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A diallel cross is a mating scheme used by plant and animal breeders, as well as geneticists, to investigate the genetic underpinnings of quantitative traits.〔Hallauer, A. R. and J. B. Miranda Filho. 1988 Quantitative genetics in maize breeding. 2nd ed. Iowa State University Press, Ames, IO.〕 In a full diallel, all parents are crossed to make hybrids in all possible combinations. Variations include half diallels with and without parents, omitting reciprocal crosses. Full diallels require twice as many crosses and entries in experiments, but allow for testing for maternal and paternal effects. If such "reciprocal" effects are assumed to be negligible, then a half diallel without reciprocals can be effective. Common analysis methods utilize general linear models to identify heterotic groups,〔Griffing, B. 1956. Concept of general and specific combining ability in relation to diallel crossing systems. Australian Journal of Biological Sciences 9: 463-493〕 estimate general or specific combining ability,〔Gardner, C. O. and S. A. Eberhart. 1966. Analysis and interpretation of the variety cross diallel and related populations. Biometrics 22: 439-452〕〔Sprague G. F., and L. A. Tatum. 1942. General vs. specific combining ability in single crosses of corn. J. Am. Soc. Agron. 34: 923-932〕 interactions with testing environments and years, or estimates of additive, dominant, and epistatic genetic effects〔Hayman, B. I. 1954. The analysis of variance of diallel tables. Biometrics 10: 235-244〕 and genetic correlations. There are four main types of diallel mating design: # Full diallel in which parents and reciprocal crosses are involved along with F1 # Full diallel without inclusion of parents # Half diallel with parent and without reciprocal crosses # Half diallel without parents or reciprocal crosses == References == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Diallel cross」の詳細全文を読む スポンサード リンク
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