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Related Concept Videos

Animal Mitochondrial Genetics02:59

Animal Mitochondrial Genetics

Among all the organelles in an animal cell, only mitochondria have their own independent genomes. Animal mitochondrial DNA is a double-stranded, closed-circular molecule with around 20,000 base pairs. Mitochondrial DNA is unique in that one of its two strands, the heavy, or H, -strand is guanine rich, whereas the complementary strand is cytosine rich and called the light, or L, -strand. Compared to nuclear DNA, mitochondrial DNA has a very low percentage of non-coding regions and is marked by...
Non-nuclear Inheritance01:29

Non-nuclear Inheritance

Most DNA resides in the nucleus of a cell. However, some organelles in the cell cytoplasm⁠—such as chloroplasts and mitochondria⁠—also have their own DNA. These organelles replicate their DNA independently of the nuclear DNA of the cell in which they reside. Non-nuclear inheritance describes the inheritance of genes from structures other than the nucleus.
Non-nuclear Inheritance01:29

Non-nuclear Inheritance

Most DNA resides in the nucleus of a cell. However, some organelles in the cell cytoplasm⁠—such as chloroplasts and mitochondria⁠—also have their own DNA. These organelles replicate their DNA independently of the nuclear DNA of the cell in which they reside. Non-nuclear inheritance describes the inheritance of genes from structures other than the nucleus.
Chromosomal Theory of Inheritance01:39

Chromosomal Theory of Inheritance

In 1866, Gregor Mendel published the results of his pea plant breeding experiments, providing evidence for predictable patterns in the inheritance of physical characteristics. The significance of his findings was not immediately recognized. In fact, the existence of genes was unknown at the time. Mendel referred to hereditary units as “factors.”
Mitochondrial Membranes01:45

Mitochondrial Membranes

A single mitochondrion is a bean-shaped organelle enclosed by a double-membrane system. The outer membrane of mitochondria is smooth and contains many porins - the integral membrane transporters. Porins enable free diffusion of ions and small uncharged molecules through the outer mitochondrial membrane but limit the transport of molecules larger than 5000 Daltons. Further, the outer mitochondrial membrane forms a unique structure called membrane contact sites with other subcellular organelles,...
Mitochondrial Membranes01:45

Mitochondrial Membranes

A single mitochondrion is a bean-shaped organelle enclosed by a double-membrane system. The outer membrane of mitochondria is smooth and contains many porins - the integral membrane transporters. Porins enable free diffusion of ions and small uncharged molecules through the outer mitochondrial membrane but limit the transport of molecules larger than 5000 Daltons. Further, the outer mitochondrial membrane forms a unique structure called membrane contact sites with other subcellular organelles,...

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Analysis of the Expression and Complexes Assembly of the Mitochondrial Respiratory Chain Proteins in the Fission Yeast Schizosaccharomyces pombe
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Mitochondrial inheritance in budding yeasts: towards an integrated understanding.

Lisa Solieri1

  • 1Department of Agricultural and Food Sciences, University of Modena and Reggio Emilia, via Amendola 2, Padiglione Besta, 42100 Reggio Emilia, Italy. lisa.solieri@unimore.it

Trends in Microbiology
|September 14, 2010
PubMed
Summary

Recent yeast mitogenomics research reveals how mitochondrial DNA (mtDNA) organization, inheritance, and protein functions impact yeast speciation. This understanding is crucial for studying mitochondrial nucleoid structure and organelle dynamics.

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08:55

Assessment of Submitochondrial Protein Localization in Budding Yeast Saccharomyces cerevisiae

Published on: July 19, 2021

Area of Science:

  • Yeast genetics and molecular biology
  • Mitochondrial genomics and dynamics

Background:

  • Advances in yeast mitogenomics illuminate mitochondrial genome diversity.
  • Mitochondrial DNA (mtDNA) inheritance in Saccharomyces cerevisiae is linked to nucleoid structure and organelle sorting.
  • Bifunctional mitochondrial proteins influence mito-nuclear interactions, yeast fitness, and speciation.

Purpose of the Study:

  • To review current knowledge on yeast mitogenomics.
  • To summarize insights into mtDNA inheritance, mt-nucleoid structure, and organelle dynamics.
  • To explore the implications of mito-nuclear genome interactions on yeast evolution.

Main Methods:

  • Literature review of recent studies in yeast mitogenomics and mtDNA inheritance.
  • Analysis of research on mitochondrial nucleoid structure and protein functions.
  • Synthesis of findings on organelle dynamics and speciation.

Main Results:

  • Yeast mitogenomics provides insights into mitochondrial genome organization and topology.
  • mtDNA inheritance is intricately connected to mt-nucleoid structure and organelle segregation.
  • Mito-nuclear interactions play a role in yeast fitness and the speciation process.

Conclusions:

  • Integrated understanding of yeast mitogenomics, mtDNA inheritance, and mito-nuclear interactions is essential.
  • Further research on mt-nucleoid structure and protein functions will advance knowledge of yeast evolution.
  • This review consolidates current understanding for future studies in yeast biology.