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Dihybrid Crosses

Dihybrid Crosses

Dihybrid Crosses

Dihybrid Crosses

Trihybrid Crosses

Trihybrid Crosses

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...

Monohybrid Crosses

Monohybrid Crosses

Monohybrid Crosses

Monohybrid Crosses

Plant Breeding and Biotechnology

Plant Breeding and Biotechnology

Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.

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Related Experiment Video

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Methods for Performing Crosses in Setaria viridis, a New Model System for the Grasses

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Producing yam (Dioscorea) seeds through controlled crosses.

Hodeba D Mignouna¹, Mathew M Abang, Robert Asiedu

¹African Agricultural Technology Foundation, Nairobi, Kenya.

Cold Spring Harbor Protocols

|February 13, 2010

Summary

This summary is machine-generated.

This protocol details controlled pollination for producing yam (Dioscorea) seeds. It enables the creation of hybrid seeds with known parentage for genetic research and crop improvement.

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Area of Science:

Agricultural Science
Plant Breeding
Genetics

Background:

Yam (Dioscorea) is a vital food crop, but natural pollination is inefficient.
Controlled breeding is essential for genetic improvement and developing new varieties.

Purpose of the Study:

To establish a reliable protocol for controlled pollination in yam.
To produce hybrid yam seeds of known parentage.

Main Methods:

Controlled pollination of flowers on female yam plants.
Utilizing specific genotypes for targeted cross-pollination.

Main Results:

Successful production of yam seeds through controlled pollination.
Obtained hybrid seeds with documented parentage.

Conclusions:

The protocol provides an efficient method for yam seed production.
Facilitates genetic studies and accelerates yam breeding programs.