Related Experiment Video
Updated: Oct 9, 2026

A Rapid and Efficient Method for Assessing Pathogenicity of Ustilago maydis on Maize and Teosinte Lines
Published on: January 4, 2014
Microsatellite repeat variation within the y1 gene of maize and teosinte
T L Phelps1, A E Hall, B Buckner
1Division of Science, Northeast Missouri State University, Kirksville 63501, USA.
Abstract:
We have sequenced a (CCA)n microsatellite-containing region of the y1 gene from 11 different lines of maize and 6 teosinte species, subspecies, or varieties. The (CCA)n microsatellite was found to vary in repeat number from 3 to 11. In addition, a pentanucleotide repeat adjacent to the trinucleotide microsatellite exhibits sequence and repeat number variation. Therefore, the (CCA)n microsatellite, as well as the sequence directly adjacent to it, exhibit variability in both maize and teosinte and could potentially serve as molecular markers in mapping or breeding studies.
Related Concept Videos
Monohybrid Crosses
Overview of Transposition and Recombination
Conservative Site-specific Recombination and Phase Variation
The recognition sites for Cre recombinase called LoxP...
Trihybrid Crosses
Some of Mendel’s crosses examined three pairs of contrasting characteristics. Such a cross is called a trihybrid cross. A trihybrid cross is a combination of three individual monohybrid crosses. For example, plant height (tall vs. short), seed shape (round vs. wrinkled), and seed color (yellow vs. green).
The F1 generation plants of a trihybrid cross are heterozygous for all three traits and produce eight gametes. Upon self-fertilization, these gametes have an equal chance to...

