Do our bodies' bacteria play matchmaker?

I found this research fascinating and wondered if this could be why some yoga teachers while in training have relationship difficulties or breakups.  As you transform and move towards a healthier lifestyle and diet - if your partner does not follow along it could lead to the demise of the connection because of the bacteria colonizing the body from the types of food you eat!  Amazing - as you know - as an infection control nurse I love bugs!!  lol

ScienceDaily (2010-12-03) -- Could the bacteria that we carry in our bodies decide who we marry? According to a new study, the answer lies in the gut of a small fruit fly. Scientists recently demonstrated that the symbiotic bacteria inside a fruit fly greatly influence its choice of mates.http://www.sciencedaily.com/releases/2010/12/101202124211.htm

Conducting their experiments on the rapidly-reproducing fruit fly, the scientists were able to test this new theory. The first experiment repeated a study carried out two decades ago by a Yale University researcher, in which a fly population was divided in half and fed different diets -- malt sugar versus starch. A year later, when the flies were re-integrated as one group, those who had been fed starch preferred starch-fed mates, while the sugar-fed flies preferred mates of a similar nutritional background. The repeat experiment carried out by the Tel Aviv University researchers shows that this dietary influence takes effect within just a generation or two rather than over an entire year.

In their second experiment, the Tel Aviv University team repeated the first, but with the addition of an antibiotic, which killed the bacteria and eliminated the specific mate preference. The mating process became random, with no dietary influence.
In subsequent experiments, the researchers successfully isolated the bacterial species responsible for reproductive isolation in flies with diet-related mating preferences, and found the bacteria Lactobacillus plantarum to be present in greater numbers in starch-fed fruit flies than in sugar-fed flies. When L. plantarum was reintroduced into the antibiotic-treated flies, the preferential mating behavior resumed -- proving that this bacterial species is at least partly responsible for the mating preference.