Review Questions

6.1. Figure 6.16 is a picture of a microsatellite gel showing the genotypes of a chick, her mother and six different males from the population, any of which could be the chick's biological father. Does exclusion analysis allow you to identify the father?


Mother Male 1

Male 2

Male 3

Male 4 Male 5 Male 6


Locus 2

Locus 1



6.2. Would you expect males and females to have a similar variation in reproductive success in a population that followed a polyandrous mating system? Why or why not?

6.3. Use the following microsatellite genotypes to calculate the relatedness between a female black-tailed prairie dog (focal individual) and the male that she has chosen to mate with:

Female Male genotype genotype

Locus 1 162, 162 162, 168 Locus 2 124, 124 124, 126

The population allele frequencies are 0.45 for allele 162, 0.25 for allele 168, 0.50 for allele 124 and 0.15 for allele 126.

6.4. Would you expect conflict over sex allocation between queens and workers to be of a similar intensity in monogynous and polygynous colonies? Why or why not?

6.5. Do the following data suggest male-biased disperal, female-biased dispersal or neither?

(i) River otters: FST calculated from nine microsatellites was 0.064 for males and 0.131 for females (Blundell et al., 2002).

(ii) Eastern grey kangaroos: gene flow (Nem) among populations, determined from the average genetic differentiation, was 22.61 for nuclear data and 2.73 for mitochondrial data (Zenger, Eldridge and Cooper, 2003).

(iii) The corrected assignment indexes (AIc) for red-billed queleas was —0.0121 for males and 0.0242 for females (Dallimer et al., 2002).

(iv) The local relatedness values of the Lake Tanganyika cichlid Eretmodus cyanos-tictus ranged from —0.094 to 0.013 for males and from —0.0041 to —0.177 for females (Taylor et al., 2003).

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