Optimized genotyping with microsatellite markers in the fungal banana pathogen Mycosphaerella fijiensis (Mycosphaerellaceae)

Premise of the study: Large-scale population genetics studies are required to investigate the dispersal processes underlying the emergence of Mycosphaerella fi jiensis , a fungal pathogen of banana. To this end, we have developed an optimized genotyping procedure combining novel microsatellite markers and a modifi ed DNA extraction protocol. Methods and Results: Primers for tetranucleotide loci were designed directly from the recently published genome sequence of M. fijiensis. A total of 19 new polymorphic and easy-to-score markers were developed. Their use was combined with an adapted protocol for total DNA extraction starting from young lesions collected from banana leaves, thus avoiding a pathogen isolation step. Conclusions: The combination of the two technical developments presented here will permit the expansion of genotyping capacity in M. fijiensis, allowing large-scale analysis of samples from various geographic locations.

Bibliographic Details

Main Authors:	Robert, Stéphanie, Rieux, Adrien, Argout, Xavier, Carlier, Jean, Zapater, Marie-Françoise
Format:	article biblioteca
Language:	eng
Subjects:	H20 - Maladies des plantes, Musa, Mycosphaerella fijiensis, génotype, microsatellite, marqueur génétique, maladie des raies noires, http://aims.fao.org/aos/agrovoc/c_4993, http://aims.fao.org/aos/agrovoc/c_27259, http://aims.fao.org/aos/agrovoc/c_3225, http://aims.fao.org/aos/agrovoc/c_36574, http://aims.fao.org/aos/agrovoc/c_24030, http://aims.fao.org/aos/agrovoc/c_36375,
Online Access:	http://agritrop.cirad.fr/557717/ http://agritrop.cirad.fr/557717/1/document_557717.pdf
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