By Dr. phil. Karl Esser, Dr. rer. nat. Rudolf Kuenen (auth.)

ISBN-10: 3642868142

ISBN-13: 9783642868146

ISBN-10: 3642868169

ISBN-13: 9783642868160

The value of genetics in biology at the present time stems to a substantial quantity from the information which has been bought by using fungi as experimental items. because of their brief iteration time, their ease of tradition below laboratory stipulations, and the possibil­ ity of opting for the 4 items of meiosis via tetrad research, the fungi have confirmed themselves in lots of methods greater to the vintage genetic experimental fabric corresponding to Drosophila and maize. simply because they allow research of genetic tremendous constitution in addition to biochemical research of the functionality of the genetic fabric, the fungi can be utilized, simply because the micro organism and bacteriophages, for molecular organic study. extra, the fungi, as a result of their basic organi­ zation, are appropriate for research of the genetic and physiological bases of morphogenesis and of extrachromosomal inheritance. This monograph is an try to summarize and interpret the result of genetic study on fungi. The reader may be reminded that evaluate and interpretation of unique study are necessarily encouraged by means of the authors' personal reviews. An figuring out of the elemental ideas of genetics is assumed.

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If minor differences in the life cycles of these four species are disregarded, the investigations have led to results which are in complete agreement. These are presented in detail using Sordaria macrospora as an example. In order for the entire developmental cycle of the monoecious, selffertile Sordaria macrospora to run its course at least 15 non-allelic genes are necessary. Moreover, it is likely that with a more intensive search for morphological mutants an appreciably greater number of such morphologically important hereditary factors will be identified.

Relative sexuality . . E. Vegetative incompatibility . F. Evolution . . . . I. Reduction of sex organs II. Incompatibility and dioecism Literature . . . . . 41 48 48 53 54 54 55 55 57 62 63 65 67 69 69 70 74 75 76 77 78 80 81 81 84 84 85 86 88 88 91 92 95 98 101 101 103 104 Genetic control of reproduction consists of two phases: 1. differentiation during ontogeny which leads to the formation of asexual and sexual reproductive cells and 2. the occurrence of karyogamy and meiosis. The interaction of these regulatory functions throughout evolution is undoubtedly responsible; for the great diversity which the fungi exhibit both in morphology and in sexual behavior.

C. Alternatives to sexual reproduction D. Relative sexuality . . E. Vegetative incompatibility . F. Evolution . . . . I. Reduction of sex organs II. Incompatibility and dioecism Literature . . . . . 41 48 48 53 54 54 55 55 57 62 63 65 67 69 69 70 74 75 76 77 78 80 81 81 84 84 85 86 88 88 91 92 95 98 101 101 103 104 Genetic control of reproduction consists of two phases: 1. differentiation during ontogeny which leads to the formation of asexual and sexual reproductive cells and 2. the occurrence of karyogamy and meiosis.

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Genetics of Fungi by Dr. phil. Karl Esser, Dr. rer. nat. Rudolf Kuenen (auth.)


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