Artificial selection for genetic adaptation to temperature extremes in Aphytis lingnanensis Compere (Hymenoptera: Aphelinidae)

White, E; DeBach, P; Garber, M

Artificial selection for genetic adaptation to temperature extremes in Aphytis lingnanensis Compere (Hymenoptera: Aphelinidae)

Authors

Ernest B. White
Paul DeBach
Morris J. Garber

Authors Affiliations

Ernest B. White was a former Laboratory Technician IV, Department of Biological Control, Citrus Research Center and Agricultural Experiment Station, Riverside; Paul DeBach was Professor of Biological Control, Department of Biological Control, Citrus Research Center and Agricultural Experiment Station, Riverside; Morris J. Garber was Professor of Biostatistics and Biometrician in the College of Biological and Agricultural Sciences, Riverside.

Publication Information

Hilgardia 40(6):161-192. DOI:10.3733/hilg.v40n06p161. May 1970.

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Abstract

Artificial selection was applied to several lines of Aphytis lingnanensis Compere (Aphelinidae) for more than 100 generations in an attempt to enhance tolerance to climatic extremes. Significant results included: (1) improved tolerance to temperature extremes as a result of selection; (2) irradiation failed to contribute measureably to enhanced tolerance; (3) the temperature tolerance was apparently well fixed genetically; and (4) general hardiness as indicated by adult longevity was improved coincidentally.

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