scholarly journals Assessment of similarity of inbred lines and F1 generations in collection of winter rye (Secale cereale L.) / Ocena podobieństwa linii wsobnych i pokolenia F1 w kolekcji żyta ozimego (Secale cereale L.)

2015 ◽  
Vol 26 (4) ◽  
pp. 30-34
Author(s):  
Agnieszka Pyza ◽  
Helena Kubicka-Matusiewicz ◽  
Dariusz Gozdowski

Abstract Effective tools for evaluation of diversity in the collected gene resources of a given species are multivariate statistical methods. They provide information on phenotypic and genetic variability of collected material. The subjects of this study were nine inbred lines and three F1 generations of winter rye (Secale cereale L.), growing in experimental plots of the Polish Academy of Sciences Botanical Garden, Centre for Biological Diversity Conservation in Powsin. The evaluation was performed over the period of 3 years. Observations were made of the following traits: length of stem, length of spike, number of nodes in spike rachis, number of kernels per spike, weight of kernels per spike, weight of 1000 kernels, length of flag leaf, length of subflag leaf, length of third leaf, width of flag leaf, width of subflag leaf, width of third leaf, area of leaves per stem, number of stems per plant and area of leaves per plant. On the basis of cluster analysis and principal components analysis, two genetically homogeneous groups were identified. Mean values and standard deviations were calculated for each trait in each group and for all genotypes together. Multivariate distance matrix permitted identification of the most genetically similar and most distant forms.

1979 ◽  
Vol 59 (1) ◽  
pp. 163-169 ◽  
Author(s):  
G. J. SCOLES ◽  
L. E. EVANS

Six inbred lines of spring rye (Secale cereale L.) and an open-pollinated cultivar of spring rye were crossed with a cytoplasmic male-sterile line of winter rye. The open-pollinated cultivar and all except one inbred line exhibited segregation for fertility restoration. Through further inbreeding, sub-lines of certain breeds were obtained which were homozygous for maintenance of sterility or for restoration of fertility. Environmental effects on the expression of fertility restoration were detected.


2015 ◽  
Vol 50 (1) ◽  
pp. 75-84
Author(s):  
A.A. Goncharenko ◽  
◽  
S.V. Krahmalev ◽  
А.V. Мakarov ◽  
S.A. Yermakov ◽  
...  

2020 ◽  
Vol 61 (4) ◽  
pp. 513-529
Author(s):  
Malgorzata Targonska-Karasek ◽  
Maja Boczkowska ◽  
Wieslaw Podyma ◽  
Małgorzata Pasnik ◽  
Maciej Niedzielski ◽  
...  

Abstract Common rye (Secale cereale L.) is one of the most important cereals in Europe. Nevertheless, its germplasm collections are among the least numerous compared with cereals. There are only about 27,000 Secale accessions in 70 gene banks around the world. Despite extensive research on the molecular characterization of genetic resources, only a fraction of this collection has been described. The main objective of the presented study was to perform genotypic and phenotypic characterization of an obsolete gene pool represented by 100 accessions originated from 28 countries around the world and preserved in the gene bank of the Polish Academy of Sciences Botanical Garden – Center for Biological Diversity Conservation in Powsin. Genetic analysis using simple sequence repeat markers showed that the obsolete gene pool is relatively large. This indicates that different sources of variability were used in breeding programs. However, the genetic variation is in no way related to the place of origin. Despite the great differences in the genetic make-up, the collection showed a broadly common phenotype. This could result in a low level of interest among breeders in the stored germplasm, undervalued as a source of important but not easily observable traits, e.g., high disease resistance, which was found in some accessions.


Euphytica ◽  
2005 ◽  
Vol 146 (1-2) ◽  
pp. 109-116 ◽  
Author(s):  
Hanna Bolibok ◽  
Monika Rakoczy-Trojanowska ◽  
Aneta Hromada ◽  
Robert Pietrzykowski

1979 ◽  
Vol 21 (3) ◽  
pp. 417-422 ◽  
Author(s):  
G. J. Scoles ◽  
L. E. Evans

Three inbred lines of rye (Secale cereale L.) known to be capable of restoring fertility to a cytoplasmic male-sterile line were crossed with the sterile line. The proportions of male fertile, partially male fertile and male sterile plants in F2 and backcross progenies indicated that three dominant restorer genes were present in each line. These were designated Rf1, Rf2 and Rf3, their relative expressivity was Rf1>Rf2>Rf3. Expressivity was dependent upon environment. Partial fertility occurred when certain genotypes carried two of the three alleles as dominant, but was dependent upon genotype and environment.


1982 ◽  
Vol 143 (4) ◽  
pp. 486-490 ◽  
Author(s):  
Marilyn Griffith ◽  
Gregory N. Brown

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