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Breeding Euphorbia lagascae for large-scale production of vernolic acid, an important industrial epoxidized ester

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dc.contributor.advisor Rajcan, Istvan Istaitieh, Maram 2021-09-15T16:14:11Z 2021-09-15T16:14:11Z 2021-09 2021-06-10
dc.description.abstract Euphorbia lagascae is grown because of vernolic acid, an epoxidized fatty acid that has multiple industrial uses. The objective of this thesis was to determine the genetic control of seed germination and seed shattering traits. Five different wild-type genotypes of E. lagascae that demonstrated high germination potential were crossed with an EMS mutant genotype that produces non-shattering capsules. The F2 populations were separated into three different treatments: light, GA3, and control. Consequently, the plants treated with around 250 µmol of light showed improvement in germination up to 75% in cross A and 82.4 % in cross B. The chi-square test indicated that the expression of seed germination, when treated with light, is simply inherited as 3:1 segregation ratio for germinated vs. not germinated seeds, indicating of a single gene with dominance gene action. The same conclusion was reached when phenotyping for the shattering trait for the subpopulations treated with light. en_US
dc.description.sponsorship OMAFRA-University of Guelph-partnership en_US
dc.language.iso en en_US
dc.subject Sicl1 en_US
dc.subject DOG1 en_US
dc.subject EMS en_US
dc.subject PVC en_US
dc.subject ABA en_US
dc.subject vernolic acid en_US
dc.subject Euphorbia lagascae en_US
dc.subject EFA, epoxy fatty acid en_US
dc.subject PD, physiological dormancy en_US
dc.subject MD, morphological dormancy en_US
dc.subject WTs, wild-type plants en_US
dc.subject Mutant, mutant plants en_US
dc.subject SRI, shattering resistance index en_US
dc.subject pdh1 en_US
dc.subject NS: non-shattering capsules en_US
dc.subject S: Shattered capsules en_US
dc.subject shattering en_US
dc.subject protogyny en_US
dc.title Breeding Euphorbia lagascae for large-scale production of vernolic acid, an important industrial epoxidized ester en_US
dc.title.alternative Breeding Euphorbia lagascae for large-scale production of vernolic acid en_US
dc.title.alternative Genetic Study of Germination and Seed Shattering in Euphorbia lagascae Spreng in Response to Different Seed Treatments en_US
dc.type Thesis en_US Plant Agriculture en_US Master of Science en_US
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