Inter-Population Maize Improvement in the F(2) and in the Bc(1) Following Elite Line by Broadbase Population Crosses (Linkage, Intra-Population Parameters)

Estimates of genetic parameters from 3 x 3 Design II analyses, pooled over 32 sets and evaluated at two locations, of crosses among random F(,2)S(,1) lines of B73 x B Comp. with random F(,2)S(,1) lines of Mo17H x A Comp. and among random BC(,1)S(,1) lines (backcrossed to the inbreds) of the two backgrounds were used to compare expected inter-population cross improvement from reciprocal recurrent selection (S(,1)RRS) and from fullsib RRS (S(,1)FSRRS) based on S(,1) testcross performance initiated in the F(,2)'s and in the BC(,1)'s for agronomically important traits. Because the F(,2)'s and the BC(,1)'s were not random mated, expectations of the estimated genetic parameters were derived algebraically. Effects of linkage in the inbreds, initial disequilibrium in the composites, and epistasis on these parameters were investigated using a two-locus model.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Agronomy

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2014

Author dc:creator

• Meghji, Moezali Rajabali

• Biology, Genetics

Identifier

(UMI)AAI8502243

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/71605