scholarly journals Genes Associated with the Flax Plant Type (Oil or Fiber) Identified Based on Genome and Transcriptome Sequencing Data

Plants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2616
Author(s):  
Liubov V. Povkhova ◽  
Nataliya V. Melnikova ◽  
Tatiana A. Rozhmina ◽  
Roman O. Novakovskiy ◽  
Elena N. Pushkova ◽  
...  
Keyword(s):  
Linum Usitatissimum ◽  
Transcriptome Sequencing ◽  
Sequencing Data ◽  
Plant Type ◽  
Fiber Flax ◽  
Linum Usitatissimum L ◽  
Stage Of Development ◽  
Wide Range ◽  
Flax Plant ◽  
Wall Components

As a result of the breeding process, there are two main types of flax (Linum usitatissimum L.) plants. Linseed is used for obtaining seeds, while fiber flax is used for fiber production. We aimed to identify the genes associated with the flax plant type, which could be important for the formation of agronomically valuable traits. A search for polymorphisms was performed in genes involved in the biosynthesis of cell wall components, lignans, fatty acids, and ion transport based on genome sequencing data for 191 flax varieties. For 143 of the 424 studied genes (4CL, C3′H, C4H, CAD, CCR, CCoAOMT, COMT, F5H, HCT, PAL, CTL, BGAL, ABC, HMA, DIR, PLR, UGT, TUB, CESA, RGL, FAD, SAD, and ACT families), one or more polymorphisms had a strong correlation with the flax type. Based on the transcriptome sequencing data, we evaluated the expression levels for each flax type-associated gene in a wide range of tissues and suggested genes that are important for the formation of linseed or fiber flax traits. Such genes were probably subjected to the selection press and can determine not only the traits of seeds and stems but also the characteristics of the root system or resistance to stresses at a particular stage of development, which indirectly affects the ability of flax plants to produce seeds or fiber.

scholarly journals Fiber cell development and fiber yield of flax (Linum usitatissimum L.) affected by the seasonal temperature pattern

2015 ◽  
Vol 95 (6) ◽  
pp. 1215-1220 ◽  
Author(s):  
Guang-Hui Du ◽  
Fei-Hu Liu ◽  
Gordon Rowland
Keyword(s):  
Linum Usitatissimum ◽  
Cell Development ◽  
Fiber Cell ◽  
Temperature Pattern ◽  
Seasonal Temperature ◽  
Fiber Flax ◽  
Fiber Cells ◽  
Linum Usitatissimum L ◽  
Fiber Yield ◽  
Favorable Temperature

Du, G.-H., Liu, F.-H. and Rowland, G. 2015. Fiber cell development and fiber yield of flax (Linum usitatissimum L.) affected by the seasonal temperature pattern. Can. J. Plant Sci. 95: 1215–1220. Three fiber flax cultivars ‘Ariane’, ‘Argos’ and ‘Viking’ were cultured in growth chambers under three seasonal temperature patterns (STPs) [parabolic (P), anti-parabolic (AP) and quasi-horizontal (QH) configurations]. The effect of STP was studied on fiber cell development and on fiber yield. The results indicated that, compared with the quasi-horizontal seasonal temperature pattern (QH-STP), the size of fiber cell cavity (SFCC) and fiber content (FC) decreased under parabolic seasonal temperature pattern (P-STP). However, the size of fiber cell (SFC) and SFCC decreased, but the number of fiber cells per bundle (NFCB) increased under anti-parabolic seasonal temperature pattern (AP-STP). Moreover, there was a significant positive correlation between fiber weight (FW) and width of fiber bundle (WFB), also between FC and NFCB. Considering the response of fiber flax cultivars to the different STPs, ‘Ariane’ had smaller SFC and SFCC, thinner thickness of fiber cell wall (TFCW) under AP-STP, and smaller SFCC and thicker TFCW under P-STP than under QH-STP, while ‘Argos’ had smaller SFC and SFCC, and higher NFCB under AP-STP, and smaller SFC under P-STP than under QH-STP. However, STPs had little effect on the fiber cell development of ‘Viking’. All three cultivars had high FC under AP-STP than under P-STP. These observations indicate that the fiber cell development and fiber yield of flax were related to the STP and suggest that AP-STP are the most favorable temperature conditions for fiber flax growth.

scholarly journals DISEASES DIVERSITY FOR FLAX GENETIC RESOURCES IN LATVIA

2017 ◽  
Vol 1 ◽  
pp. 278
Author(s):  
Inga Stafecka ◽  
Dace Grauda ◽  
Veneranda Stramkale
Keyword(s):  
Flow Cytometry ◽  
Life Cycle ◽  
Genetic Resources ◽  
Environmental Conditions ◽  
Linum Usitatissimum ◽  
Field Trials ◽  
Research Centre ◽  
Standard Variety ◽  
Linum Usitatissimum L ◽  
Stage Of Development

