Using clonal replicates to explore genetic variation in a perennial plant species |
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Authors: | G. S. Foster D. V. Shaw |
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Affiliation: | (1) International Forest Seed Company, P.O.Box 290, 35120 Odenville, AL, USA;(2) Department of Pomology, University of California, 95616 Davis, CA, USA |
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Abstract: | Summary An experimental design is presented for estimating genetic parameters using a family structure with clonally replicated individuals. This experimental design provides a technique to quantify genetic variation in a population, with partial separation of additive, dominance and epistatic gene action. Our method is offered as an alternative to techniques for estimating epistatic gene action that require several generations and/or inbreeding. Such methods are not particularly useful for long-lived perennials with long generation cycles. An example of the analysis is given with a forest tree species, Populus deltoides Bartr., and parameter estimates are presented for traits measured over 8 years. |
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Keywords: | Additive genetic variance Dominance genetic variance Epistatic genetic variance Eastern cottonwood |
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