Comparative genomics of resistance of spruce to the white pine weevil in British Columbia

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Graphical interpretation regarding the ordinal logistic regression for cross-type to explain egg puncture occurrence (E00).

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Mating design representing 42 controlled crosses (families) used in this study.

Mating design representing 42 controlled crosses (families) used in this study.</p

Graphical interpretation regarding the ordinal logistic regression for origin of mother to explain attack severity (A00).

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Phenotypic distributions of attack severity and egg puncture occurrences and their significance according to parental origins.

A) The distribution of attack severity (A00, upper row) and egg punctures occurrences (E00, lower row) in the Interior spruce progenies (42 families) according to elevation at mother origin (left column) or at father origin (right column) is shown. These 42 controlled crosses were generated by mating resistant with resistant, resistant with susceptible, and susceptible with susceptible parents. The ranking in terms of weevil resistance of the individual Interior spruce parents is known and was done previously [13]. Attack severity increases from 0 to class 2. Egg puncture occurrence increases from 0 to class 5. The evaluation of attack severity and of egg puncture occurrence was done following artificial weevil infestation of the spruce resistance trial. B) Statistical significance of mother/father origin on attack severity and egg puncture occurrence is obtained from ordinal logistic regression. S.E. represents the standard error and R2 the proportion of total variance explained by the model as pseudo R2.</p

Graphical interpretation regarding the ordinal logistic regression for cross-type to explain attack severity (A00).

(JPEG)</p

Graphical interpretation regarding the ordinal logistic regression for origin of father to explain attack severity (A00).

(JPEG)</p

Graphical interpretation regarding the ordinal logistic regression for origin of father to explain egg puncture occurrence (E00).

(JPEG)</p