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Article

Investigating Human Mitochondrial Genomes in Single Cells

1
Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies (IBIOM), National Research Council, Via Giovanni Amendola 118, 70126 Bari, Italy
2
Department of Biosciences, Biotechnology and Biopharmaceutics, University of Bari “A. Moro”, Via Orabona 4, 70125 Bari, Italy
*
Author to whom correspondence should be addressed.
Present address: Dipartimento di Biologia, Università degli Studi di Firenze, Florence, Italy.
Genes 2020, 11(5), 534; https://doi.org/10.3390/genes11050534
Received: 28 February 2020 / Revised: 7 May 2020 / Accepted: 8 May 2020 / Published: 11 May 2020
(This article belongs to the Special Issue A Tale of Genes and Genomes)
Mitochondria host multiple copies of their own small circular genome that has been extensively studied to trace the evolution of the modern eukaryotic cell and discover important mutations linked to inherited diseases. Whole genome and exome sequencing have enabled the study of mtDNA in a large number of samples and experimental conditions at single nucleotide resolution, allowing the deciphering of the relationship between inherited mutations and phenotypes and the identification of acquired mtDNA mutations in classical mitochondrial diseases as well as in chronic disorders, ageing and cancer. By applying an ad hoc computational pipeline based on our MToolBox software, we reconstructed mtDNA genomes in single cells using whole genome and exome sequencing data obtained by different amplification methodologies (eWGA, DOP-PCR, MALBAC, MDA) as well as data from single cell Assay for Transposase Accessible Chromatin with high-throughput sequencing (scATAC-seq) in which mtDNA sequences are expected as a byproduct of the technology. We show that assembled mtDNAs, with the exception of those reconstructed by MALBAC and DOP-PCR methods, are quite uniform and suitable for genomic investigations, enabling the study of various biological processes related to cellular heterogeneity such as tumor evolution, neural somatic mosaicism and embryonic development. View Full-Text
Keywords: scWGS; mtDNA; single-cell scWGS; mtDNA; single-cell
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MDPI and ACS Style

Diroma, M.A.; Varvara, A.S.; Attimonelli, M.; Pesole, G.; Picardi, E. Investigating Human Mitochondrial Genomes in Single Cells. Genes 2020, 11, 534. https://doi.org/10.3390/genes11050534

AMA Style

Diroma MA, Varvara AS, Attimonelli M, Pesole G, Picardi E. Investigating Human Mitochondrial Genomes in Single Cells. Genes. 2020; 11(5):534. https://doi.org/10.3390/genes11050534

Chicago/Turabian Style

Diroma, Maria A., Angelo S. Varvara, Marcella Attimonelli, Graziano Pesole, and Ernesto Picardi. 2020. "Investigating Human Mitochondrial Genomes in Single Cells" Genes 11, no. 5: 534. https://doi.org/10.3390/genes11050534

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