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In a population of tomato plants mean fruit weight is 60 g and narrow-sense heritability (or realized heritability - h2) is 0.3. Predict the results of artificial selection (the mean weight of the progeny) if tomato plants whose fruit averaged 80 g were selected from the original population and interbred.

Respuesta :

Answer:

The mean weight of the progeny is [tex]66[/tex] grams

Explanation:

Given -

Mean fruit weight of tomato plant (M1) [tex]= 60[/tex] g

Narrow sense heritability (h2) [tex]= 0.3[/tex] g

Mean weight of tomato plant selected for artificial selection (M0) [tex]= 80[/tex] g

[tex]h_2 = \frac{M_2 - M_1}{M_0 - M_1}[/tex]

Substituting the given values in above equation, we get -

[tex]0.3 = \frac{M_2 - 60}{80 -60} \\0.3 = \frac{M_2 -60}{20} \\6 = M_2 -60\\M_2 = 6 + 60\\M_2 = 66[/tex]

The mean weight of the progeny is [tex]66[/tex] grams

The results of artificial selection (the mean weight of the progeny) if tomato plants whose fruit averaged 80 g were selected from the original population and interbred is 66.

What is the progeny?

Progeny means "offspring" or "children." You and your brothers are the progeny of your parents, and your cat's new clutter of kittens is her progeny.

Given -

  1. Mean fruit weight of tomato plant (M1) = 60 g
  2. Narrow feel heritability (h2)=0.3g
  3. Mean weight of tomato plant decided on for synthetic selection (MO) = 80g
  4. h_ = (Mx M_)/(MxM_)
  5. Substituting the given values in above equation, we get - 0.3= (M_ - 60)/(80 - 60
  6. 0.3= (M_ - 60)/20
  7. 6 = M_ - 60
  8. M_ = 6 + 60 M_ = 66
  9. The suggest weight of the progeny is 66 gram.

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