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Yazaki E, Yabuki A, Nishimura Y, Shiratori T, Hashimoto T, Inagaki Y. Microheliella maris possesses the most gene-rich mitochondrial genome in Diaphoretickes. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.1030570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The mitochondrial genomes are very diverse, but their evolutionary history is unclear due to the lack of efforts to sequence those of protists (unicellular eukaryotes), which cover a major part of the eukaryotic tree. Cryptista comprises cryptophytes, goniomonads, kathablepharids, and Palpitomonas bilix, and their mitochondrial genomes (mt-genomes) are characterized by various gene contents, particularly the presence/absence of an ancestral (bacterial) system for the cytochrome c maturation system. To shed light on mt-genome evolution in Cryptista, we report the complete mt-genome of Microheliella maris, which was recently revealed to branch at the root of Cryptista. The M. maris mt-genome was reconstructed as a circular mapping chromosome of 61.2 kbp with a pair of inverted repeats (12.9 kbp) and appeared to be the most gene-rich among the mt-genomes of the members of Diaphoretickes (a mega-scale eukaryotic assembly including Archaeplastida, Cryptista, Haptista, and SAR) studied so far, carrying 53 protein-coding genes. With this newly sequenced mt-genome, we inferred and discussed the evolution of the mt-genome in Cryptista and Diaphoretickes.
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Huang L, Gao B, Wang F, Zhao W, Zhang C. The complete chloroplast genome of an edaphic oleaginous microalga Vischeria stellata SAG 33.83 (Eustigmatophyceae). MITOCHONDRIAL DNA PART B 2019. [DOI: 10.1080/23802359.2019.1580166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Luodong Huang
- Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Baoyan Gao
- Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Feifei Wang
- Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Wei Zhao
- Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Chengwu Zhang
- Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou, China
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