Background. The XRQ sunflower genome has been sequenced but not yet fully annotated, and all candidate genes for most traits have identified. Disclosing the relationships among in this study will help to understand genetic control over phenotypic characters. Materials methods . A set of 237 lines from VIR’s collection was phenotyped their morphological characters (plant height; branching type; shapes sizes leaf, petiole, flower head, disk ray florets; downy mildew damage rate) genotyped with...

Лен масличный – универсальная техническая культура, способная в отличие от ярового рапса и сурепицы обеспечивать хорошие урожаи засушливых условиях, которые все чаще наблюдаются на Среднем Урале. Цель исследований изучить новые образцы льна из коллекции ВИР, выделить перспективный селекционный материал, обладающий комплексом хозяйственно полезных признаков. Задачи: дать характеристику новым образцам сравнении со стандартным сортом оценить их перспективы для дальнейшей селекционной работы....

The publication characterizes flavonoids – plant pigments, their role, classification, and biosynthesis. Attention is mainly paid to the enzymes of cytochrome P450 class, which, in addition participation flavonoid biosynthesis, play a major role many other processes, such as polymer hormone metabolism, defense against unfavorable factors. Various information about 3 ’, 5 ’ -hydroxylase (F3 H) gene presented, highlighting key advances problems its study. this anthocyanin biosynthesis...

This review is devoted to the description of chemical peculiarities industrial oil crops cultivated (or prospective for cultivation) in Russia, which are stored VIR collection. Different have similar fatty acids biosynthesis pathways, but each species has its own individualities composition and genetic control. The diversity crop opens possibility multipurpose utilization practically all segments. Sunflower, rapeseed, flax, mustard, camelina safflower Russia as crops. Castor beans, perilla,...

Weather has significant impact on growth and plants development. It is important to analyze the influence of changing climate conditions expression agronomical characters. Two flax varieties were grown from 1987 2018 in North-West Russia. Whether their agronomic characters analyzed using variance correlations analyses. Significant year manifestation all evaluated was revealed. Starting June high temperatures accelerate development at stages. Prolongation germination - flowering period most...

Weather has significant impact on plant growth and development. It is important to analyze the influence of changing climate conditions expression agronomic characters. Two flax varieties were grown from 1987 2018 in Northwest Russia. their characters analyzed using variance correlations analyses. Significant a particular year manifestation all evaluated was revealed. Starting June, high temperatures accelerate development at stages. Prolongation germination-flowering period most for...

Structuring and phenotyping genetic diversity is an important aspect of the work with breeding sources materials.
 In Introduction, authors pointed out role N.I. Vavilovs scientific foresight in defining topical trend researching a crop, particularly analysis its biochemical composition. As target their research, chose characters identifiable process metabolomic conducted by means gas chromatography mass spectrometry.
 Materials methods. The object was grain naked covered forms...

Background. Linseed solin varieties were created for nutrition, but the effect of oil fatty acid (FA) composition on other characters is not clear.
 Materials and methods. Using 6 inbreeding generations from 26 heterogeneous flax accessions generated 19 high (HL), 7 medium (ML) 14 low linolenic (LL) lines. For each lines contents 5 basic FA: palmitic, stearic, oleic (OLE), linoleic (LIO) (LIN); ratio LIO/LIN, iodine number, vegetative period (VP) phases plants size evaluated....

ABSTRACT Thirteen pure lines from VIR flax genetic collection were evaluated for their vegetative period, production, quality of textile fibre, structure and composition the fibre. Correlation analyses showed that strength technical fibres was positively correlated with plant height, straw production number bundles per stem section negatively diameter elementary fibres. The fineness flexibility linked ratio between areas fibre xylem tissues relative amount encrusting components to cellulose...

Photosynthesis is one of the main biological processes that ensure life on planet. The use knowledge about genetic control chlorophyll biosynthesis will help to increase productivity flax. paper presents a study hybrids from crosses five lines defective in coloration and with green plant, differing other morphological characteristics. Inheritance 4 nuclear genes controlling plant has been established. independent ygp1 (in gc-210 line) ygp2 gc-473 yellow-green young ( Xanthovirescens )....

