AI Article Synopsis
- Mitogenome evolution in the Chlorophyceae shows a unique change in the Chlamydomonadales + Sphaeropleales group towards a simpler structure.
- The lack of mitogenomes from their sister group (Oedogoniales, Chaetophorales, and Chaetopeltidales) makes it uncertain if their shared ancestor had a simpler or more complex mitogenome.
- The newly reported mitogenomes for Oedogoniales and Chaetophorales reveal a common set of 41 essential genes and all 27 typical tRNA genes, indicating a more ancestral-type structure.
Article Abstract
Mitogenome evolution in the Chlorophyceae is characterized by the acquisition of a reduced-derived pattern by the Chlamydomonadales + Sphaeropleales clade. Because no mitogenomes are available for the sister clade Oedogoniales + Chaetophorales + Chaetopeltidales, it remains unclear whether the common ancestor of chlorophycean green algae harbored a reduced-derived or ancestral-type mitogenome. The 70,191 and 46,765-bp mitogenomes reported here for var. (Oedogoniales) and (Chaetophorales), respectively, shed light on this question. Both contain the same set of 41 conserved genes, a repertoire lacking numerous protein-coding genes but featuring all 27 tRNA genes typically found in ancestral-type mitogenomes.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7748496 | PMC |
| http://dx.doi.org/10.1080/23802359.2019.1710607 | DOI Listing |
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