Related Experiment Video
Updated: May 3, 2026

Non-radioactive in situ Hybridization Protocol Applicable for Norway Spruce and a Range of Plant Species
Published on: April 17, 2009
Some data on the polygenic control of two quantitative traits in a vegetatively propagated flower plant, the
A Alpi1, M Buiatti, S Baroncelli
1Department of Horticulture and Department of Genetics, University of Pisa, Pisa, Italy.
Abstract:
In two populations of selfed commercial varieties 4800 and 5774 ofDianthus cariophyllus as well as in the parents of 5774 two quantitative traits were examined: petal number and durability of blossoms after cutting. Both populations showed an increase in the number of petals, No. 4800 also in its durability. The estimated hereditary component was high for petals (0.47 and 0.35), lower but significant for lasting quality. The importance of an investigation on the selection for quantitative traits in cut flowers is discussed.
More Related Videos
Related Concept Videos
Incomplete Dominance
Polygenic Traits
Polygenic Traits
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...
Chi-square Analysis
The chi-square test was developed by Pearson in 1990.
The first step of performing a Chi-square analysis is to establish a null hypothesis, which assumes that there is no real...
Dihybrid Crosses

