Results 161 to 170 of about 2,877 (225)

Somaclonal variation in rye

Mutation Research Letters, 1993
We studied the genetic variation generated during in vitro culture of rye Secale cereale L. We analyzed the progenies of four generations of the plants regenerated from immature embryo cultures. A high frequency of mutant plants was observed, 50.75%, this frequency was genotype dependent.
R, Linacero, A M, Vázquez
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Heritable somaclonal variation in wheat

Theoretical and Applied Genetics, 1984
Efficient tissue culture and regeneration methods were established using immature wheat embryos as expiants. Genotype differences in culturability were evident, and from the ten accessions most amenable to culture, a total of 2,846 plants were regenerated.
P J, Larkin, S A, Ryan, R I, Brettell, W R, Scowcroft   +3 more
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Somaclonal Variation

2017
Somaclonal variation is defined as genetic or epigenetic changes that arise in vitro between clonal regenerants and their corresponding donor plants. The genetic changes are cytogenetic abnormalities and alterations to specific sequences of DNA; epigenetic changes are alterations of gene expression without changes to DNA sequences. Somaclonal variation,
Leva A, Rinaldi LMR
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Somaclonal variation in potato: a karyotypic evaluation

Acta Botanica Neerlandica, 1990
The data on somaclonal variation in potato are reviewed and discussed from a karyological point of view. Potato species are polysomatic. This pre‐existing genetic variation is introduced into in‐vitro cultures. Cultures of protoplasts, cell suspensions and calli show a high degree of nuclear instability leading to polyploidy, aneuploidy and structural ...
Pijnacker, L. P., Sree Ramulu, K.
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Somaclonal variation within poplar

Plant Cell, Tissue and Organ Culture, 1993
One thousand and ninety-two poplars were regenerated in vitro from callus of 13 poplar clones representing the Leuce, Aigeiros and Tacamahaca sections. At lest 44 of the regenerants differed in some way from the original clones. Somaclonal variation occurred more frequently in poplars of the Leuce section (8%) than in those of the Aigeiros or ...
Antonetti, P.L.E., Pinon, Jean
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Somaclonal Variation in Nicotiana sylvestris

1990
Nicotiana sylvestris is a diploid species (2n = 24) from the Solanaceae family, native of the Andean foothills of northwestern Argentina, where it grows from 500 to 1600 m, generally in moist woods, but also on red silt and sandy banks. In 1899, Spegazzini and Comes described it as “a robust plant of the aspect of cultivated tobacco” (cited by ...
Prat, D., de Paepe, R., Li, X.Q.
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Somaclonal Variation in Date Palm

2011
The exploration of somaclonal variation is an approach that could provide date palm breeding programs with new genotypes. Naturally occurring or induced variants may have superior agronomic quality and/or enhanced performance but could also harbor new traits such as tolerance to drought and salinity or resistance to major diseases i.e. bayoud.
A. El Hadrami, F. Daayf, S. Elshibli, S. M. Jain, I. El Hadrami   +4 more
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Somaclonal Variation in Sorghum

1996
Sorghum, Sorghum bicolor (L.) Moench (2n = 20), is the world’s fifth most important cereal crop. It is known under a variety of names and has been variously classified. Harlan and de Wet (1972) simply classified cultivated sorghum into five basic races (bicolor, guinea, caudatum, kafir, and durra) and ten intermediate races from combinations between ...
T. Cai, L. G. Butler
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Somaclonal Variation in Cucurbits

1990
Cucurbits were among the first plants used by man, and the bottle gourd may be the only plant known in both the New and Old Worlds in early prehistoric times. Species of Cucurbita were major crops in the agriculture of the Aztec, Inca, and Mayan civilizations in Central and South America.
V. Moreno, L. A. Roig
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SOMACLONAL AND GAMETOCLONAL VARIATION

American Journal of Botany, 1984
For several years it has been recognized that introduction of plant cells into culture results in genetic changes. These genetic alterations have been recovered in the plants regenerated from cell cultures. More recently it has been recognized that this method of introducing genetic changes into crop plants could be used to develop new breeding lines ...
D. A. Evans, W. R. Sharp, H. P. Medina‐Filho   +2 more
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