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Why are there different species of bacteria?

The usual (high school or intro to bio) explanation for diversification of species comes from multicellular, usually sexually reproducing organisms, and seems to be closely tied to the biological ...
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1answer
107 views

Horizontal gene transfer from humans

It is known that some viruses embed themselves in the human genome. Is there a mechanism by which human genes can be transferred to other animals or plants by means of viruses shuttling them from ...
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1answer
31 views

A trivial question on the meaning of “relatives” in an article on horizontal gene transfer

Am I right in suggesting that by close relatives the author meant closely related species, or did he have individual organisms in mind? DETECTION OF HORIZONTAL GENE TRANSFER There are ...
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Virus affecting eukaryote and prokaryote

I learned that viruses can affect a wide range of species, leading to horizontal gene transfer between them. This lead me to winder whether viruses can affect both a prokaryote and a eukaryote. I know ...
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1answer
64 views

Virus-to-virus gene transfer via “sequences integrated into a common host organism”

From "Risks from GMOs due to Horizontal Gene Transfer", by Paul Keese: In addition to direct HGT between organisms as depicted in Figure 1, forms of indirect HGT have been observed, which involve ...
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62 views

Drosophila biarmipes gene annotation, transposable element?

When doing an annotation of a contig31 of Drosophila biarmipes genome, the gene predictions(in orange, red, green, tan, blue, brown, and gray) picked up numerous possible genes in the area circled in ...
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1answer
74 views

Horizontal Gene Transfer

I understand the different ways bacteria can undergo horizontal gene transfer (transformation, transduction (phages), conjugation (plasmids)). Is there an experimental method to tell how a specific ...
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2answers
60 views

Multicellular organisms as DNA banks

Animal -> bacterial gene transfer seems easier than bacteria -> animal (rotifers are an interesting exception); there are bacteria live in close contact to us but our germ-line cells are protected. ...
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1answer
192 views

Does conjugation support gene selection?

I have already posted this on chat but haven't got any response. A recent question on group selection stimulated me to ask this here. QUESTIONS: Why should bacteria conjugate? If we consider that a ...
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73 views

Can an organism obtaining a part of its genome via horizontal gene transfer be called a “hybrid”?

Wikipedia definition of "hybrid" offers many competing definitions. But most seem to be centered on sexual-reproduction gene transfer. Is there an official (in a textbook or widely accepted peer ...
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270 views

What advantage would the initial 'donor' in horizontal gene transfer by conjugation have received?

I am struggling to think why horizontal gene transfer between bacteria would have persisted during the course of evolution as surely it puts the 'donor' at a disadvantage? For example, consider a ...