1. A way to look at inheritance patterns over many generations
Pedigree Analysis
A way to look at inheritance patterns over many generations

2. What is a Pedigree?

3. In addition to family history, pedigrees can show
Presence of disease

4. Pedigree Symbols

5. Inheritance Patterns shown on Pedigrees
Dominant-shows up in every generation
Recessive-can skip a generation
Sex-linked-seen more often in males than females.

6. Inheritance Patterns

7. Use of Pedigrees Study disease in a family.
Used to determine relationships between animals for captive breeding programs.
Today--you will use pedigrees to understand how two diseases are inherited

8. Designing a captive breeding programs for elephants at the zoo!
Use of Pedigrees
Designing a captive breeding programs for elephants at the zoo!

9. Asiatic vs. African elephants

10. Information on Asiatic Elephants
Elephas maximus
Range: India and Southeast Asia
Some have tusks others do not
Live in female led groups of 6-7 elephants
Litter size: 1 calf

11. Endangered Species IUCN Red List-- Problem: poaching
status: Endangered, which means in danger of becoming extinct
Other categories: stable, vulnerable, threatened, endangered, extinct
Problem: poaching

12. Captive Breeding
Mating endangered species in captivity to increase their populations and eventually release into the wild.

13. Problems with captive breeding
Inbreeding: breeding of close relatives decreases the viability of offspring (less offspring live).
Relatives may carry lethal recessive genes.

14. Questions we will answer…
How would a pedigree help to support a well-constructed captive breeding program for Asiatic Elephants?
You will look at actual data from zoos to draw some conclusions for your program!

15. Inheritance of Tusks If no tusks is filled in…
What is the Phenotype of I-2
What is the genotype of II-2?
Make a Punnett Square to show the mating of III-3 and III-4

16. Mating…
Mating close relatives increases the chance of passing down recessive lethal alleles, which elephants would we want to mate?
Use the table provided, that shows actual Asian elephants at zoos in the US

17. Zoo News Zoo New England Roger Williams Zoo
Northern Red Bellied Turtle
Roger Williams Zoo
Red wolf recovery program
Zoos are not just for us to look at animals.
Many zoos have active breeding programs and species conservation.