BIOLOGICAL AND GENETIC EVALUATION OF GENE FUND OFZIZIPHUS JUJUBE AND WILD STRAWBERRY IN ABSHERON PENINSULAR
Akhundova, N.I. | Gajieva, A.F.
formation of sorts through selection of new forms of inter-sort hybridization characterize higher plants. The purpose of the research is to bio-morphologically and genetically study jujube’s and wild strawberry’s gene fund collection samples for the selection and creation of new local perspective varieties adapted for the conditions of republic. The research tasks consist from use of morph-physiological, genetic and cytological analysis of varieties and forms of the collection. The annotation discusses data obtained through study of gene fund collections of frugivorous cultures – jujube and wild strawberries in dry subtropical zones. The gene fund of these cultures is represented by local varieties, forms and hybrids, as well as imported introduced varieties. The phenotypic, genetic and cytological versatility of varieties and forms have been studied. Collections of both cultures are polymorphic by phenotype, as well as by genome and chromosome set. The work shows that ancient jujube varieties are characterized by low content of the DNA in comparison with new selection varieties and hybrids. Apparently, during the evolution,the ancient varieties have developed the mechanisms of regulations allowing them to sustain with less amount of the DNA at the expense of reduction of repeats. The wild strawberry varieties are characterized with different phenotypes and different paces of the DNA synthesis. Based on the DNA and RNA/DNA content indicators, varieties, which are highly, averagely and low resistant to the salt and osmotic stresses were revealed. Both collections are polymorphic according to the chromosome set and consist fromdiploid, triploid (jujube), tetraploid, hexaploidand octoploidvarieties and forms.Show more [+] Less [-]