Molecular genetic and physiological studies on the sex-determining M-m and A-a genes in cucumber (Cucumis sativus L.) [Elektronische Ressource] / von Diro Terefe

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Molecular Genetic and Physiological Studies on the Sex-determining M/m and A/a Genes in Cucumber (Cucumis sativus L.) von der Naturwissenschaflichen Fakulität der Universität Hannover zur Erlangung des akademischen Grades eines Doktors der Gartenbauwissenschaften -Dr. rer. hort.- genehmigte Dissertation von Diro Terefe (MSc) geboren am 28.07.1974 in Gedo (Shoa), Äthiopien 2005 Referent: Prof. Dr. Turan Tatlioglu Korreferent: Prof. Dr. Edgar Maiß Tag der Promotion: 27. 06. 2005 Dedicated to my grandfather, the late Beyene Buya Molecular Genetic and Physiological Studies on the Sex-determining M/m and A/a Genes in Cucumber (Cucumis sativus L.) Abstract Sex determination in cucumber is the most extensively studied subject. Three major genes (F/f, M/m and A/a) have been described that control sex in cucumber. In addition to these genes, environmental and hormonal factors also influence the sex in cucumber plants. Because of its direct influence on sex expression ethylene is considered as a sex hormone of cucumber. In relation to the sex hormone ethylene, the assumed role of the sex-determining F/f, M/m and A/a genes is that the F/f gene controls the level of ethylene; the M/m gene influences ethylene perception and signaling and the A/a gene may control the level of ethylene biosynthesis, perception and signaling.

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Published 01 January 2005
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Language English
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