Genetic Architecture of Ear Fasciation in Maize (Zea mays) under QTL Scrutiny.

ABSTRACT:

Maize ear fasciation

Knowledge of the genes affecting maize ear inflorescence may lead to better grain yield modeling. Maize ear fasciation, defined as abnormal flattened ears with high kernel row number, is a quantitative trait widely present in Portuguese maize landraces.

Material and methods

Using a segregating population derived from an ear fasciation contrasting cross (consisting of 149 F2:3 families) we established a two location field trial using a complete randomized block design. Correlations and heritabilities for several ear fasciation-related traits and yield were determined. Quantitative Trait Loci (QTL) involved in the inheritance of those traits were identified and candidate genes for these QTL proposed.

Results and discussion

Ear fasciation broad-sense

SUBMITTER: Mendes-Moreira P 

PROVIDER: S-EPMC4414412 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature