Topic
Diallel cross
About: Diallel cross is a research topic. Over the lifetime, 4471 publications have been published within this topic receiving 61273 citations.
Papers published on a yearly basis
Papers
More filters
••
TL;DR: In this paper, a detailed examination of combining ability in relation to diallel crossing systems is made, and eight different analyses are presented, with two alternative assumptions with regard to the sampling nature of the experimental material.
Abstract: A detailed examination of the concept of combining ability in relation to diallel crossing systems is made. Eight different analyses aro presented. 'l'hese result from a consideration of four different diallel crossing systems together wit.h two alternative assumptions with regard to the sampling nature of tho experimental material. A numerical example is given.
3,856 citations
••
TL;DR: The purpose of this article is to study more general genetic systems using new methods and more generations and an investigation of gene correlation in the parents together with some consideration of linkage and parental heterozygosity.
Abstract: HE investigation of the properties of groups of homozygous lines by means T of diallel crosses as proposed by HULL (1945) has subsequently been discussed in growing detail in a series of papers by JINKS and HAYMAN (1953 and later). With certain assumptions, the genetic variation present can be described in terms of the biometrical concepts of MATHER (1949) and accurate estimates obtained of the additive, dominance and environmental components. The distribution of genes in the parents is also revealed. The important result of these papers is that the diallel table of results can be tested (by the uniformity of Wr-V,) for conformity to the biometrical model before applying the model to the description of the genetic variation present. The genetic systems controlling many characters do not fit this simple model and it is the purpose of this article to study more general genetic systems using new methods and more generations. This paper concerns parental, F, and F, data and contains an investigation of gene correlation in the parents together with some consideration of linkage and parental heterozygosity. Data from diallel crosses in maize and cotton will be discussed by kind permission of those who conducted the experiments. Reference to HAYMAN (1954b) is by section number prefixed by H.
1,126 citations
••
TL;DR: As an alternative to genetic interpretation, the statistical description provided by dialiel analysis can be used to help answer questions concerning the importance of specific combining ability and the predictability of hybrid performance using general combining ability or parental performance.
Abstract: Critical issues in the use of diallel analysis are reviewed. From a statistical point of view the critical issue concerns the choice of a model with fixed or random genotypic effects. From a genetical point of view, two assumptions are critical in attempts to interpret the resuits of diallel analyses. The assumption concerning the independent distribution of genees in the parents is most critical to proper interpretation and seems to be least acceptable in actual practice. The second assumption, that there is no epistasis, may frequently be incorrect. Epistasis affects estimates of general and specific combining ability mean squares, variances, and effects in an unpredictable manner. As an alternative to genetic interpretation, the statistical description provided by dialiel analysis can be used to help answer questions concerning the importance of specific combining ability and the predictability of hybrid performance using general combining ability or parental performance
790 citations
••
TL;DR: An analysis of variance is described which tests additive and dominance effects in diallel tables obtained from the progeny of a Diallel cross.
Abstract: A diallel cross is the set of n2 possible single crosses and selfs between n homozygous (inbred) lines; it provides a powerful method of investigating the relative genetical properties of these lines. A diallel table is a set of n2 measurements associated with a diallel cross, e.g. measurements from the progeny of a diallel cross, or from later generations obtained by selfing or backerossing these progeny. A summary of a method of describing the genetical situation generating a diallel table has already appeared (Jinks and Hayman, 1953) aild fuller accounts will appear in papers by Jinks and by Hayman. Here an analysis of variance is described which tests additive and dominance effects in diallel tables obtained from the progeny of a diallel cross.
727 citations