TITLE:
An Alternative Analysis on Nilsson-Ehle’s Hybridization Experiment in Wheat —Theory of Dual Multiple Factors and Three Normal Distributions on Quantitative Inheritance (Continuation)
AUTHORS:
Tingzhen Zhang, Xiaoming Jia, Zhao Xu
KEYWORDS:
Wheat Hybridization, 3 Gene Pairs, Additive Effect, Grain Color, Pericarp Inheritance, Delayed Inheritance, Discrete Distribution
JOURNAL NAME:
Applied Mathematics,
Vol.9 No.8,
August
30,
2018
ABSTRACT:
In this paper, an analysis on Nilsson-Ehle’s hybridization experiment in
wheat was done by means of self-fertilization method along with the pericarp
inheritance. It showed that because seeds of wheat were coated with 2n tissues
of mother’s body, the grain colors were determined by mother’s genotype.
The color of the F1 grains in this experiment was old red. The phenotypes of
the F2 grains were uniformly medium red and did not segregate. Grains in the
F3 generation segregated in the ratio 6 red (varying intensities of red) to 1
white with a definite probability respectively. This is the consequence of additive
effect of 3 gene pairs and belongs to discrete distribution rather than continuous
distribution. Therefore, the multiple-gene hypothesis based on this
experiment cannot solve the continuous variations in inheritance of quantitative
characters.