Related Experiment Video
Updated: Jul 12, 2026

Confocal Microscopy Analysis of Protein Sorting to Plasmodesmata in Nicotiana benthamiana
Published on: November 1, 2024
Chromosomal Control of Preferential Pairing in Nicotiana
Abstract:
A stock of tobacco with 23 pairs of tobacco chromosomes and one substituted pair from Nicotiana glutinosa was available. An amphiploid of this tobacco with N. tomentosiformis was synthesized in order to test whether preferential pairing is determined by the homologies of the chromosomes or whether it is under genic control. Characteristically, segregates for duplex loci in N. tabacum x N. tomentosiformis amphiploids give a gametic output of about 3:1, but for a factor on the substituted chromosome that output was found to be 59:1. The result suggests that preferential pairing in this material is not genically determined.
More Related Videos
23:21Optimization and Utilization of Agrobacterium-mediated Transient Protein Production in Nicotiana
Published on: April 19, 2014
07:55Luciferase Complementation Imaging Assay in Nicotiana benthamiana Leaves for Transiently Determining Protein-protein Interaction Dynamics
Published on: November 20, 2017
Related Concept Videos
Position-effect Variegation
Frequency-dependent Selection
Incomplete Dominance
Cis-regulatory Sequences
Cis-regulatory Sequences
Combinatorial Gene Control
The expression of more than 30,000 genes is controlled by approximately 2000-3000 transcription factors. This is possible because a single transcription factor can recognize more than one regulatory sequence. The specificity in gene...