Relative tillering ability, available spike, biomass, and grain yield of P1, P2, F1, and F2, 3 were used to study the genetic development of rice related to phosphorus efficiency with a quantitative genetic model.

The paper proposed a maximum likelihood method for the qualitative quantitative inheritance of endosperm traits,which included qualitative quantitative genetic model test,effect and variation estimation of major gene and polygenes. The analysing procedure was demonstrated with F 2 and F 3 endosperm generations and used to investigate the qualitative quantitative inheritance of amylose content(abbreviated to AC)in three indica rice crosses.

Based on the quantitative genetic model for endosperm traits, a new segregation analysis method for detecting major gene controlling endosperm traits was proposed, which includes major gene detection and its effect and variation estimation.

In contrast, a quantitative genetic model of the relationship between age and breeding value of fitness casts strong doubts on the mechanism.

This software maximizes the expected gain from selection in general combining ability by means of quantitative genetic model calculations.

Using a quantitative genetic model, conditions are derived for alliance behavior to be selectively advantageous.

A simple quantitative genetic model is proposed to explain the observed genetic correlation structure of a bruchid beetleCallosobruchus chinensis in terms of two underlying variables: the resource acquisition and the resource allocation.

A quantitative genetic model for growth, shape, reaction norms, and other infinite-dimensional characters

On the basis of the polygenic hypothesis, a quantitative genetic model of plant mutagenesis is proposed. It includes three basic hypothesis, from which gene and genotypic frequencies, mean, variance, genotypic and phenotypic distribution functions of the mutation generation population are derived. A clear definition of quantitative trait (QT) mutant and a formula for calculating mutation frequency of the QT are given. Discussion is made on some applications of the model, including the theoretical...

On the basis of the polygenic hypothesis, a quantitative genetic model of plant mutagenesis is proposed. It includes three basic hypothesis, from which gene and genotypic frequencies, mean, variance, genotypic and phenotypic distribution functions of the mutation generation population are derived. A clear definition of quantitative trait (QT) mutant and a formula for calculating mutation frequency of the QT are given. Discussion is made on some applications of the model, including the theoretical studies, genetic analyses and parameters' estimation in mutation breeding. Two practical examples are analysed with the model. The resuits indicate that the model could explain experimental phenomena well so that it could play a role of theoretical direction in mutation breeding. Lastly, the relationship between gene mutation rate and mutation probability and the application of the model in the analysis of multiple characters are discussed.

The paper proposed a maximum likelihood method for the qualitative quantitative inheritance of endosperm traits,which included qualitative quantitative genetic model test,effect and variation estimation of major gene and polygenes.The analysing procedure was demonstrated with F 2 and F 3 endosperm generations and used to investigate the qualitative quantitative inheritance of amylose content(abbreviated to AC)in three indica rice crosses.The results showed that AC is a typical endosperm qualitative...

The paper proposed a maximum likelihood method for the qualitative quantitative inheritance of endosperm traits,which included qualitative quantitative genetic model test,effect and variation estimation of major gene and polygenes.The analysing procedure was demonstrated with F 2 and F 3 endosperm generations and used to investigate the qualitative quantitative inheritance of amylose content(abbreviated to AC)in three indica rice crosses.The results showed that AC is a typical endosperm qualitative quantitative trait controlled by a major gene as well as polygenes.The major gene for high AC,low AC and waxy is a group of multialleles.The allele for high AC is approximately complete dominant to that for low AC and waxy.Genetic variation caused by polygenes is about from one quarter to one half of the genetic variation of the major gene in different crosses.

Quantitative genetics has been the intellectual cornerstone of breeding for close to 100 years. Likewise, the tools of modern quantitative genetics have been developed in four separate fields: animal breeding, plant breeding, human genetics, and evolutionary genetics. Unfortunately, for a variety of reasons, migration of information between these fields has not been what it should be. In the age of genomics, genomic information allows for an extended (neoclassical) framework that also incorporates...

Quantitative genetics has been the intellectual cornerstone of breeding for close to 100 years. Likewise, the tools of modern quantitative genetics have been developed in four separate fields: animal breeding, plant breeding, human genetics, and evolutionary genetics. Unfortunately, for a variety of reasons, migration of information between these fields has not been what it should be. In the age of genomics, genomic information allows for an extended (neoclassical) framework that also incorporates genetic marker information. Straightforward modifications of classical quantitative genetic models provide the natural framework for handling both phenotypic and genotypic information. Quantitative genetics will continue to play important role in the genetic analysis of quantitative traits and breeding. Thus, it is also an appropriate time to inquire whether useful tools have been developed in these other fields that may be helpful to animal breeders of today and the genomics-based breeders of the near future. Equally important for breeders to consider are powerful tools developed in other fields of quantitative genetics, only a few of which have been discussed here. Animal breeders will make it possible to analyze quantitative traits using a more accurate but more complicate genetic model if interdisciplinary efforts are successful.