Evgenii Vladimirovich Levites^*, Svetlana Sergeevna Kirikovich^*

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Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia.
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Abstract: Experimental data that prove the existence of the zygotic combinatorial process occurring in an embryogenesis-entering zygote are presented in the paper. The zygotic combinatorial process is found when analyzing F1 hybrid plants obtained from crossing homozygous forms different, minimum, in two marker enzymes, and it is found in that hybrid plant which, with one marker enzyme heterozygous spectrum, has a homozygous spectrum of the other. The zygotic combinatorial process leads to F1 hybrids uniformity aberration. The zygotic combinatory process revealed in the study is supposed to be conditioned by chromosome polyteny in mother plant cells and diminution of chromatin excess from the embryogenesisentering zygote. An obligatory condition for combinatorial process is the presence of free exchange of chromatides among homological chromosomes in an embryogenesis-entering cell, i.e. the presence of crossing-over analogous to the one proceeding at meiosis.

Keywords: Isozymes; Polyteny; Diminution; Zygotic Combinatorial Process; Sugar Beet

Cite this paper: Levites, E. and Kirikovich, S. (2013) Zygotic combinatorial process in plants. Advances in Bioscience and Biotechnology, 4, 798-803. doi: 10.4236/abb.2013.47104.

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