consolidated articles of peer reviewed research, experimentation and observations about evolution.

http://www.nature.com/scitable/topicpage/origins-of-new-genes-and-pseudogenes-835

Some examples of the addition of novelty in the genome from horizontal gene transfers

Horizontal transfer of genes from bacteria to some fungi, especially the yeast Saccharomyces cerevisiae, has been well
documented.
(http://ec.asm.org/content/4/6/1102.full)

There is also recent evidence that the adzuki bean beetle has somehow acquired genetic material from its (non-beneficial)
endosymbiont Wolbachia.
(http://www.ncbi.nlm.nih.gov/pmc/articles/PMC137875/)

New examples have recently been reported demonstrating that Wolbachia bacteria represent an important potential source of
genetic material in arthropods and filarial nematodes.
(http://www.ncbi.nlm.nih.gov/pubmed/17761848)

There is also evidence for horizontal transfer of mitochondrial genes to parasites of the Rafflesiaceae plant family from their
hosts (also plants)
(http://www.ncbi.nlm.nih.gov/pubmed/15256617)

Striga hermonthica, a eudicot, has undergone a horizontal gene transfer from sorghum (Sorghum bicolor) to its nuclear
genome.
(http://www.ncbi.nlm.nih.gov/pubmed/20508124)

Researchers at the University of Arizona have found that the genome of pea aphids (Acyrthosiphon pisum) contains multiple
genes that were horizontally transferred from fungi.
(http://www.ncbi.nlm.nih.gov/pubmed/20431015)

It was recently suggested that the malaria causing pathogen Plasmodium vivax has horizontally acquired genetic material
from humans that might help facilitate its long stay in the body.
(http://precedings.nature.com/documents/5690/version/1/)

The HhMAN1 is a gene in the genome of the coffee borer beetle (Hypothenemus hampei) that resembles bacterial genes,
and is thought to be transferred from bacteria in the beetle's gut.
(http://www.nature.com/news/bacterial-gene-helps-coffee-beetle-get-its-fix-1.10116)

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2001186/

http://www.pnas.org/content/88/20/9051.short

http://m.bbc.co.uk/news/science-environment-22108784

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3145266/

http://www.ncbi.nlm.nih.gov/pubmed/10572964


http://www.newscientist.com/blogs/shortsharpscience/2011/04/rna-enzyme-makes-another-rna-e.html

http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.0060063