Title:
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Genetic Analysis of Male Sterility and Self-Compatibility in Russian Dandelion (Taraxacum kok-saghyz) |
Author:
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Di, Tiantian
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Department:
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Department of Plant Agriculture |
Program:
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Plant Agriculture |
Advisor:
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Wolyn, David |
Abstract:
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Russian dandelion (Taraxacum kok-saghyz Rodin) produces high-quality natural rubber and can be developed as a new crop for Ontario, Canada and elsewhere. Domestication and genetic analysis of important traits are critical in a breeding program for this species. This study investigates two traits required for the production of hybrids: male sterility and self-compatibility (SC). Over generations of crossing, cytoplasmic male sterility (CMS), interacting with a dominant nuclear restorer of fertility allele, Rf, was identified. SC was also a dominant trait at a single locus. Penetrance of both CMS and SC was temperature dependent as increased temperature caused reversions to fertility and self-incompatibility. Continued breeding and selection for stable genotypes with CMS and SC may advance the introduction of hybrids and Russian dandelion as a new crop. |
URI:
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http://hdl.handle.net/10214/10304
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Date:
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2017-03 |
Terms of Use:
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