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Cultivation Science Lab (Kanno)
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The lab studies how male and female asparagus plants are determined and applies the findings to variety breeding.

AboutAbout the lab
From the mystery of asparagus sex to new varieties
Prof. Kanno studies, at the molecular level, the mechanism that determines whether an asparagus plant is male or female.
The lab's work ranges from this basic research to applied research, such as developing markers that distinguish male from female plants and breeding varieties consisting only of male plants.
The lab also crosses asparagus with wild relatives that are resistant to disease and tolerant of salt, in order to breed new varieties.
Key terms
- Sex type
- The trait of whether an individual is male or female. Asparagus has separate male and female plants (it is dioecious).
- DNA marker
- A DNA landmark linked to a trait of interest. It makes it possible to identify, early on, traits that cannot be seen from appearance.
- Closely related species
- Different species that belong to the same group and have similar characteristics. Here, it refers to wild relatives of asparagus.
ResearchResearch themes
The lab conducts basic research on the mechanism that determines sex in asparagus, as well as applied research that leads to the breeding of new varieties. It also aims to bring useful traits of wild relatives into new varieties.
*Illustrative imageHow male and female asparagus plants are determined
The lab's work ranges from basic research on the molecular mechanism that determines sex in asparagus to applied research, such as developing markers that distinguish male from female plants and breeding varieties consisting only of male plants.
*Illustrative imageBreeding new varieties by crossing with related species
The lab crosses asparagus with wild relatives, including species with resistance to disease or tolerance of salt and species containing functional or medicinal compounds, to breed new varieties.
MembersFaculty
- ProfessorAkira Kanno
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Asparagus field Drzymalowo kz01” Krzysztof Ziarnek, Kenraiz / CC BY-SA 4.0 (cropped)
- How male and female asparagus plants are determined: “Asparagus officinalis Muromets2” Аимаина хикари / CC0 (cropped)
- Breeding new varieties by crossing with related species: “Asparagus officinalis – Transylvania 1” DenesFeri / CC BY-SA 4.0 (cropped)
- Related lab (Crop Science Lab (Fukano)): “Wildflowers and farmland near Bromfield - geograph.org.uk - 7566334” Mat Fascione / CC BY-SA 2.0 (cropped)
- Related lab (Space Horticulture Lab): “Genetically modified, extemely dwarf tomato plants grow aboard the International Space Station (iss073e0031528)” NASA Johnson Space Center / Public domain (cropped)
- Related lab (Soil Science Lab): “Field soil sampling” Prof. Dr. Alessandro Samuel-rosa / CC0 (cropped)
- Related lab (Agricultural Food Engineering Lab): “So they are pulled into the factory on a conveyor belt ( )” Paul Narvaez from Los Angeles, USA / CC BY 2.0 (cropped)
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