After reading this article you will learn about the gene and its role in population. Genetically defined, a genetic population is a spatial-temporal group of conspecific interbreeding individuals. All genetic information distributed among an interbreeding group of individuals collectively form a gene pool. The gene pool concept is best represented by small isolated colonies whose members can interbreed in a [...]
After reading this article we will learn about the estimation of additive and dominance variance. Additive (D) and dominance (H) genetic variances are easily computed with the help of following formulae. In some nomenclatures additive variance is denoted by A and dominance by H. where, V = Variance, ½ D = additive genetic variance, 1/4H = dominance variance, and VE [...]
The concept of combining ability was developed by G.F. Sprague and L.A. Tatum in 1942. The average or overall performance of a line in a series of crosses is known as general combining ability (gca) and the deviation in the performance of a particular cross than what would be expected based on the gca effects of the lines involved is [...]