Compute F-statistics and infer genetic differentiation. Flower color of desert snow (Linanthus parryae) is controlled by one locus with two alleles (P and W, for pink and white, respectively). A river divides the area into two regions. Three subpopulations (Demes) were sampled from each region, with genotype frequencies shown by Region and Deme in
Compute F-statistics and infer genetic differentiation. Flower color of desert snow (Linanthus parryae) is controlled by one locus with two alleles (P and W, for pink and white, respectively). A river divides the area into two regions. Three subpopulations (Demes) were sampled from each region, with genotype frequencies shown by Region and Deme in
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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4. Compute F-statistics and infer genetic differentiation. | ||||
Flower color of desert snow (Linanthus parryae) is controlled by one locus with two alleles (P and W, for | ||||
pink and white, respectively). A river divides the area into two regions. Three subpopulations (Demes) were | ||||
sampled from each region, with genotype frequencies shown by Region and Deme in the table below. | ||||

Transcribed Image Text:4. Compute F-statistics and infer genetic differentiation.
Flower color of desert snow (Linanthus parryae) is controlled by one locus with two alleles (P and W, for
pink and white, respectively). A river divides the area into two regions. Three subpopulations (Demes) were
sampled from each region, with genotype frequencies shown by Region and Deme in the table below.
Compute F_IS, F_SR, F_RT and F_IT, and answer the questions based on your results.
E(P_PW) expected PW genotype frequency, p_Deme: allele frequency of the P allele in a deme. _S' and '_R'
indicates subscripted subpopulation and region, respectively.
Region
Deme
PP
PW
p_Deme
Е(P_PW)
1
1
0.690529 0.280903
0.028567469
2 0.614506 0.338797 0.046697284
1
3
0.667076 0.299342 0.033581501
2
4 0.020771 0.246703
0.732525756
2
5 0.012541 0.198894 0.788565086
2
6.
0.02087 0.247188 0.731941902
H_I
H_S
H_R
H_T
F_IS
F_SR
F_RT
F_ST
F_IT
Is there much inbreeding within each deme (Yes/No)?
Answer:
Most of genetic differentiation is observed
1. between demes within each region.
2. between the two regions.
Choose either 1 or 2:
Answer:
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