We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Fine Mapping of a QTL Associated with Kernel Row Number on Chromosome 1 of Maize.
- Authors
Calderón, Claudia I.; Yandell, Brian S.; Doebley, John F.
- Abstract
The genetic factors underlying changes in ear morphology, and particularly the inheritance of kernel row number (KRN), have been broadly investigated in diverse mapping populations in maize (Zea mays L.). In this study, we mapped a region on the long arm of chromosome 1 containing a QTL for KRN. This work was performed using a set of ecombinant hromosome early sogenic ines (RCNILs) derived from a BC2S3 population produced using the inbred maize line W22 and teosinte (Zea mays ssp. parviglumis) as the parents. A set of 48 RCNILs was evaluated in the field during the summer of 2013 in order to perform the mapping. A QTL for KRN was found that explained approximately 51% of the phenotypic variance and had a 1.5-LOD confidence interval of 203 kb. Seven genes are described in this interval. One of these candidate genes may have been the target of domestication processes in maize and contributed to the shift from two kernel row ears in teosinte to a highly polystichous ear in maize.
- Subjects
CORN genome mapping; PLANT chromosomes; DOMESTICATION of plants; ZEA diploperennis; PLANT genes; CONFIDENCE intervals
- Publication
PLoS ONE, 2016, Vol 11, Issue 3, p1
- ISSN
1932-6203
- Publication type
Article
- DOI
10.1371/journal.pone.0150276