Related Experiment Video
Updated: May 6, 2026

Identification of the Genes Involved in Stomatal Development via Epidermal Phenotype Scoring
Published on: January 20, 2023
Heritability estimates for callus growth and regeneration in desmodium
P A Krottje1, D S Wofford, K H Quesenberry
1Agronomy Department, University of Florida, 2183 McCarty Hall, P.O. Box 110300, 32611-0300, Gainesville, FL, USA.
Abstract:
The F2 and F3 generations of two crosses (6123×13083 and 6123×144, with 6123 the regenerating parent) were evaluated for callus growth and regeneration capacity. Based on joint scaling tests and variance partitioning, neither callus growth nor regeneration fitted a simple additive-dominant genetic model. Heritability estimates obtained from parent-offspring regression analyses ranged from 0.65 to 0.77 for callus growth and from 0.19 to 0.46 for regeneration, with the range in both influenced by the cross and numerical scale employed. Members of two F3 families exhibited much more vigorous and prolific regeneration than the regenerating parental genotype. Because many individuals in the segregating generations showed no evidence of regeneration, population distributions for this trait were severely truncated, or censored. Regression-order analysis was used to estimate means and variances of these censored populations. The association between poor callus growth and high regeneration capacity observed in the parental lines was absent from the F2 and F3 generations, indicating that no association between callus growth and regeneration was present.
More Related Videos
07:19Asymbiotic Germination and Leaf Explant-Based Regeneration of the Endangered Medicinal Orchid Hemipilia cucullata from Mature Seeds
Published on: September 19, 2025
07:03Reliable Method for Assessing Seed Germination, Dormancy, and Mortality under Field Conditions
Published on: November 6, 2016
Related Concept Videos
Overview of Regeneration and Repair
Regeneration
All animals have varying degrees of...
Primary and Secondary Growth in Roots and Shoots
Asexual Reproduction
Meristems and Plant Growth
Morphogenesis