Abstract MicroRNAs (miRNAs) are a class of non-coding RNAs about 20-24 nucleotides long. They play an important role in the gene regulation at post-transcriptional level. affect plant genome response to environmental stress. The miRNA-based molecular markers is type functional reported very few plants. However, information connected evaluation genotypes by this within single species missing. Considering stability, polymorphism, functionality and transferability potential markers, research...

Flax (Linum usitatissimum L.) is an important oil and fiber crop. Using modern methods for flax breeding allows accelerating the introduction of some desired genes into genotypes future varieties. Today, condition their creation development research, that based on next-generation sequencing (NGS). This review summarizes results obtained using NGS in research. To date, a linkage map with high marker density has been L. usitatissimum, which already being used more efficient search quantitative...

MicroRNAs represent small non-coding RNAs that play important role in regulating gene expression under various biotic and abiotic stresses as well different developmental stages of plants. They are involved wide variety biological metabolic pathways The research was focused on the potential selected miRNA-based molecular markers (miR156 miR168) to map polymorphism level flax genome (flower bud - flowering – boll development) a reflection activity specific miRNAs these organs tissues. miRNA...

Слизь из семян льна, ценный продукт для пищевой промышленности и медицины, а также сырье при производстве биокомпозитов. Она образуется во вторичной клеточной стенке эпидермальных клеток оболочки способствует их распространению животными, адгезии с почвой, привлечению почвенных микроорганизмов в ризосфере, используется питании проростка. В слизи льна на полисахариды приходится 83,3 %, белки 4,6 зольные вещества 11,8 %. Для изучения состава углеводов (в отличие от белков) не разработано...

The review summarizes diverse knowledge about the problem of Linum usitatissimum L. response on photoperiod. Within this species, high genetic variability photosensitivity degree and influence photoperiod different plants characters were discovered. It was shown that in flax, earliness flowering long daylight is not strictly related to low photosensitivity, late genotypes with can be found. In short daylight, various plant stable or display reactions: increase decrease their values. Also,...

Background . There are strict requirements for a modern flax cultivar. It must have whole set of valuable characters, including rust resistance. Materials and methods The collection 2485 accessions held by VIR was evaluated using artificial provocative infection. Results Almost all domestic foreign varieties collected before 1957 were highly or extremely susceptible to rust. Five Russian kryazhs1 cv. ‘GDS-3’ developed at found retain resistance up the present moment. Lines derived from them...

A complete cyclic crossing between representatives of different taxa cultivated flax ( Linum usitatissimum L.), including its primitive forms, and the wild spccies L. angustifolium Huds. was carried out, hybrid progeny studied. On basis similarity morphological features, ability to cross with each other species ssp. bienne (Mill.) Stankev. viable progeny, it suggested that had been ancestor Colchian flax, from which linseed, intermediate finally fibre forms consequentially evolved. The could...

Mucilage of flax is a valuable product for food, medicine and biocomposites production.Each direction use needs special characteristics seeds, so it necessary to describe polymorphism mucilage carbohydrate composition determine the effect seed color pleiotropic effects genes controlling on chemical composition.The originality work consists in lines genetic collection with identified methods multivariate nonparametric statistics identify patterns influence composition.Seed polysaccharide was...

Market demand for flax fiber continues to grow. Partially, it can be replaced with linseed fiber. In 2015–2017, 40 accessions were evaluated in North-West of Russia. Warm-water retted was tested the technique used flax. Contrasting weather conditions 2015–2017 made possible compare characters. Since plant height and yield long fibers are determined mainly by genotype, is select promising genotypes directly during breeding process under unusual conditions. A significant contribution formation...

Three flax lines: gc-204 (with opened flowers, curved stamen filaments, sterile anthers, forming few seeds by selfpollination), gc-208 and gc-188 (fertile ones, sterility occurs only when hybridized with other lines) were used as CMS sources. These lines can be involved in heterosis breeding. Genes controlling male fertility restoration RFO8, RFO9 identified. Recessive alleles of the genes restoring rft3-2, rft3-3, rft3-6, rft3-7, rft5-2, rft6, rft7 dominant RFT4-3 determine tubular shape...