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Linseed is the only cultivated species from the genus Linum and selection is the most frequently used method to develop varieties from the crop resulting in the reduction of the genetic diversity. Linum bienne Mill. is genetically more diverse than linseed and produces fertile hybrids with linseed. The author aimed for the development of hybrids wi...
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Context 1
... the nested analyses of variance, an extension of one way ANOVA (Table 5) showed splitting parental genotypes into wild and cultivated instead of splitting F 2 H into SF 2 and BCF 2 hybrids to form four groups showed a relatively higher variation among groups in boll diameter and seed length but lower variation in seed width and seed weight. However, only the observed mean value differences for 1000-seed-weight among subgroups within groups were not significant. ...Context 2
... from seed weight and seed length, the observed mean values differences showed significant (P< 0.05) when the population is grouped into four groups. Except for seed length, all the characters showed significant variation in mean values among subgroups within the three, four and five groups ( Table 5). ...Context 3
... of grouping, number of groups and the variability of the characteristic considered in the analysis ( Table 5) were some of the factors for the observed mean values differences among groups and subgroups within groups to be significant or non-significant. The contribution of variations among groups to total variations and level of significances increased as the group split further or the number of groups increased. ...Context 4
... the proportion of cultivated germplasm genetic composition in F 1 hybrids changed from 50 to 75% in the F 2 hybrids through backcrossing with cultivated parental genotype, the lower percentage linolenic and higher palmitic changed to the cultivated parental content. Therefore, hybrids with higher genetic Table 5. Mean squares for BD, SL, SW and 1000-SW among groups, subgroups within group and within subgroups. ...Similar publications
Background:
Soil salinization and alkalization are among the major agricultural threats that affect crop productivity worldwide, which are increasing day by day with an alarming rate. In recent years, several halophytes have been investigated for their utilization in soil remediation and to decipher the mechanism of salt-tolerance in these high sa...
Seed shape is an important agronomic trait with continuous variation among genotypes. Therefore, the quantitative evaluation of this variation is highly important. Among geometric morphometrics methods, elliptic Fourier analysis and semi-landmark analysis are often used for the quantification of biological shape variations. Elliptic Fourier analysi...
Citations
... Міжвидова гібридизація між різними видами льону і раніше привертала увагу різних дослідників, які намагалися, насамперед, отримати новий селекційно цінний матеріал та визначити види-донори стійкості до різних хвороб та несприятливих умов довкілля. Серед успіхів цих досліджень можна відмітити отримання міжвидових гібридів культурного льону з деякими однорічними дикими видами, а також отримання гібридів від схрещування дикорослих видів між собою з дорощуванням незрілих зародків в штучних умовах (Mogilevskaya et al. 2002;Myshchenko 2003;Jhala et al. 2008;Soroka 2015;Kumar et al. 2016;Mhiret 2019). Але, на жаль, результати цих досліджень були обмеженими і залишилося багато питань та невирішених завдань. ...
Pale flax (Linum bienne) is long known to be the wild progenitor of cultivated flax (L. usitatissimum) and is expected to harbor an important source of genetic variability for flax genetic improvement. Here, we documented relevant studies on the taxonomy, biology, domestication, genetics, genomics, utilization, and conservation of the pale flax, with the hope of identifying the gaps in the investigation, conservation and utilization of this flax species. It was obvious that little exploration had been done, particularly regarding its utilization and conservation. Pale flax germplasm was not adequately collected across its distribution range for ex situ conservation. Explorative studies of pale flax for its use in modern flax breeding were scarce. Genetic analyses of adaptive traits and genomic analyses of pale flax germplasm were not comprehensive. Few genes of agricultural importance were reported. These documentations underline the need for a species vulnerability assessment, a comprehensive collection of extant pale flax germplasm, a detailed investigation of pale flax genes of importance to agriculture and scientific inference, and more exploration of pale flax for its utilization in the genetic improvement of cultivated flax.
