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Bread Wheat Microspore Culture
Hai Ying Yuan1, Alison M R Ferrie2
1Aquatic and Crop Resource Development Research Centre, National Research Council Canada, 110 Gymansium Pl, Saskatoon, SK, S7N 0W9, Canada. haiying.yuan@nrc-cnrc.gc.ca.
Methods in Molecular Biology (Clifton, N.J.)
|July 18, 2026
Summary
This study details a microspore culture protocol to accelerate bread wheat (Triticum aestivum L.) breeding. This method rapidly produces doubled haploid plants, crucial for developing resilient, high-yielding cultivars.
Area of Science:
- Plant breeding and genetics
- Agricultural science
- Horticultural science
Background:
- Doubled haploid (DH) production is vital for accelerating crop improvement.
- Bread wheat (Triticum aestivum L.) breeding requires efficient methods to develop new cultivars.
- Climate change and population growth necessitate faster development of resilient, high-yielding wheat varieties.
Purpose of the Study:
- To present a comprehensive protocol for bread wheat doubled haploid production via microspore culture.
- To detail key steps for efficient microspore-derived doubled haploid generation in Triticum aestivum L.
- To facilitate the rapid release of improved wheat cultivars.
Main Methods:
- Donor plant cultivation and spike pretreatment.
- Microspore isolation, purification using density gradients, and co-culture with ovaries.
- Embryo rescue, plantlet regeneration, ploidy determination, and chromosome doubling.
Main Results:
- A detailed, step-by-step protocol for microspore culture in bread wheat is provided.
- The protocol covers critical stages from microspore isolation to doubled haploid plant regeneration.
- Key parameters for successful embryo development and plantlet recovery are outlined.
Conclusions:
- Microspore culture offers an efficient pathway to produce doubled haploid bread wheat.
- This protocol can significantly expedite the breeding cycle for Triticum aestivum L.
- The described method supports the development of improved wheat cultivars to meet global food demands.
