Aspergillus flavus resident in Kenya: high genetic diversity in an ancient population primarily shaped by clonal reproduction and mutation-driven evolution

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cg.authorship.typesCGIAR and advanced research instituteen
cg.contributor.affiliationUniversity of Arizonaen
cg.contributor.affiliationInternational Institute of Tropical Agricultureen
cg.contributor.crpAgriculture for Nutrition and Health
cg.contributor.crpMaize
cg.contributor.crpGrain Legumes
cg.contributor.donorBill & Melinda Gates Foundationen
cg.contributor.donorUnited States Agency for International Developmenten
cg.coverage.countryKenya
cg.coverage.iso3166-alpha2KE
cg.coverage.regionAfrica
cg.coverage.regionEastern Africa
cg.creator.identifierCharity Mutegi: 0000-0002-3188-0480
cg.creator.identifierRanajit Bandyopadhyay: 0000-0003-2422-4298
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.1016/j.funeco.2018.05.012en
cg.identifier.iitathemePLANT PRODUCTION & HEALTH
cg.isijournalISI Journalen
cg.issn1754-5048en
cg.journalFungal Ecologyen
cg.reviewStatusPeer Reviewen
cg.subject.iitaAFLATOXINen
cg.subject.iitaGENETIC IMPROVEMENTen
cg.subject.iitaPLANT HEALTHen
cg.subject.iitaPLANT PRODUCTIONen
cg.volume35en
dc.contributor.authorIslam, M.S.en
dc.contributor.authorCallicott, K.A.en
dc.contributor.authorMutegi, C.en
dc.contributor.authorBandyopadhyay, Ranajiten
dc.contributor.authorCotty, P.J.en
dc.date.accessioned2018-11-01T10:47:04Zen
dc.date.available2018-11-01T10:47:04Zen
dc.identifier.urihttps://hdl.handle.net/10568/97855
dc.titleAspergillus flavus resident in Kenya: high genetic diversity in an ancient population primarily shaped by clonal reproduction and mutation-driven evolutionen
dcterms.abstractAspergillus flavus has long been considered to be an asexual species. Although a sexual stage was recently reported for this species from in vitro studies, the amount of recombination ongoing in natural populations and the genetic distance across which meiosis occurs is largely unknown. In the current study, genetic diversity, reproduction and evolution of natural A. flavus populations endemic to Kenya were examined. A total of 2744 isolates recovered from 629 maize-field soils across southern Kenya in two consecutive seasons were characterized at 17 SSR loci, revealing high genetic diversity (9-72 alleles/locus and 2140 haplotypes). Clonal reproduction and persistence of clonal lineages predominated, with many identical haplotypes occurring in multiple soil samples and both seasons. Genetic analyses predicted three distinct lineages with linkage disequilibrium and evolutionary relationships among haplotypes within each lineage suggesting mutation-driven evolution followed by clonal reproduction. Low genetic differentiation among adjacent communities reflected frequent short distance dispersal.en
dcterms.accessRightsOpen Access
dcterms.audienceScientistsen
dcterms.bibliographicCitationIslam, M.S., Callicott, K.A., Mutegi, C., Bandyopadhyay, R. & Cotty, P.J. (2018). Aspergillus flavus resident in Kenya: high genetic diversity in an ancient population primarily shaped by clonal reproduction and mutation-driven evolution. Fungal Ecology, 35, 20-33.en
dcterms.descriptionOpen Access Articleen
dcterms.extent20-33en
dcterms.issued2018-10
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherElsevieren
dcterms.subjectaspergillus flavusen
dcterms.subjectgenetic variationen
dcterms.subjectreproductionen
dcterms.subjectevolutionen
dcterms.subjectaflatoxinsen
dcterms.subjectsimple sequence repeaten
dcterms.typeJournal Article

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