Male and female genitals offer different environments for microbes
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Sexual partners transfer their distinctive genital microbiome with each other in sexual relationships, findings that may have effects on sexual attacks.
Brendan Chapman At the University of Murdoch in Perth, West of Australia and his colleagues gathered from two monogamous and heterosseual genitals. Researchers asked couples to abstain between two days and two weeks, and followed samples after sexual contact.
“We found that these genetic signatures of women can be perceived in men’s partners and vice versa, says Chapman. This change of a person’s “sexome”, as the team doubled, it can be useful in criminal research.
The amount of the transfer is from one pair of pairs to another, and the team also found that the use of condom cannot prevent the movement of the sexome movement to another partner. However, an important limit of results was that a sexome female changed during periods.
Chapman says, despite the long-term homogenization of mico-microbial couples, bacterial populations are clearly differentiated between sexes.
“The great benefit we have with penis and vaginal microbioms is due to the great difference in both environments, each time we see very different types of bacteria,” Chapman says. “For example, the penis is mainly a skin-shaped surface, so it reflects the similarities of the skin microbiome. We see the types of anaerobic bacteria in the penis in the vagina and aerobic types.”
Therefore, many of these bacteria cannot last in an unlimited environment, he says. “It’s like comparing the earth and sea animals. There are only those who live in one location or another if they are removed, but there are some happy and followed.”
After forming the transfer of bacteria during the relationship, the group is the hope of proving the only sexome of the individual, like fingerprint or DNA. “I think there is enough diversity and uniqueness within everyone’s sexome, but it still needs to be done a bit of work to prove a strong enough technique to meet the challenges of forensic science,” says Chapman.
If researchers are able to prove this, it can help sexual assault research, especially men do not ejaculate, have vasectomy or used a condom. “The genetic profiles of bacteria could be able to confirm or oppose propositions or testimonials in cases of alleged sexual assaults,” says Dennis McNevin Sydney, Australia at the University of Technology.
The standards of human DNA’s profiles will always be prioritized in such cases, because it has a high capacity to distinguish between individuals, but sexome may offer a useful alternative. “Bacterial genetic profiles one day completion of DNA evidence or may have sexual attacks in rare cases of DNA profiles available,” says McNevin.
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