AI Article Synopsis

  • This study is the first to investigate how mitochondrial DNA (mtDNA) is passed on in diatoms, specifically looking at the species Haslea ostrearia.
  • The researchers analyzed the cox1 gene to track mtDNA inheritance from two parental clones collected from locations in France and Sweden.
  • Findings revealed that all offspring only inherited one type of cox1 haplotype, indicating that mtDNA in this species is transmitted uniparentally, which opens up new avenues for research.

Article Abstract

We present the first study examining mtDNA transmission in diatoms, using sexual progeny of the pennate species Haslea ostrearia (Naviculaceae). A fragment of the cytochrome oxidase subunit I gene (cox1) with 7 nucleic substitutions between parental clones was used as a parental tracer in 16 F1 clones obtained from two pairs of mating crosses. Each cross involved a parental clone isolated from France (Bay of Bourgneuf) and Sweden (Kattegat Bay). We determined that all progeny possessed only one cox1 parental haplotype. These results suggest that the mitochondrial DNA transmission in H. ostrearia is uniparental. Implications and new topics of investigation are discussed.

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Source
http://dx.doi.org/10.1016/j.protis.2013.01.001DOI Listing

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