Flax (Linum usitatissimum L) yield of stem and seeds and them quality is influenced by a number of harmful diseases but investigation about pathogens in recent years have not been done in Latvia. Each stage of development of disease is important in the pathogen life cycle and requires certain condition. Goal of this study have identify possibilities of the pathogens and were assess disease severity depending on the genotypes on flax in variable environmental conditions. The resistance to the diseases for 24 flax genotypes and standard variety ‘Vega 2’ were evaluated. The field trials have been carried out over the period from 2015 to 2016 at the Research Centre of Priekuli, part of Vilani in Latgale. Disease progress was measured every week, and for each treatment, severity of diseases index and the area under the disease progressive curve (AUDPC) were calculated. The flow cytometry method for detection of flax pathogens was developed. The Fusarium avenaveum was dominating disease and statically significant in both vegetation periods. In 2015 were identified statically significant (p

scholarly journals CREATION OF LINUM USITATISSIMUM INITIAL MATERIAL WITH MARKER SIGN – YELLOW-COLORED SEEDS

2021 ◽  
Vol 3 (27) ◽  
pp. 135-143
Author(s):  
V.P. Ponazhev ◽  
Keyword(s):  
Seed Yield ◽  
Linum Usitatissimum ◽  
Seed Weight ◽  
Seed Mass ◽  
Point Of View ◽  
Breeding Value ◽  
Initial Material ◽  
Standard Variety ◽  
Fiber Flax ◽  
Linum Usitatissimum L

Creation of the initial material of fiber flax (Linum usitatissimum L.) with marker signs is a promising direction of breeding, which determines the efficiency of breeding varieties with improved properties. The purpose of the research was to create initial flax material for obtaining seeds with a marker sign (yellow color) and increased weight. The studies were carried out at the Federal Research Center for Bast Fiber Crops in 2015–2018. In our work, we used flax varieties ‘Smolich’, ‘Antey’, ‘C-108’, as well as forms obtained from these varieties. These varieties were used as control. Nurseries were laid under conditions of a leveled agricultural background. Seeds were sown in a square way (2.5×2.5 cm). The experiments were conducted according to the current methods, including phytopathological testing. Soil – sod-podzolic, medium loamy, cultivated. Selyaninov Hydrothermal Coefficient (HTC) in 2015 was 1.3; in 2016 – 2.2; in 2017 – 1.8; in 2018 – 1.3. During the flax plants selection, we obtained three forms with yellow-colored seeds. Yellow-seeded form No. 1 was valuable from the breeding point of view. It exceeded standard variety ‘Smolich’ in seed weight by 0.8 mg (16.0%), in seed yield – by 0.06 t/ha (9.8%). Form No. 1 belongs to the improved fiber flax line. Form No. 3 had a higher seed mass (5.6 mg) compared to standard variety ‘C-108’. In terms of seed yield and 1000-seed weight, this form exceeded the standard by 0.08 t/ha or 14.8% and 0.49 g or 10.6%, respectively. Form No. 3 is a breeding material for creating varieties of bilateral use. Form No. 2 had signs of the oil flax line. It exceeded standard variety ‘Antey’ in seed yield by 0.18 t/ha (40%); 1000-seed weight – by 0.53 g (11.2%). The created material has a breeding value. It was transferred to the bioresource collection of flax for its replenishment, to the bank of the characteristic collection and was additionally included in the breeding process.

scholarly journals The source material in the creation of late-maturing variety of fiber-flax Fenix

2019 ◽  
pp. 36-39
Author(s):  
Elena Alexandrovna Trabyrova ◽  
Svetlana Mikhailovna Зуева ◽  
Sergey Mikhailovich Chekhalkov ◽  
Aminat Msostovna Konova ◽  
Anna Yurievna Gavrilova
Keyword(s):  
Environmental Factors ◽  
Linum Usitatissimum ◽  
Growing Season ◽  
Source Material ◽  
Standard Variety ◽  
Fiber Flax ◽  
Linum Usitatissimum L ◽  
Flax Seeds ◽  
Variety Testing ◽  
Flax Straw

In the comparative variety testing it was evaluated promising material of fiber-flax (Linum usitatissimum L.). The aim of the work was to identify the most valuable cultivar fiber-flax according to their  economic and biological characteristics, and adaptability to adverse environmental factors.  Valuable forms of fiber-flax on the main economically significant features were identified in the Smolensk region. The total length of the stem of A-11 and L-198 exceeded the standard S-108 by 8 - 10%. The duaration of the growing season in all studied varieties was 5 days longer than that of the standard variety.   L-198 exceeded the standard S-108, both in yield of flax straw and fiber content in the stem, the excess was 9 and 3%, respectively. The highest yield of flax seeds (0,58 t/ha) was also in L-198 (21% higher than in the standard). The yield of long fiber in the stem of this sample was 20,1%, which is 0,8% higher compared to the standard. The calculation of the economic efficiency of cultivation of the L-198 variety for fiber-flax seeds also showed its advantage over the S-108 standard.

Productivity of fiber flax (linum usitatissimum l.) varietys of different ecological and geographical origin depending on the treatments of crop production in the conditions of Western Forests-Steppe of Ukraina.

2018 ◽  
pp. 81-87
Author(s):  
Antin Shuvar
Keyword(s):  
Linum Usitatissimum ◽  
Crop Production ◽  
Geographical Origin ◽  
Maximum Yield ◽  
Optimal Harvesting ◽  
Fiber Flax ◽  
Target Direction ◽  
Product Use ◽  
Linum Usitatissimum L

The results of researches on the influence of the terms of harvesting varieties of fiber flax varieties of different ecological and geographical origin on the productivity of fiber and seeds are given. The optimal harvesting dates for the varieties of Zhuravka, Esman and Kamenyar have been established, depending on the target direction of product use. The highest yield of all fiber of fiber flax was obtained in early yellow maturing term depending on the grade of 3.37 t / ha in the Esman variety and 2.58 t / ha in the Kamenyar variety, and the harvesting of these varieties into other phases of ripeness leads to a decrease of 3,1-15,1%. For the Zhuravka variety, the best harvesting period for obtaining the maximum yield of fiber is the phase of green stiffness – 2.78 t / ha).

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