seminavis robusta.
Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- High-quality genome assembly and annotation of Thalassiosira rotula (synonym of Thalassiosira gravida).Scientific data · 2025Article
- What Was Old Is New Again: The Pennate DiatomMarine drugs · 2022Review
- Pheromone Mediated Sexual Reproduction of Pennate Diatom Cylindrotheca closterium.Journal of chemical ecology · 2021Article
- MRP3 is a sex determining gene in the diatom Pseudo-nitzschia multistriata.Nature communications · 2018Article
- Article
- Establishment of Genetic Transformation in the Sexually Reproducing Diatoms Pseudo-nitzschia multistriata and Pseudo-nitzschia arenysensis and Inheritance of the Transgene.Marine biotechnology (New York, N.Y.) · 2015Article
- Origins of eukaryotic sexual reproduction.Cold Spring Harbor perspectives in biology · 2014Review
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Authors and funding
5 authors.
Funding
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Abstract
The pennate diatom Seminavis robusta, characterized by an archetypical diatom life cycle including a heterothallic mating system, is emerging as a model system for studying the molecular regulation of the diatom cell and life cycle. One of its main advantages compared with other diatom model systems is that sexual crosses can be made routinely, offering unprecedented possibilities for forward genetics. To date, nothing is known about the genetic basis of sex determination in diatoms. Here, we report on the construction of mating type-specific linkage maps for S. robusta, and use them to identify a single locus sex determination system in this diatom. We identified 13 mating type plus and 15 mating type minus linkage groups obtained from the analysis of 463 AFLP markers segregating in a full-sib family, covering 963.7 and 972.2 cM, respectively. Five linkage group pairs could be identified as putative homologues. The mating type phenotype mapped as a monogenic trait, disclosing the mating type plus as the heterogametic sex. This study provides the first evidence for a genetic sex determining mechanism in a diatom.
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