This type of experiment, where members of an outbred populations are introduced to an inbred population as mating partners, is sometimes called a “genetic rescue”. How might measuring the average heterozygosity at a number of loci in the Swedish snake population allow you to test whether the introduced snakes had actually bred successfully with the inbred Swedish snakes?

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Author:Elaine N. Marieb, Katja N. Hoehn
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This type of experiment, where members of an outbred populations are introduced to an inbred population as mating partners, is sometimes called a “genetic rescue”. How might measuring the average heterozygosity at a number of loci in the Swedish snake population allow you to test whether the introduced snakes had actually bred successfully with the inbred Swedish snakes?

35
30
25
All snakes
20 males from outside
oopulations were
introduced into the
inbred Swedish
population in 1992.
15
10
New juveniles
5
1981 1983 1985 1987 1989 1991 1993 1995 1997 1999
Year
The introduced males
were removed in 1996.
EVOLUTION de, Figure 7.15
O2017 Sinauer kiwociates, Inc.
20
LO
Number of snakes
Transcribed Image Text:35 30 25 All snakes 20 males from outside oopulations were introduced into the inbred Swedish population in 1992. 15 10 New juveniles 5 1981 1983 1985 1987 1989 1991 1993 1995 1997 1999 Year The introduced males were removed in 1996. EVOLUTION de, Figure 7.15 O2017 Sinauer kiwociates, Inc. 20 LO Number of snakes
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