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Horizontal gene transfer in eukaryotic evolution

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TLDR
The number of well-supported cases of transfer from both prokaryotes and eukaryotes, many with significant functional implications, is now expanding rapidly and major recent trends include the important role of HGT in adaptation to certain specialized niches and the highly variable impact of H GT in different lineages.
Abstract
Horizontal gene transfer (HGT; also known as lateral gene transfer) has had an important role in eukaryotic genome evolution, but its importance is often overshadowed by the greater prevalence and our more advanced understanding of gene transfer in prokaryotes. Recurrent endosymbioses and the generally poor sampling of most nuclear genes from diverse lineages have also complicated the search for transferred genes. Nevertheless, the number of well-supported cases of transfer from both prokaryotes and eukaryotes, many with significant functional implications, is now expanding rapidly. Major recent trends include the important role of HGT in adaptation to certain specialized niches and the highly variable impact of HGT in different lineages.

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Book ChapterDOI

Role of intercompartmental DNA transfer in producing genetic diversity.

TL;DR: Intercompartmental DNA transfer appears to be an inescapable phenomenon that has had a broad impact on eukaryotic evolution, affecting DNA repair, gene and genome evolution, and redirecting proteins to different target compartments.
Journal ArticleDOI

Cobalamin-independent Methionine Synthase Distribution and Influence on Vitamin B12 Growth Requirements in Marine Diatoms.

TL;DR: This study validates the concept that the distribution of B12-independent methionine synthase in ecologically relevant diatom genera, including the closely related bloom-forming genera Pseudo-nitzschia and Fragilariopsis, and substantiates a lack of obvious grouping in METE presence among diatom clades.
Journal Article

Evidence for Horizontally Transferred Genes Involved in the Biosynthesis of Vitamin B1, B5, and B7 in Heterodera glycines

TL;DR: This finding complements the previous discovery of a vitamin B₆ biosynthesis pathway within the nematode and appears to be missing the initial enzymes required for full de novo biosynthesis, suggesting that initial substrates in the pathways are obtained exogenously.
Journal ArticleDOI

Resistance and tolerance to foreign elements by prokaryotic immune systems — curating the genome

TL;DR: Prokaryotic restriction–modification and CRISPR–Cas activities are examined and their analogy to mammalian immune pathways is discussed and it is explained how their capacities for resistance and tolerance are optimized to reduce parasitism and immunopathology during encounters with non-self.
Journal ArticleDOI

Evolutionary dynamics of protein domain architecture in plants

TL;DR: Analysis of lineage-based protein domain architecture content in 14 completed green plant genomes shows the conservation of universal domain architectures in all available plant genomes, indicating the presence of an evolutionarily conserved, core set of protein components.
References
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Journal ArticleDOI

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Journal ArticleDOI

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Journal ArticleDOI

The Genome of the African Trypanosome Trypanosoma brucei

Matthew Berriman, +104 more
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Journal ArticleDOI

Genome evolution in yeasts

TL;DR: Analysis of chromosome maps and genome redundancies reveal that the different yeast lineages have evolved through a marked interplay between several distinct molecular mechanisms, including tandem gene repeat formation, segmental duplication, a massive genome duplication and extensive gene loss.
Journal ArticleDOI

Phylogenetic Classification and the Universal Tree

TL;DR: Molecular phylogeneticists will have failed to find the “true tree,” not because their methods are inadequate or because they have chosen the wrong genes, but because the history of life cannot properly be represented as a tree.
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