Asymmetric somatic plant hybridization: status and applications

Prabhu Shankar Lakshmanan, Tom Eeckhaut, Dieter Deryckere, Erik Van Bockstaele, Johan Van Huylenbroeck

Research output: Contribution to journalA2: International peer reviewed article (not A1-type)peer-review

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Abstract

To create asymmetric somatic hybrids, the genome of the so-called donor protoplast is fragmented prior to protoplast fusion. As a result, only a limited amount of the donor genome is transferred to the fusion product. This technique can circumvent some commonly observed problems related to symmetric fusion and offers a practical breeding tool for asexual hybridization. Genomes are typically fragmented by irradiation, microprotoplast production or application of metabolic inhibitors such as iodoacetamide. Irradiation and microprotoplast production fragment the nuclear genome, whereas iodoacetamide inactivates the cytoplasmic genome. It can therefore be used to introduce cytoplasmic male sterility, an important practical application. For hybrid verification and genome characterization, molecular markers and cytogenetic techniques are applied. This review highlights and discusses progress made during the last decade in spermatophytes asymmetric protoplast fusion.
Original languageEnglish
JournalAmerican Journal of Plant Sciences
Volume4
Issue number8A
Pages (from-to)1-10
Number of pages10
ISSN2158-2742
DOIs
Publication statusPublished - 2013

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