Skip to content

{ Category Archives } reviews

Mitochondrial dynamics in yeast (Hermann and Shaw, 1998)

This review shows that genes for mitochondrial integrity are encoded by the nucleus. Imagine transferring these in evolution to the nucleus! This is in agreement with a eukaryotic origin of mitochondria, because the proteins involved in generating the mitochondrial proteins could have been evolved gradually from other proteins, the ones that cause the growth of a primitive ER (lamellae […]

Mitochondria: more than just a powerhouse (McBride et al., 2006)

This recent article gives some interesting remarks about mitochondria, especially their structure which can  be modified by fission and fusion. The existance of a mtiochondrial reticulum is surprising anyway, because no prokaryote has shown these kind of structure. In fact, it is completely in line with my alternative hypothesis namely that they are derived from […]

Mitochondria and hydrogenosomes are two forms of the same fundamental organelle (Embley at al., 2003)

The following article actually shows that the co-called mitochondrial proteins are actually ubiquitous among eukaryotes, in line with a eukaryotic descent of mitochondria. If you take protein targeting from the nucleus into consideration, these proteins are even targeted to non-mitochondria. This leaves Embley et al to conclude that all organelles are dervied from the mitochondrial endosymbiont.  
Abstract: Published […]

Mitochondrial genomes: anything goes (Burger et al., 2003)

I have only the abstract from this article in Trends in Genetics by Burger from Franz B Langs’ group. mtDNA is functionally strongly conserved, but its implementation has diverged, in line with a design-by-contract in which implementation may vary as long as interface remains intact. [ToDo: Define functional interfaces between mitochondria, mitosomes and the cell.]
Mitochondria have […]

Opinion: Long Branch Attraction and Protist Phylogeny (Philippe 2000)

A review/opinion about ling banch attraction including its history. Philippe is ine of the people starting to question data based on this phenomenon, and also advocate of the Big Bang. My conclusion would be ‘Given the lack of information about how evolution proceeded, including intermediates, phylogenetic studies have to be interpreted with great care.’
LBA Artefact […]

Spliceosomal introns in a deep-branching eukaryote: The splice of life (Johnson, 2002)

This is the accompanying article to Nixon et al., 2002, here). As you can see in this figure, the tree was actually quite clear about the early branching.
The classification of all living organisms into three major divisions, Archaea (archaebacteria), Bacteria (eubacteria) and Eukarya (eukaryotes), over two decades ago (1) has changed our view of the […]

A review of long-branch attraction (Bergsten, 2005)

A rather long review article about long-branch attractionby Johannes Bergsten in Cladistics 2005. These articles normally give insight information because they deal about a controversy. Many problems in phylogenetic analyses are mentioned.
From the abstract: Methods suggested to avoid LBA-artifacts include excluding long-branch taxa, excluding faster evolving third codon positions, using inference methods less sensitive to LBA […]

Lateral Gene Transfer: Some Theoretical Aspects (Poole and Penny, 2003)

An article by Penny & Poole about lateral gene transfer. Not everyone is happy with the claims about lateral gene transfer as they show. My own opinion is that it seems that lateral gene transfer is necessary for some evolutionary theories to hold, but that logic reasoning goes against ‘rampant gene transfer’ as it would […]