Article
Genetics & Heredity
Su-Hao Wang, Shi-Yun Hu, Min Li, Min Liu, Hao Sun, Jia-Rui Zhao, Wen-Ting Chen, Ming-Long Yuan
Summary: The study conducted a comparative analysis of the mitochondrial genomes of Tenebrionidae and found that the genomes were highly conserved in terms of size, arrangement, composition, and usage. Additionally, the study provided insights into the evolution and function of tRNA-like sequences in the mitochondrial genomes of Tenebrionidae. Phylogenetic analysis supported the monophyly of certain subfamilies while showing that others were polyphyletic.
Article
Biochemistry & Molecular Biology
Gui-Xin Peng, Xue-Ling Mao, Yating Cao, Shi-Ying Yao, Qing-Run Li, Xin Chen, En-Duo Wang, Xiao-Long Zhou
Summary: The study found that mitochondrial aminoacyl-tRNA synthetases (mito aaRSs) partially colocalize with mitochondrial RNA granules (MRGs), possibly facilitated by their tRNA-binding capacity. Additionally, several mito aaRS-containing complexes were discovered, and their activities were influenced by interactions. These findings deepen our understanding of the functional and regulatory mechanisms of mito aaRSs.
NUCLEIC ACIDS RESEARCH
(2022)
Article
Plant Sciences
Furong Zhong, Wenjia Ke, Yirou Li, Xiaoyan Chen, Tao Zhou, Binjie Xu, Luming Qi, Zhuyun Yan, Yuntong Ma
Summary: The mitochondrial genomes of Coptis chinensis, Coptis deltoidea and Coptis omeiensis were assembled for the first time, revealing the presence of repeat sequences and foreign sequences related to rearrangements and changes in gene position. Comparative analysis showed that the protein-coding genes under selection pressure mainly belong to mitochondrial complex I. Heat stress negatively affected the mitochondrial complex I and V, antioxidant enzyme system, ROS accumulation and ATP production in Coptis plants.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Multidisciplinary Sciences
Dawei Liu, Yongwu Zhou, Yiling Fei, Chunping Xie, Senlin Hou
Summary: The study sequenced the complete mitochondrial genome of Baer's Pochard and found structural and compositional similarities with other Aythya species. Among the protein-coding genes of Aythya species, ATP8 was identified as the fastest-evolving gene, while COII was the slowest-evolving gene. The phylogenetic tree of Anatidae family showed that the target species and three other Aythya species formed a monophyletic group.
SCIENTIFIC REPORTS
(2021)
Article
Ecology
YanPing Xie, GangGang Yang, Chan Zhang, XingWang Zhang, XianFeng Jiang
Summary: This study sequenced and analyzed the complete chloroplast genomes of a Primula species in China, and found that the genomes of Primula species had similar structures and GC contents, but showed variations in SSR loci and hypervariable regions. The chloroplast genome sequences provided valuable information for the phylogeny and population genetics of Primula species.
ECOLOGY AND EVOLUTION
(2023)
Article
Multidisciplinary Sciences
Przemyslaw Szafranski
Summary: Some mitochondrial protein-coding genes have split into complementary genes in protists, land plants, and animals. This split has also been observed in wasps of the genus Dielis and in another Campsomerini genus, Megacampsomeris. The study describes a previously unrecognized species of Dielis, D. tejensis, which has unique features in its mtDNA compared to the sympatric sibling species Dielis plumipes fossulana. These findings highlight unconventional evolutionary processes in hymenopteran mitogenomes.
SCIENTIFIC REPORTS
(2023)
Article
Biochemistry & Molecular Biology
Daniel Schindler, Roy S. K. Walker, Shuangying Jiang, Aaron N. Brooks, Yun Wang, Carolin A. Muller, Charlotte Cockram, Yisha Luo, Alicia Garcia, Daniel Schraivogel, Julien Mozziconacci, Noah Pena, Mahdi Assari, Maria del Carmen Sanchez Olmos, Yu Zhao, Alba Ballerini, Benjamin A. Blount, Jitong Cai, Lois Ogunlana, Wei Liu, Katarina Jonsson, Dariusz Abramczyk, Eva Garcia-Ruiz, Tomasz W. Turowski, Reem Swidah, Tom Ellis, Tao Pan, Francisco Antequera, Yue Shen, Conrad A. Nieduszynski, Romain Koszul, Junbiao Dai, Lars M. Steinmetz, Jef D. Boeke, Yizhi Cai
Summary: This study reports the design, construction, and characterization of a tRNA neochromosome, which functions as an additional, de novo counterpart to the native complement of Saccharomyces cerevisiae. The tRNA neochromosome houses all relocated nuclear tRNA genes and exhibits a potent selective force. Its construction demonstrates the tractability of the yeast model and provides opportunities to test hypotheses surrounding non-coding RNAs.
