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Production of haploids from anther culture of banana (Musa balbisiana (BB))

Assani A., Bakry F., Kerbellec F., Haïcour R., Wenzel G., Foroughi-Wehr B.. 2003. Plant Cell Reports, 21 (6) : p. 511-516.

We report here, for the first time, the production of haploid plants of banana Musa balbisiana (BB). Callus was induced from anthers in which the majority of the microspores were at the uninucleate stage. The frequency of callus induction was 77%. Callus proliferation usually preceded embryo formation. About 8% of the anthers developed androgenic embryos. Of the 147 plantlets obtained, 41 were haploids (n=x=11). The frequency of haploid production depended on genotypes used: 18 haploid plants were produced from genotype 'Pisang klutuk', 12 from 'Pisang batu', seven from 'Pisang klutuk wulung' and four from 'Tani'. The frequency of regeneration was 1.1%, which was based on the total number of anthers cultured. Diploid plants (2n=2x=22) were also observed in the regenerated plants. The haploid banana plants that were developed will be important material for the improvement of banana through breeding programmes. (Résumé d'auteur)

Mots-clés : amélioration des plantes; nombre chromosomique; régénération in vitro; androgénèse; culture d'anthère; haploïdie; musa balbisiana; régénération de plante

Thématique : Multiplication végétative des plantes; Génétique et amélioration des plantes

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