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Maternal inheritance of chloroplast genome and paternal inheritance of mitochondrial genome in bananas (Musa acuminata)

✍ Scribed by Sabine Fauré; Jean-Louis Noyer; Françoise Carreel; Jean-Pierre Horry; Frédéric Bakry; Claire Lanaud

Publisher
Springer-Verlag
Year
1994
Tongue
English
Weight
564 KB
Volume
25
Category
Article
ISSN
0172-8083

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✦ Synopsis

Restriction fragment length polymorphisms (RFLPs) were used as markers to determine the transmission of cytoplasmic DNA in diploid banana crosses. Progenies from two controlled crosses were studied with heterologous cytoplasmic probes. This analysis provided evidence for a strong bias towards maternal transmission of chloroplast DNA and paternal transmission of mitochondrial DNA in Musa acuminata. These results suggest the existence of two separate mechanisms of organelle transmission and selection, but no model to explain this can be proposed at the present time. Knowledge of the organelle mode of inheritance constitutes an important point for phylogeny analyses in bananas and may offer a powerful tool to confirm hybrid origins.

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