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Somaclonal variation in clonal crops: containing the bad, exploring the good.
Mutation breeding, genetic diversity and crop adaptation to climate change, 2021Somaclonal variation describes random cellular changes in plants regenerated through tissue culture. It occurs in certain crops that undergo micropropagation and has been recorded in different explant sources, from leaves and shoots to meristems and ...
N. Roux +7 more
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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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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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Plant Cell, Tissue and Organ Culture, 2016 Somaclonal variation is a major concern to many applications of plant cell and tissue culture techniques, yet it could be a useful source of variation for plant genetic improvement.
Zhe Cao, Xiaodong Cai, Zhanao Deng
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Somaclonal variation in potato: a karyotypic evaluation
Acta Botanica Neerlandica, 1990The 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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Heritable somaclonal variation in wheat
Theoretical and Applied Genetics, 1984Efficient 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 +3 more
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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 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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Applications of Somaclonal Variation
Nature Biotechnology, 1986While recombinant DNA techniques offer promise for modification of crops, the relative paucity of knowledge of plant genetics and biochemistry has delayed development of recombinant DNA–based products using higher plants. However, somaclonal variation offers an opportunity to uncover the natural variability in plants and to use this genetic variability
David A. Evans, William R. Sharp
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Somaclonal Variation in Nicotiana sylvestris
1990Nicotiana 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
2011The 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 +4 more
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