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Paper Information

Journal:   ROSTANIHA   2003 , Volume 4 , Number 1-2; Page(s) 29 To 54.
 
Paper: 

A REVISION OF PLANT-ASSOCIATED VERTICILLIUM SPECIES

 
 
Author(s):  ZARE R.*
 
* DEPARTMENT OF BOTANY, PLANT PESTS & DISEASES RESEARCH INSTITUTE, TEHRAN 19395, IRAN
 
Abstract: 
Molecular approaches were used to re-evaluate the morphological criteria used to identify plant-associated Verticillium species. ITS-RFLPs divided the 31 studied strains of seven Verticillium species, (including the type species V. luteo-album) into four clusters. Cluster one comprised strains of the type species, V.oleo-album, cluster two V albo-atrum, V. dahliae, V. nubilum and I! tricorpus; cluster three comprised strains of V. theobromae and cluster four comprised strains of V nigrescens. b-tubulin gene RFLPs offered a higher degree of resolution, distinguishing all seven species from each other. The highest degree of resolution was obtained from mitochondrial DNA-RFLPs that divided strains of V theobromae and V. nigrescens into infraspecific groups. The  b- tubulin gene digested by Hae III offers a reliable way to separate the two economically important and controversial species V. albo-atrum and V dahliae.
 
Keyword(s):  VERTICILLIUM, MOLECULAR STUDIES, TAXONOMY
 
References: 
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