Article
Biochemistry & Molecular Biology
Zhiyuan Zhao, Kongfu Zhu, Dexiang Tang, Yuanbing Wang, Yao Wang, Guodong Zhang, Yupeng Geng, Hong Yu
Summary: The mycoparasite fungi of Clonostachys play a role in biological control, with their mitochondrial genomes showing gene rearrangements. The analysis of protein-coding genes suggests a high degree of conservation and purifying selection among the Clonostachys species.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Biology
Yosur G. Fiteha, Mahmoud Magdy
Summary: This study focuses on the evolutionary dynamics of mitochondrial tRNA in cichlids and its impact on cichlid diversity. Comparative analysis of mitogenomic data reveals varying levels of genetic divergence in different tRNA structures in cichlids.
Article
Parasitology
Yu Nie, Yi-Tian Fu, Yu Zhang, Yuan-Ping Deng, Wei Wang, Ya Tu, Guo-Hua Liu
Summary: This study investigated the mitochondrial genomes of two louse species from the family Philopteridae and found significant gene rearrangements. Phylogenetic analysis suggested a clear genetic distinction between Falcolipeurus and Ibidoecus, providing valuable genetic markers for further systematic studies of bird lice.
PARASITES & VECTORS
(2021)
Article
Plant Sciences
Peng Zhou, Qiang Zhang, Fei Li, Jing Huang, Min Zhang
Summary: This study sequenced and annotated the mitochondrial genome of I. metabaptista and compared it with the mitochondrial genomes of other asterids, providing essential background information for further understanding of the genetics of this plant and laying the foundation for future studies on molecular breeding of I. metabaptista.
Article
Biochemistry & Molecular Biology
Chaoqian Jiang, Lishuang Geng, Jinpeng Wang, Yingjuan Liang, Xiaochen Guo, Chang Liu, Yunjing Zhao, Junxue Jin, Zhonghua Liu, Yanshuang Mu
Summary: We developed a CRISPR-based platform that can perform four functions and target multiple genomic loci encoded in a single transcript. By fusing specific RNA hairpins with gRNA scaffolds and utilizing paired RNA-binding proteins, we achieved simultaneous and independent regulation of multiple target genes. This system provides a powerful tool for investigating synthetic biology questions and engineering complex-phenotype medical applications.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Biochemistry & Molecular Biology
Jessica M. Warren, Thalia Salinas-Giege, Deborah A. Triant, Douglas R. Taylor, Laurence Drouard, Daniel B. Sloan
Summary: Research on mitochondrial genomes of Silene plants reveals the process of tRNA gene loss and replacement, as well as the import of nuclear-encoded tRNAs. Even in systems with recent mitochondrial tRNA gene loss, nuclear-encoded counterparts may likely replace mitochondrial tRNAs, providing insight into the evolutionary history of plant mitochondrial genomes.
MOLECULAR BIOLOGY AND EVOLUTION
(2021)
Article
Biochemistry & Molecular Biology
Javier Santamaria-Gomez, Miguel Angel Rubio, Rocio Lopez-Igual, Ana B. Romero-Losada, Fernando M. Delgado-Chaves, Roque Bru-Martinez, Francisco J. Romero-Campero, Antonia Herrero, Michael Ibba, Jesus A. G. Ochoa de Alda, Ignacio Luque
Summary: This study reveals the existence of long tRNA gene arrays in some bacteria, which are induced when the translation machinery is impaired, directly contributing to cell survival. The cellular response to this challenge involves a global reprogramming of the transcriptome in two phases.
NUCLEIC ACIDS RESEARCH
(2021)
Article
Genetics & Heredity
J. Antonio Baeza, Ryan Barata, Dilani Rajapakse, Jayra Penaloza, Preston Harrison, Adam Haberski
Summary: This study demonstrates the successful assembly of mitochondrial genomes from eDNA samples, which can be used for non-intrusive monitoring and conservation strategies of vulnerable species.
