Calculate the proportion polymorphic

Information demonstrate below are SNP genotypes of Guinea hogs from Kizzi Roberts’ research project. In each cell “1” codes for one homozygote (TT for example), “-1” for the other homozygote (AA for example), and “0” for a heterozygote (AT for example). A “u” means that the genotyping reaction failed and the data are missing.

a. Calculate the proportion polymorphic and average heterozygosity for the population.

b. The Identify the four pigs you would keep for breeding if you had the objective of maximizing genetic variation in the next generation and describe the criteria that you used for making selection decisions.

Pig    SNP:

A9

A14

A21

A22

A46

A47

A87

A112

A120

A131

A133

A134

A172

A188

A195

Wart Side Sow

-1

-1

1

1

1

-1

-1

1

-1

1

-1

1

-1

-1

-1

Old Stiff Boar

-1

-1

1

1

1

-1

-1

1

-1

1

-1

1

-1

-1

-1

Houdini

0

-1

0

1

0

0

0

0

-1

1

0

0

0

0

0

Seymour A

0

-1

0

1

1

-1

-1

0

0

1

-1

1

-1

-1

-1

Rose DNC

0

-1

1

1

1

-1

-1

1

-1

1

-1

1

-1

-1

-1

DNC Junior

-1

-1

0

1

1

-1

-1

0

0

1

-1

1

-1

-1

-1

Setty Lilly

-1

-1

1

1

1

-1

-1

1

-1

1

-1

1

-1

-1

-1

Seymour B

0

-1

0

1

1

-1

-1

0

0

1

-1

1

-1

-1

-1

Samson

1

-1

1

0

0

-1

-1

0

-1

1

0

1

-1

0

-1

Killian

-1

-1

1

1

1

-1

-1

1

-1

1

-1

1

-1

-1

-1

Barnett

0

-1

1

1

1

-1

-1

1

-1

1

-1

1

-1

-1

-1

 

 

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