Mitochondria in parasitic plants

Plant mitochondrial genomes are renowned for their structural complexity, extreme variation in size and mutation rates, and ability to incorporate foreign DNA. Parasitic flowering plants are no exception, and the close association between parasite and host may even enhance the likelihood of horizont...

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Bibliographic Details
Published in:Mitochondrion 2020-05, Vol.52, p.173-182
Main Authors: Petersen, Gitte, Anderson, Benjamin, Braun, Hans-Peter, Meyer, Etienne H, Møller, Ian Max
Format: Article
Language:English
Subjects:
Horizontal gene transfer
Mitochondrial complex I
Mitochondrial genome
OXPHOS
Parasitic plants
Plant mitochondria
Respiratory chain
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Summary:Plant mitochondrial genomes are renowned for their structural complexity, extreme variation in size and mutation rates, and ability to incorporate foreign DNA. Parasitic flowering plants are no exception, and the close association between parasite and host may even enhance the likelihood of horizontal gene transfer (HGT) between them. Recent studies on mistletoes (Viscum) have revealed that these parasites have lost an exceptional number of mitochondrial genes, including all complex I genes of the respiratory chain. At the same time, an altered respiratory pathway has been demonstrated. Here we review the current understanding of mitochondrial evolution in parasitic plants with a special emphasis on HGT to and from parasite mitochondrial genomes, as well as the uniquely altered mitochondria in Viscum and related plants.
ISSN:1567-7249
1872-8278
1872-8278
DOI:10.1016/j.mito.2020.03.008