Open AccessHigh Genetic Diversity Among Strains of Fusarium oxysporum f. sp. vasinfectum from Cotton in Ivory Coast
Author(s) -
Abo Kouabenan,
Keith K. Klein,
Véronique Edel-Hermann,
Nadine Gautheron,
D Traore,
Christian Steinberg
Publication year - 2005
Publication title -
phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.264
H-Index - 131
eISSN - 1943-7684
pISSN - 0031-949X
DOI - 10.1094/phyto-95-1391
Subject(s) - biology , fusarium oxysporum , genetic diversity , mating type , fusarium , veterinary medicine , fusarium wilt , amplified fragment length polymorphism , botany , fungi imperfecti , ribosomal dna , ribosomal rna , genetics , phylogenetics , gene , population , medicine , demography , sociology
Seventeen isolates of Fusarium oxysporum f. sp. vasinfectum from the Ivory Coast were characterized using vegetative compatibility group (VCG), restriction fragment length polymorphism of the ribosomal inter-genic spacer region (IGS), and mating type (MAT) idiomorph, and compared with a worldwide collection of the pathogen containing all available reference strains. Some of the isolates were identical to known reference strains for all three traits, whereas others had previously unknown varieties of IGS and (possibly) VCG. One or the other MAT idiomorph was present in each of the new isolates and the reference strains. The new isolates and reference strains were grouped based upon the three traits. Strains from the Ivory Coast were found in 7 of 11 groups detected, suggesting multiple sources for Fusarium wilt in the country. Despite the presence of both MAT idiomorphs among isolates, no evidence for recombination was found.