QTL Associated with Maize Kernel Oil, Protein, and Starch Concentrations; Kernel Mass; and Grain Yield in Illinois High Oil x B73 Backcross-Derived Lines

Illinois long-term selection strains of maize (Zea mays L.) have been useful for identifying genomic regions controlling kernel oil, protein, and starch concentrations. To identify kernel trait quantitative trait loci (QTL) in a genetic background more relevant to practical breeding, 150 BC1-derived...

Full description

Saved in:
Bibliographic Details
Published in:Crop science 2008-01, Vol.48 (1), p.243-252
Main Authors: Wassom, J.J, Wong, J.C, Martinez, E, King, J.J, DeBaene, J, Hotchkiss, J.R, Mikkilineni, V, Bohn, M.O, Rocheford, T.R
Format: Article
Language:English
Subjects:
breeding lines
carbohydrate content
chromosome mapping
corn
corn oil
corn protein
corn starch
genetic markers
germplasm
grain yield
kernel mass
phenotypic variation
protein content
quantitative trait loci
regression analysis
seed productivity
Zea mays
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Illinois long-term selection strains of maize (Zea mays L.) have been useful for identifying genomic regions controlling kernel oil, protein, and starch concentrations. To identify kernel trait quantitative trait loci (QTL) in a genetic background more relevant to practical breeding, 150 BC1-derived S1 lines (BC1S1s) were produced from Illinois High Oil and recurrent parent B73. Oil, protein, and starch were measured in BC1S1s and in Mo17-topcross hybrids (TCs). Kernel mass of BC1S1s and grain yield of TCs were also determined. Starch was positively correlated with mass in BC1S1s (rp = 0.67**, α
ISSN:0011-183X
1435-0653
DOI:10.2135/cropsci2007.04.0205