Agro-morphological variability and genetic diversity in linseed (Linum usitatissimum L.) germplasm accessions with emphasis on flowering and maturity time

2021 ◽  
Author(s):  
Ankit Saroha ◽  
Deepa Pal ◽  
Vikender Kaur ◽  
Sandeep Kumar ◽  
Arti Bartwal ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Linum Usitatissimum ◽  
Morphological Variability ◽  
Linum Usitatissimum L ◽  
Germplasm Accessions

scholarly journals Genetic Divergence of Flax Genotypes (Linum Usitatissimum L.) Utilizing Microsatellite Markers

2017 ◽  
Vol 5 (1) ◽  
pp. 123-129 ◽  
Author(s):  
Sumita Nag ◽  
Jiban Mitra
Keyword(s):  
Genetic Diversity ◽  
Microsatellite Markers ◽  
Linum Usitatissimum ◽  
Rank Correlation ◽  
Natural Fibre ◽  
Similarity Coefficients ◽  
Oilseed Crops ◽  
Linum Usitatissimum L ◽  
Ssr Primers ◽  
Ssr Loci

Flax (Linum usitatissimum L.), stoods in position third, being the largest natural fibre crop and simultaneously one of the five preeminent oilseed crops in the world. SSR/microsatellite markers are extensively utilized for genetic diversity analysis and cultivar identification considering their myriad abundance, co-dominant inheritance, steep polymorphism, reproducibility, and comfort of assay by PCR. Ten microsatellites were amplified in 27 genotypes of Flax. The study was undertaken to assess the genetic diversity in flax and to select most diverse genotypes for future breeding program. Primer efficiency parameters were studied. The 10 SSR loci amplified a total of 41 alleles that were used for genetic analysis. Most primers have PIC value greater than 0.5 and the LU6 marker was highly polymorphic PIC = 0.95. Estimates of RP̅ were highest for the primer LU1 (0.68). The maximum MI was observed for the primer LU10 (3.56). The H and D ranged from 0.26 to 1.78 and 0.36 to 5.40, respectively. According to Spearman rank correlation, PIC and MI were most important parameters in assessing the efficiency of whole set of 10 SSR primers. Dendrogram was constructed using the genetic similarity coefficients using UPGMA. PCo-A was also performed in support. Genetic diversity in Flax was revealed at molecular level.

Evidence of the domestication history of flax (Linum usitatissimum L.) from genetic diversity of the sad2 locus

2005 ◽  
Vol 112 (1) ◽  
pp. 58-65 ◽  
Author(s):  
Robin G. Allaby ◽  
Gregory W. Peterson ◽  
David Andrew Merriwether ◽  
Yong-Bi Fu
Keyword(s):  
Genetic Diversity ◽  
Linum Usitatissimum ◽  
Linum Usitatissimum L ◽  
History Of

scholarly journals Genetic Diversity Analysis of Linseed (Linum usitatissimum L.) at Bilaspur Plain Region of Chhattisgarh

2021 ◽  
Vol 5 (6) ◽  
pp. 59-63
Author(s):  
Pallavi Manhar ◽  
Roshan Parihar ◽  
NK Choure ◽  
AP Agrawal ◽  
Dhanendra Kumar
Keyword(s):  
Genetic Diversity ◽  
Linum Usitatissimum ◽  
Diversity Analysis ◽  
Genetic Diversity Analysis ◽  
Linum Usitatissimum L ◽  
Plain Region

Genetic diversity of cultivated flax (Linum usitatissimum L.) and its wild progenitor pale flax (Linum bienne Mill.) as revealed by ISSR markers

2010 ◽  
Vol 57 (7) ◽  
pp. 1109-1119 ◽  
Author(s):  
Hüseyin Uysal ◽  
Yong-Bi Fu ◽  
Orhan Kurt ◽  
Gregory W. Peterson ◽  
Axel Diederichsen ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Linum Usitatissimum ◽  
Issr Markers ◽  
Wild Progenitor ◽  
Linum Usitatissimum L ◽  
Pale Flax ◽  
Cultivated Flax

Extent and pattern of genetic diversity in linseed(Linum usitatissimum L) under irrigated ecology

2018 ◽  
Vol 5 (01) ◽  
Author(s):  
M. P. CHAUHAN ◽  
H. K. SINGH ◽  
JAY KUMAR YADAV ◽  
M K. MAURYA
Keyword(s):  
Genetic Diversity ◽  
Cluster Analysis ◽  
Multivariate Analysis ◽  
Analysis Of Variance ◽  
Linum Usitatissimum ◽  
Morphological Traits ◽  
Field Data ◽  
Relative Importance ◽  
Linum Usitatissimum L ◽  
Phenotypic Divergence

Sixty six genotypes of linseed were analysed for the morphological traits to investigate the genetic diversity between and within the genotypes. The field data was initially subjected to analysis of variance. There were highly significant differences among the genotypes for all the traits indicating the presence of variability among the genotypes and the possibility to undertake cluster analysis. The phenotypic divergence and relative importance were estimated by multivariate analysis. The cluster analysis classified linseed genotypes in to nine major groups. The maximum intercluster diversity was observed between cluster VIII and V. Based on mean performance of the genotypes and intercluster distance the crosses between ICAR Sel-1 and L-9, NDC 2005-34, H660, LCK 87042, NDL2005-22, GS335 is recommended to get use full transgressive sergeants in linseed.

scholarly journals Linseed (Linum usitatissimum L.) genetic resources for climate change intervention and its future breeding

2017 ◽  
Vol 9 (2) ◽  
pp. 1112-1118
Author(s):  
Vikender Kaur ◽  
Rashmi Yadav ◽  
D.P. Wankhede
Keyword(s):  
Genetic Diversity ◽  
Genetic Resources ◽  
Linum Usitatissimum ◽  
Molecular Mechanisms ◽  
Stress Factors ◽  
Linum Usitatissimum L ◽  
Climate Resilience ◽  
Wide Range ◽  
The Future ◽  
Smart Agriculture

Linseed or flax (Linum usitatissimum L.), a multiple purpose crop valued for its seed oil, fibre, probiotic and nutraceutical properties, is adapted to different environments and agro-ecologies. Modern breeding techniques using only limited number of selected varieties have resulted in a loss of specific alleles and thus, reduction in total genetic diversity relevant to climate-smart agriculture. However, well-curated collections of landraces, wild linseed accessions and other Linum species exist in the gene banks and are important sources of new alleles. This review is primarily focused on the studies of genetic diversity of linseed species and evaluation related to tolerance to abiotic and biotic stress factors that could be useful for improving linseed through future promising breeding programs in addition to briefly discussing different morphotypes and nutraceutical importance. Wide diversity in linseed germplasm indicates a considerable potential for improving this crop for both agronomic and quality traits required for developing climate-resilience tailored to specific environments. Recent release of the flax genome sequence coupled with wide range of genomic and analytical tools in public domain has furthered understanding of molecular mechanisms for detailed study of the genes underlying flax adaptation to stress and diversity in commercially important accessions. Important climate related traits and their constituent genes are presented and key developments for the future highlighted emphasizing the urgent need to increase the use of genetically diverse germplasm to meet the emerging challenges in agricultural production and to conserve valuable genetic resources for the future.

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