Plant fidelity in somatic embryogenesis-regenerated plants

Etienne Hervé, Guyot Romain, Beulé Thierry, Breitler Jean-Christophe, Jaligot Estelle. 2016. Plant fidelity in somatic embryogenesis-regenerated plants. In : Somatic embryogenesis: Fundamental aspects and applications. M Loyola-Vargas Victor (ed.), Ochoa-Alejo Neftalí (ed.). Cham : Springer International Publishing, 121-150. ISBN 978-3-319-33704-3

https://doi.org/10.1007/978-3-319-33705-0_8

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Résumé : This chapter reviews the literature on somaclonal variation affecting the micropropagation through somatic embryogenesis. The first part covers the following aspects i) principle, protocols and applications of somatic embryogenesis and ii) epigenetic reprogramming and changes in cell fate that underlie somatic embryogenesis. The second part addresses the problem of somaclonal variation in somatic embryogenesis by first i) assessing their impact on somatic embryo-derived plant production and ii) describing the multiple origins of somaclonal variation (chromosomal aberrations, genetic alterations, epigenetic regulations, transposable elements). The last part focuses on how managing somaclonal variation in commercial productions of SE-derived plants by covering different aspects, i) detection of undesirable phenotypes: screening out the variants, ii) strategies of avoidance and incidence limitation, iii) generation and exploitation of desirable phenotypes in plant breeding, iv) beyond the induction of stress-tolerant somaclonal variants: a plant breeder's perspective.

Mots-clés Agrovoc : variation clonale, Embryogénèse somatique, micropropagation, amélioration des plantes, régénération in vitro, physiologie végétale, génétique, phénotype, régulation physiologique

Mots-clés complémentaires : Épigénétique

Classification Agris : F02 - Multiplication végétative des plantes
F60 - Physiologie et biochimie végétale
F30 - Génétique et amélioration des plantes

Champ stratégique Cirad : Axe 1 (2014-2018) - Agriculture écologiquement intensive

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