Biology Reference
In-Depth Information
1.00
g
h
j
c
a
i
j
b
f
f
i
c
b
d
h
e
a
e
g
d
0.93
d
h
i
c
g
f
e
j
b
h
i
j
a
g
g
h
i
j
g
f
h
i
j
e
f
f
d
e
e
c
d
d
b
c
c
b
a
0.86
b
r:
j=18
i=10
h=7
g=5
f=4
e=3.5
d=3
c=2.5
b=2
a=1.5
a
A
a
0.79
0
1
2
3
4
5
6
110
100
c
j
j
j
j
j
j
b
g
f
i
i
i
i
i
i
d
h
h
h
h
h
h
a
e
g
g
g
g
g
f
f
f
f
f
e
e
e
e
e
d
d
d
d
d
c
90
c
c
c
c
b
80
b
b
a
b
b
70
a
a
60
B
a
a
50
0
1
2
3
4
5
6
GENERATION
Fig. 10.7
Heterozygosity (A) and unique allele loss (B) is lower in more rapidly growing
populations under the conditions given in the text. r values for the different populations, which
have otherwise identical initial conditions, are indicated to the right of the graphs. Points for
the populations with higher r (f to j) overlap in alphabetical order with j being highest.
level of allelic retention after fi ve rounds of reproduction, a growth factor
of approximately 400-600 is needed, if the r value for the population is
more or less constant. Such NEWGARDEN assessments can be made for
different rounds of reproduction to predict the growth of the population
required to preserve a target percentage of the founding unique alleles,
or to estimate allelic retention history for populations expanding under
a wide variety of life history characteristics. Similar calculations could be
made for each generation to predict how alleles will be preserved under
different growth factors for any two consecutive generations. Deviations
from NEWGARDEN predictions suggest that other evolutionary forces
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