TY - JOUR
T1 - Comparative study of genetic diversity and pathogenicity among populations of Verticillium dahliae from cotton in Spain and Israel
AU - Korolev, Nadia
AU - Pérez-Artés, Encarnación
AU - Bejarano-Alcázar, José
AU - Rodríguez-Jurado, Dolores
AU - Katan, Jaacov
AU - Katan, Talma
AU - Jiménez-Díaz, Rafael M.
PY - 2001
Y1 - 2001
N2 - Genetic diversity and phenotypic diversity in Verticillium dahliae populations on cotton were studied among 62 isolates from Spain and 49 isolates from Israel, using vegetative compatibility grouping (VCG), virulence and molecular assays. In Spain, defoliating V dahliae isolates (D pathotype) belong to VCG1, and non-defoliating isolates (ND) belong to VCG2A (often associated with tomato) and VCG4B (often associated with potato). The D pathotype was not identified in Israel. The ND pathotype in Israel is comprised of VCG2B and VCG4B. Isolates in VCG2B and VCG4B ranged in virulence from weakly virulent to highly virulent. The highly virulent isolates induced either partial defoliation or no defoliation. Virulence characteristics varied with inoculation method and cotton cultivar. Highly virulent isolates from Israel were as virulent as Disolates from Spain under conditions conducive to severe disease. The D pathotype is pathologically and genetically homogeneous, whereas the ND pathotype is heterogeneous with respect to virulence, VCG, and molecular markers based on single-primer RAPD and on PCR primer pairs.
AB - Genetic diversity and phenotypic diversity in Verticillium dahliae populations on cotton were studied among 62 isolates from Spain and 49 isolates from Israel, using vegetative compatibility grouping (VCG), virulence and molecular assays. In Spain, defoliating V dahliae isolates (D pathotype) belong to VCG1, and non-defoliating isolates (ND) belong to VCG2A (often associated with tomato) and VCG4B (often associated with potato). The D pathotype was not identified in Israel. The ND pathotype in Israel is comprised of VCG2B and VCG4B. Isolates in VCG2B and VCG4B ranged in virulence from weakly virulent to highly virulent. The highly virulent isolates induced either partial defoliation or no defoliation. Virulence characteristics varied with inoculation method and cotton cultivar. Highly virulent isolates from Israel were as virulent as Disolates from Spain under conditions conducive to severe disease. The D pathotype is pathologically and genetically homogeneous, whereas the ND pathotype is heterogeneous with respect to virulence, VCG, and molecular markers based on single-primer RAPD and on PCR primer pairs.
KW - Gossypium hirsutum
KW - Molecular markers
KW - Vegetative compatibility
KW - Verticillium wilt
KW - Virulence
UR - http://www.scopus.com/inward/record.url?scp=0034944987&partnerID=8YFLogxK
U2 - 10.1023/A:1011212426447
DO - 10.1023/A:1011212426447
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:0034944987
SN - 0929-1873
VL - 107
SP - 443
EP - 456
JO - European Journal of Plant Pathology
JF - European Journal of Plant Pathology
IS - 4
ER -