[ek_hornbeck]

There’s a lot of variation among and within dog breeds when it comes to being friendly and sociable. Some breeds are more aloof - and there’s a good chance that the gene described in the study may account for some of the differences.

[CottonBall]

Yorkies must must be missing those genes in spades. Although mine is really smart as well as friendly. But I haven’t noticed any affinity for music. Other than sirens :-)

[Mr Ramsbotham]

Some breeds are more aloof - and there’s a good chance that the gene described in the study may account for some of the differences.

Something has to account for the differences. Although I'm not sure it's "a" gene ... probably a combination of traits.