'Transsexuality gene' ?

This article in the New Scientist may have important ramifications for some areas of debate about gender, 'Transsexuality gene' boosts male hormones: "A gene variant has been identified that appears to be associated with female-to-male transsexuality ... While such complex behaviour is likely the result of multiple genes, environmental and cultural factors, the researchers say the discovery suggests that transsexuality does have a genetic component.". I do hope the accumulation of this kind of evidence helps to decouple (if you'll pardon the expression) transgenderedness from other gender issues. It is becoming quite clear that this is a condition with roots in pre-birth hormone effects on the brain, our moral responses really do need to start from that point.