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Your dog's ability to learn new tricks may be less a product
7aining (han of ther underlying *genetics
ch as
aral traits such
Among 101 dog *breeds, scientists found that certain behavioral
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2 S dog behaviors
breeds、 While past studies have looked into the genetic foundations of
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for certain breeds、thiS research published October 1 in *the /ァの
preeds and find a
な is the first to investigate a wide diversity of
netic signal
behavioral
aly。 everyone knows that different dogs have 中作erent
: の 7ashington in
~ says Noah Snyder-Mackler, a geneticist at the University of Washing
Ks の Sa *canines have lived
de "But we didnt know how much or why.” Humans and *canine
at least 15.000 years. But only within the last 300 years or so have
produced Yarieties such as Chihuahuas and Great Danes.
Snyder-Mackler and his colleagues considered how 101 dog breeds behave
while searching for genetic similarities among breeds sharing certain personality
graits. Data came from two dog genotype databases and from C-BARQ, a survey
好at asks owners to rank their pure-bred dog's "propensity for certain behaviors, hike
chasing or aggressiveness toward strangers. As a result the study didnt have
genetic and behavioral data from the same canine individuals, which could help
岳ghjjght rare genetic varjants that may be nonetheless important to diversity im
pehavjors.
“Tjeyre not perfect sources of data” says Clive Wynne, an animal behaviorist at
Arizona State Unjversity jn Tempe, who was not involved in the study. “But
allowed fhem to Jook at ots and lots of dogs.”
Using daa from over 14000 dogs described in C-BARQ, the researchers gave
each breed a score for 14 different behaviors, and then searched for overall genetic
simlarifies among breeds that had similar Scores. For traits such as aggression
foward sfrangers, franability and chasing, the researchers found that genes
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