Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/12002
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dc.contributor.authorHaddadchi, Azadehen
dc.contributor.authorGross, Caroline Len
dc.contributor.authorFatemi, Mohammaden
dc.date.accessioned2013-02-05T15:06:00Z-
dc.date.issued2013-
dc.identifier.citationAquatic Botany, v.104, p. 153-161en
dc.identifier.issn0304-3770en
dc.identifier.urihttps://hdl.handle.net/1959.11/12002-
dc.description.abstractReproductive modes and dispersal mechanisms shape the genotypic structure of populations which in turn influences a species' capacity for successful invasion. Understanding the limitations in a species' reproductive capacity may assist with finding the best approach to control the expansion of an invasive species. To understand the founder history against the spread of 'Arundo donax', we examined genotypic variation, using Inter Simple Sequence Repeats (ISSR) markers, and we determined ploidy and fertility in 10 single (one patch) and seven multiple (spatially distinct patches) stands scattered along three river systems in southeastern Australia. No seed was detected in any plant and shriveled anthers did not produce pollen. Somatic chromosome counts identified uneven ploidy levels (2n = 7x = 84), which may be the cause of sterility in 'A. donax'. Of the 58 plants sampled we detected 38 genotypes, and genotypic variation was moderate to high within each river system (G/N = 0.485-1.000 and Simpson's D = 0.881-1.000). Three genotypes were found in more than one stand, suggesting that the invasive spread of 'A. donax' by vegetative propagules is not a rare event. Genetically distinct genotypes were detected in all single stands. Sections of the river systems that contained multiple stands of 'A. donax' revealed that each stand was a unique genotype; this may be attributable to multiple founders, somatic mutations, and/or polyploidy. Our results indicate that sterility has had little effect on retarding the dispersal of heptaploid 'A. donax' in southeastern Australia, and reproduction through vegetative fragments is an effective dispersal mechanism.en
dc.languageenen
dc.publisherElsevier BVen
dc.relation.ispartofAquatic Botanyen
dc.titleThe expansion of sterile 'Arundo donax' (Poaceae) in southeastern Australia is accompanied by genotypic variationen
dc.typeJournal Articleen
dc.identifier.doi10.1016/j.aquabot.2012.07.006en
dc.subject.keywordsConservation and Biodiversityen
local.contributor.firstnameAzadehen
local.contributor.firstnameCaroline Len
local.contributor.firstnameMohammaden
local.subject.for2008050202 Conservation and Biodiversityen
local.subject.seo2008960805 Flora, Fauna and Biodiversity at Regional or Larger Scalesen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolOffice of Faculty of Science, Ag, Business and Lawen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailahaddadc@une.edu.auen
local.profile.emailcgross@une.edu.auen
local.profile.emailmfatemi2@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20130129-134048en
local.publisher.placeNetherlandsen
local.format.startpage153en
local.format.endpage161en
local.identifier.scopusid84870302502en
local.peerreviewedYesen
local.identifier.volume104en
local.contributor.lastnameHaddadchien
local.contributor.lastnameGrossen
local.contributor.lastnameFatemien
dc.identifier.staffune-id:ahaddadcen
dc.identifier.staffune-id:cgrossen
dc.identifier.staffune-id:mfatemi2en
local.profile.orcid0000-0001-8014-1548en
local.profile.orcid0000-0001-6618-4234en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:12205en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleThe expansion of sterile 'Arundo donax' (Poaceae) in southeastern Australia is accompanied by genotypic variationen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorHaddadchi, Azadehen
local.search.authorGross, Caroline Len
local.search.authorFatemi, Mohammaden
local.uneassociationUnknownen
local.identifier.wosid000313478700019en
local.year.published2013en
local.subject.for2020410401 Conservation and biodiversityen
local.subject.seo2020180203 Coastal or estuarine biodiversityen
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