Saving the CaliforniaCondor
Amy WelshJed DoellingEmily LillySarah JoswayRandy PhyllisStephanie Young
Goals• Apply Mendelian genetics
and pedigree analysis to modern problems
Outcomes• Use information from
pedigree analysis to design optimal breeding pairs for the California Condor
California Condors
• Critically endangered• 22 individuals• Captive breeding
program• Some mating pairs
frequently produced non-hatching eggs o Chondrodystrophy
Lethal disorder
Genetics Review for Pedigree Analysis
A Amut
A AA AAmut
Amut AmutA AmutAmut
Gamete from mother
Gam
ete
from
fath
er
Pedigree Analysis
FemaleAffected femaleMaleAffected male
Is this trait inherited as
1) Dominant2) Recessive
http://highered.mcgraw-hill.com/
A
B
C
FemaleAffected femaleMaleAffected maleDead affected male/
What is the genotype of individual A
1) Homozygous dominant2) Homozygous recessive3) Heterozygous4) Too little information
http://highered.mcgraw-hill.com/
A
B
C
FemaleAffected femaleMaleAffected maleDead affected male/
Which individual is LEAST likely to carry the mutant allele?
http://highered.mcgraw-hill.com/
1
2
3
4
FemaleAffected femaleMaleAffected maleDead affected male/
Create a breeding plan for your subpopulations
• What is your best mating pair?• What is your worst mating pair?
California Condor: You’re the Zoo!11
49
21
2 7
50
40393130 2524
12 3
44
8 4
27 23
6
62
10
32
57
/
FemaleAffected femaleMaleAffected maleDead affected male/
Create a breeding plan for your subpopulations
• What is your best mating pair?• What is your worst mating pair?
California Condor: You’re the Zoo!11
49
21
2 7
50
40393130 2524
12 3
44
8 4
27 23
6
62
10
32
57
/
FemaleAffected femaleMaleAffected maleDead affected male/
Yellow Zoo
Create a breeding plan for your subpopulations
• What is your best mating pair?• What is your worst mating pair?
11
49
21
2 7
50
40393130 2524
12 3
44
8 4
27 23
6
62
10
32
57
/
FemaleAffected femaleMaleAffected maleDead affected male/
Blue Zoo
Create a breeding plan for your subpopulations
• What is your best mating pair?• What is your worst mating pair?
11
49
21
2 7
50
40393130 2524
12 3
44
8 4
27 23
6
62
10
32
57
/
FemaleAffected femaleMaleAffected maleDead affected male/
Orange Zoo
Create a breeding plan for your subpopulations
• What is your best mating pair?• What is your worst mating pair?
11
49
21
2 7
50
40393130 2524
12 3
44
8 4
27 23
6
62
10
32
57
/
FemaleAffected femaleMaleAffected maleDead affected male/
Red Zoo
Create a breeding plan for your subpopulations
• What is your best mating pair?• What is your worst mating pair?
Green Zoo11
49
21
2 7
50
40393130 2524
12 3
44
8 4
27 23
6
62
10
32
57
/
FemaleAffected femaleMaleAffected maleDead affected male/
California Condors: Success Story
• As of March 2011, total population is 369 birds
• Frequency of lethal allele is down to 8.8% from 20%
ReferencesRalls, K., J.D. Ballou, B.A. Rideout, and R. Frankham. 2000. “Genetic management of
chondrodystrophy in California condors.” Animal Conservation 3 (02): 145–153.
Images:
http://birdsflight.com/california-condor-facts-where-california-condors-live-what-california-condors-eat/
http://www.markbeeson.com/.a/6a00e5500bca2488340112791a521128a4-800wi
http://gallery.usgs.gov/photos/02_24_2010_y17Gxk3WVq_02_24_2010_1#.T9I7PuJYvBQ
Recommended
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