01606naa a2200241 a 450000100080000000500110000800800410001910000150006024501000007526000090017552009530018465000110113765000180114865000210116665000160118765300310120365300270123470000220126170000140128370000160129770000130131377300380132616341021995-11-01 1995 bl uuuu u00u1 u #d1 aMULLER, R. aTracing microsatellite polymorphisms within the Nigeria population of mycosphaerella fijiensis. c1995 aMycosphaerella fijiensis Morelet, the causal agent of black leaf streak/black Sigatoka disease (BLS), seriously affects banana and plantain production worldwide. The fungal pathogen severely reduces photosynthetic leaf tissue which leads to yield losses of up to 90% (Foure, 1985). Since the first description of the disease in Fiji in the 60s (Rhodes, 1964), the pathogen has spread to many major banana growing areas and has caused epidemics on Pacific islands and in Latin America. it also appeared in Africa about 20 years ago. The intensive application offungicides to dessert banana plantations and the breeding of resistantplantain hybrids are both considered necessary for the stable production of fruit in Africa today. However, the evolution and population dynamics of M. fijiensis is not all understood, and the appearance of fungicide-resistant or resistasnce breaking fungal strains cannot be forescated though they are to be expected. aAfrica aLatin America aPapua New Guinea aPhilippines aCaracteristica morfologica aVariabilidade genetica1 aPASBERG-GAUHI, C.1 aGAUHI, F.1 aKAEMMER, D.1 aKAHL, G. tInfomusagv.4, n.9-10, p.8, 1995.