2026-09-20T14:34:47.837230900Zhttps://opus.uleth.ca/server/oai/requestoai:opus.uleth.ca:10133/56472019-12-21T07:11:51Zcom_10133_3346com_10133_1com_10133_296col_10133_3347col_10133_298
ULethbridge OPUS Repository
supervisor
Schultz, Elizabeth
supervisor
Larsen, R. James
author
Cradduck, Michelle H. J.
author
University of Lethbridge. Faculty of Arts and Science
2019-12-20T18:37:02Z
2019-12-20T18:37:02Z
2019
https://hdl.handle.net/10133/5647
Wheat (Triticum aestivum L.) is either a spring or winter annual, completing its life cycle in one growing season. Perennial plants grow over multiple years, alternating between vegetative and reproductive phases. Perennial wheat would be a valuable innovation in agriculture with economic and environmental advantages. To develop perennial wheat, it is often crossed with a close perennial relative, wheatgrass (Thinopyrum spp.). However, these perennial wheat lines are only weakly perennial, generally dying before the second growing season. We hypothesize that perennial habit is dependent on cycling control between the vegetative and reproductive phases, involving altered gene expression and the development of sufficient cold hardiness to successfully overwinter. To test this hypothesis, expression of cold tolerance and flowering genes were examined and quantified in perennial wheat, annual wheat and wheatgrass lines grown under varying photoperiods and temperatures.
en_US
cold tolerance
flowering time
perennial life cycle
perennial plant genes
perennial wheat
Wheat--Genetics
Wheat--Flowering time
Wheat--Hybridization
Wheat--Breeding
Cold tolerant plants
Plant hybridization
Crop improvement
Dissertations, Academic
The influence of cold tolerance and flowering time genes on perennial wheat habit
Thesis
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URL
http://localhost:4000/bitstreams/de3a9343-2946-4202-8437-35cb115ce629/download
File
MD5
dd431732277131696849868b4394d8c1
14044387
application/pdf
CRADDUCK_MICHELLE_MSC_2019.pdf
URL
http://localhost:4000/bitstreams/3fd99cda-02bb-4092-aacf-193542757177/download
File
MD5
0597c21d582f037a154bdcf4b89efc83
363752
text/plain
CRADDUCK_MICHELLE_MSC_2019.pdf.txt