Skip navigation
Skip navigation

Population structure of the rice sheath blight pathogen Rhizoctonia solani AG-1 IA from India

Linde, Celeste; Zala, Marcello; Paulraj, R S; McDonald, Bruce A; Gnanamanickam, Sam

Description

The population structure of Rhizoctonia solani AG-1 IA causing rice sheath blight from India was evaluated for 96 isolates using seven RFLP loci. Nineteen of the isolates did not hybridise to R. solani AG-1 IA RFLP probes and rDNA analyses subsequently confirmed that they were either Ceratobasidium oryzae-sativae isolates or another Rhizoctonia sp. The population structure of the remaining 77 R. solani AG-1 IA Indian isolates was similar to that of a previously characterized Texas population....[Show more]

dc.contributor.authorLinde, Celeste
dc.contributor.authorZala, Marcello
dc.contributor.authorPaulraj, R S
dc.contributor.authorMcDonald, Bruce A
dc.contributor.authorGnanamanickam, Sam
dc.date.accessioned2015-12-13T22:36:15Z
dc.identifier.issn0929-1873
dc.identifier.urihttp://hdl.handle.net/1885/76683
dc.description.abstractThe population structure of Rhizoctonia solani AG-1 IA causing rice sheath blight from India was evaluated for 96 isolates using seven RFLP loci. Nineteen of the isolates did not hybridise to R. solani AG-1 IA RFLP probes and rDNA analyses subsequently confirmed that they were either Ceratobasidium oryzae-sativae isolates or another Rhizoctonia sp. The population structure of the remaining 77 R. solani AG-1 IA Indian isolates was similar to that of a previously characterized Texas population. Clonal dispersal of R. solani AG-1 IA in India was moderate within fields and no clones were shared among field populations. Low levels of population subdivision and small genetic distances among populations were consistent with high levels of gene flow. Frequent sexual reproduction was indicated by the fact that most populations were in Hardy-Weinberg equilibrium (HWE). The two loci (R68 and R111) that deviated significantly from HWE showed an excess of heterozygosity. Although Texas and Indian populations were geographically very distant, they exhibited only moderate population subdivision, with an F ST value of 0.193.
dc.publisherSpringer
dc.sourceEuropean Journal of Plant Pathology
dc.subjectKeywords: fungal disease; pathogen; population structure; Asia; Eastern Hemisphere; Eurasia; India; South Asia; World; Ceratorhiza oryzae-sativae; Hyphomycetes; Rhizoctonia; Thanatephorus cucumeris Ceratobasidium oryzae-sativae; Excess heterozygosity; Population genetics; rDNA analyses
dc.titlePopulation structure of the rice sheath blight pathogen Rhizoctonia solani AG-1 IA from India
dc.typeJournal article
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.citationvolume112
dc.date.issued2005
local.identifier.absfor060411 - Population, Ecological and Evolutionary Genetics
local.identifier.ariespublicationMigratedxPub5482
local.type.statusPublished Version
local.contributor.affiliationLinde, Celeste, College of Medicine, Biology and Environment, ANU
local.contributor.affiliationZala, Marcello, Swiss Federal Institute of Technology (ETH)
local.contributor.affiliationPaulraj, R S, University of Madras-Guindy campus
local.contributor.affiliationMcDonald, Bruce A, Swiss Federal Institute of Technology (ETH)
local.contributor.affiliationGnanamanickam, Sam, University of Madras-Guindy campus
local.description.embargo2037-12-31
local.bibliographicCitation.startpage113
local.bibliographicCitation.lastpage121
local.identifier.doi10.1007/s10658-005-1753-3
dc.date.updated2015-12-11T09:30:57Z
local.identifier.scopusID2-s2.0-21144457295
CollectionsANU Research Publications

Download

File Description SizeFormat Image
01_Linde_Population_structure_of_the_2005.pdf332.85 kBAdobe PDF    Request a copy


Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  19 May 2020/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator