Abstract:
Ceratocystis manginecans has recently been described from Oman and Pakistan
where the fungus causes a serious wilt disease of mango. In both countries, the disease has
moved rapidly throughout mango producing areas leading to the mortality of thousands of
mango trees. The disease is associated with the infestation of the wood-boring beetle
Hypocryphalus mangiferae that consistently carries C. manginecans. The aim of this study
was to consider the population structure of C. manginecans isolated from Oman and Pakistan
using microsatellite markers and amplified fragment length polymorphisms (AFLPs).Population genetic analysis of C. manginecans isolates from diseased mango tissue and bark
beetles associated with the disease in Oman and Pakistan, showed no genetic diversity. The
apparently clonal nature of the population suggests strongly that C. manginecans was
introduced into these countries as a single event or from another clonal source.
