He has also identified several cases of horizontal gene transfer.

Horizontal gene transfer seems to be common among many microbes.

Horizontal gene transfer makes it even more difficult to define the word "species".

This is theoretically possible under principles of "horizontal gene transfer."

They have also been found in bacteria, where their presence is thought to be due to horizontal gene transfer.

Artificial horizontal gene transfer is a form of genetic engineering.

Horizontal gene transfer would also be a good illustration.

When genes are inserted, they usually come from a different species, which is a form of horizontal gene transfer.

This actually also happens, though very rarely in higher organisms (see horizontal gene transfer).

Most likely, they were acquired through horizontal gene transfer from viral hosts.

In certain bacteria, mobile genetic elements and horizontal gene transfer.

Evidence has begun to mount for horizontal gene transfer.

A recent acquisition by horizontal gene transfer would be unlikely to have integrated itself to this degree.

There have also been well-documented cases of horizontal gene transfer between eukaryotes.

(This last instance is probably a case of horizontal gene transfer.)

Several abundantly expressed genes are also horizontal gene transfer candidates (see below).

In evolution, viruses are an important means of horizontal gene transfer, which increases genetic diversity.

Horizontal gene transfer is common among bacteria, even amongst very distantly related ones.

Another possibility is that evolution of the system involved a horizontal gene transfer between unrelated microorganisms.

Genetic variation may be introduced via mutation or horizontal gene transfer.

This suggests they arrived by horizontal gene transfer.

Horizontal gene transfer during this era was responsible for the fast early evolution of complex biological structures.

They may have arisen independently many times, or perhaps just once and then spread to other kingdoms by horizontal gene transfer.

Plasmids are often associated with conjugation, a mechanism of horizontal gene transfer.

Archaea show high levels of horizontal gene transfer between lineages.