Journal ArticleDOI
Molecular characterisation of Fusarium oxysporum causing rot diseases in small cardamom (Elettaria cardamomum Maton)
Reads0
Chats0
TLDR
It is inferred that despite moderate variability, F. oxysporum, infecting small cardamom in Idukki district of Kerala, consists of a single clonal lineage.Abstract:
Incidence of root rot and foliar yellowing, rhizome rot, panicle wilt and stem rot diseases of small cardamom (Elettaria cardamomum Maton) are caused by Fusarium oxysporum Schlecht., and were surveyed in the high ranges of Idukki district, Kerala during 2010–2011. The diseases were noticed in different areas to varying degrees. Root rot was found to be most severe, followed by pseudostem rot, rhizome rot and panicle wilt. The Fusarium infections were prevalent throughout the year (January–December) and varied from 1.5 to 10.6%. Even though the pathogen was isolated from different plant parts, during pathogenicity studies, all the isolates could cross-infect other plant parts too. Twenty different isolates of F. oxysporum were obtained from diseased samples, and five morphologically distinct isolates were analysed with Randomly Amplified Polymorphic DNA (RAPD) markers to study the genetic variability, if any, among them. PCR amplification of total genomic DNA with random oligonucleotide primers generated u...read more
References
More filters
NTSYS-pc Numerical Taxonomy and Multivariate Analysis System, version 2.1: Owner manual
F.J. Rohlf,F Rohlf +1 more
Journal ArticleDOI
Glacial survival does not matter: RAPD phylogeography of Nordic Saxifraga oppositifolia
TL;DR: The results suggest that there has been extensive gene flow among more or less continuously distributed populations of S. oppositifolia during the Weichselian, and that the extant Nordic populations were established after massive, centripetal immigration from these genetically variable, periglacial populations.
Journal ArticleDOI
Molecular characterization of Fusarium oxysporum f. sp. ciceri causing wilt of chickpea
TL;DR: Genetic similarity between each of the isolates was calculated and results indicate that there was little genetic variability among the isolates collected from the different locations.
Journal Article
Pathogenic and molecular characterization of Indian isolates of Fusarium oxysporum f. sp. ciceris causing chickpea wilt
N. Honnareddy,Sunil C. Dubey +1 more
TL;DR: The most virulent isolate obtained from wilt sick field of IARI (MB-4C), New Delhi was distinct from others, and the existence of three new races of the pathogen in India was revealed.
Genetic characterization of Fusarium oxysporum f. sp. vasinfectum isolates by random amplification of polymorphic DNA(RAPD) and amplified fragment length polymorphism (AFLP)
TL;DR: Cluster analysis using data generated by both RAPD and AFLP markers, clearly separated F. oxysporum f.