Name
Zvyagin Andrey Sergeyevich
Scholastic degree
•
Academic rank
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Honorary rank
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Organization, job position
Kuban State Agrarian University
Web site url
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Articles count: 15
The polymorphism is the diversity of varieties in ampelografy - the presence simultaneous permanent in the population of two or several phenotypic and genotype differing groups of plants of one variety – i.e. clones. In viticulture the isogenic population is usually called “clone” and variety as the total of clones or forms – i.e. it is heterogenic. Polymorphism of varieties has big practical sense, as varieties-clones have the harmonic complementary adaptive ampelocenosis and higher economical effect for production. In the article the polymorphism of two heterogenic population - the group Pinot and Riesling, which are the best specimen of French and German viticulture is described on the phenotypic level of leaves
The clone selection has very outstanding position behind the actual problems of modern viticulture in the world and in our country. This problem usually has the primary importance behind the scientist who works with grape in all the countries such as USA, German, French, Spain, Italy, Hungary, Bulgaria, Moldavia, Ukraine and etc. In our country last years some positions becomes solving in the plane of scientific research work. Consequently, in the article the history and the situation of clone selection of grape on the Eurasian continent is widely covered.
Two methods were used for DNA extraction from herbarium leaves of two subspecies: V. vinifera subsp. sativa D.C. и Vitis vinifera ssp. silvestris Gmel. DNA extraction is difficult from herbarium leaves plants because of the presence of metabolites that interfere with DNA isolation procedures and downstream applications such as DNA restriction, amplification, and cloning. The quality of DNA was checked on a spectrophotometer by measuring the level of absorption at A260/280 nm. The results showed the successful extraction from mature and dried leaves of DNA when using the СТАB-method №2. Another method hasn’t shown satisfactory results in amplification of DNA
Extraction of the DNA from leaves of genus Vitis is a very difficult task, as a grape has a lot of elements, which make difficult to use it in the genetic manipulation. In that article used the methods of extraction of the DNA with silica (SiO2) particles as the absorbent material for getting better quality DNA
In this article we have described our work on genotyping of new ten productive wine grape protoclones
In this article we have described a study of genotyping of new three productive wine grapes protoclones: Rhine Rieslin, Verdot black and Johanniter
The analyze of the genetic relationship or diversity between clones was made by using the microsatellites in the groups with black berries: Cabernet-Sauvignon and Merlot, and with white berries: Muscat white, Riesling and Pinot. It was possible to approve the objective evidence on the polymorphism between these forms during this analyze. These results become the rationale for the selection, breeding and making registration of these protoclones of four above-named varieties groups in the varieties-clones for state research: Cabernek, Cabernet Fanogoriisky, Cleret temrukskii, Merlok, Pinot white, Rieslinalk, Riesling Anapa, Riesling Fanogoriisky, Muscat Temruk, Shardonek and others. These varieties-clones are accepted by State commission of Russia, they will enrich the viticulture assortment of Anapa-Tamanskay zones of Kuban, therefore Russia too
The article presents the structural and phylogenetic
analysis of VIT_02s0033g00410,
VIT_02s0033g00390 and VIT_02s0033g00450
genes of the grapevine genome and the closely
related orthologous gene MYB114 of the
Arabidopsis genome. These genes are responsible
for the biosynthesis of anthocyanin in the organs of
model plants and are of interest not only for practical
production and breeding, but also for fundamental
research. These genes were analyzed for GCcomposition
of nucleotides, the presence of cisregulatory
elements and promoter regions. DNA and
protein sequences were aligned to look for similar
elements, which allowed further analysis of the
ultraconservative domains of four genes. Based on
the results of search and identification of the
conservative regions, a cluster tree was constructed,
which made it possible to identify the separation of
gene sidelines from, presumably, the main one. At
the same time, the construction of consensus trees
based on DNA and protein sequences revealed their
absolute similarity. "The Minimal Evolution Tree"
allowed calculating the approximate dates of the
appearance of the mutations and the divergence
times of the gene branches between each other. At
the same time, the appearance of the Vitis genus and
its separation from the Rosales was taken as the time
first divergence point. In the end, homologous
metabolic pathways were searched between
grapevine and Arabidopsis, which revealed the
presence of homologous proteins in the grape
proteome. In this turn, it already confirms the
existence of similar biosynthetic pathways and, as a
consequence, interactions such as "DNA-protein"
and "protein-protein"
The analysis of genetic polymorphisms of 12 autochthonous grape varieties grown in the National ampelographic collection of Russia (Anapa district of the Krasnodar region) through the study of allelic diversity at six microsatellite loci: VRZAG79, VVMD5, VVMD7, VVMD27, VRZAG62, VVS2 has been done. We have found that all native varieties have a unique set of allele. The assessment of genetic relationships varieties has been performed using cluster analysis. Data for DNA certification of the investigated genotypes of the grapes has also been obtained in the article
The analyze of the genetic relationship or diversity between clones was made by using the microsatellites in the groups with black berries: Cabernet-Sauvignon and Merlot, and with white berries: Riesling and Pinot. These results become the rationale for the new technology of clone selection, breeding and making registration of these clones of four above-named varieties groups in the varieties-clones for state research: Cabernek, Cabernet Fanogoriisky, Merlok, Pinot white, Rieslinalk, Riesling Anapa and Riesling Fanogoriisky. These varieties-clones are accepted by State commission of Russia, they will enrich the viticulture assortment of Anapa-Tamanskay zone of Kuban, therefore Russia