New alleles of the wheat domestication gene Q reveal multiple roles in growth and reproductive development

dc.contributor.authorGreenwood, Julian
dc.contributor.authorFinnegan, E. Jean
dc.contributor.authorWatanabe, Nobuyoshi
dc.contributor.authorTrevaskis, Ben
dc.contributor.authorSwain, Steve M
dc.date.accessioned2021-08-18T04:49:15Z
dc.date.available2021-08-18T04:49:15Z
dc.date.issued2017
dc.date.updated2020-11-23T10:52:23Z
dc.description.abstractThe advantages of free threshing in wheat led to the selection of the domesticated Q allele, which is now present in almost all modern wheat varieties. Q and the pre-domestication allele, q, encode an AP2 transcription factor, with the domesticated allele conferring a free-threshing character and a subcompact (i.e. partially compact) inflorescence (spike). We demonstrate that mutations in the miR172 binding site of the Q gene are sufficient to increase transcript levels via a reduction in miRNA-dependent degradation, consistent with the conclusion that a single nucleotide polymorphism in the miRNA binding site of Q relative to q was essential in defining the modern Q allele. We describe novel gain- and loss-of-function alleles of Q and use these to define new roles for this gene in spike development. Q is required for the suppression of ‘sham ramification’, and increased Q expression can lead to the formation of ectopic florets and spikelets (specialized inflorescence branches that bear florets and grains), resulting in a deviation from the canonical spike and spikelet structures of domesticated wheat.en_AU
dc.description.sponsorshipThis work was supported by an Australian National University (ANU) University Research Scholarship and a Commonwealth Scientific and Industrial Research Organisation (CSIRO) OCE PhD Top-up Scholarshipen_AU
dc.format.mimetypeapplication/pdfen_AU
dc.identifier.issn0950-1991en_AU
dc.identifier.urihttp://hdl.handle.net/1885/244004
dc.language.isoen_AUen_AU
dc.provenancehttps://v2.sherpa.ac.uk/id/publication/14668..."The Published Version can be archived in Institutional Repository. 12 months embargo" from SHERPA/RoMEO site (as at 18/08/2021).en_AU
dc.publisherThe Company of Biologists Ltden_AU
dc.rights© 2017. Published by The Company of Biologists Ltden_AU
dc.sourceDevelopmenten_AU
dc.subjectWheaten_AU
dc.subjectSpikeen_AU
dc.subjectInflorescenceen_AU
dc.subjectAP2en_AU
dc.subjectDomesticationen_AU
dc.subjectmicroRNAen_AU
dc.titleNew alleles of the wheat domestication gene Q reveal multiple roles in growth and reproductive developmenten_AU
dc.typeJournal articleen_AU
dcterms.accessRightsOpen Accessen_AU
local.bibliographicCitation.issue11en_AU
local.bibliographicCitation.lastpage1965en_AU
local.bibliographicCitation.startpage1959en_AU
local.contributor.affiliationGreenwood, Julian, College of Science, ANUen_AU
local.contributor.affiliationFinnegan, E. Jean, CSIROen_AU
local.contributor.affiliationWatanabe, Nobuyoshi, Ibaraki Universityen_AU
local.contributor.affiliationTrevaskis , Ben , CSIRO, Division of Plant Industryen_AU
local.contributor.affiliationSwain, Steve M , CSIRO Commonwealth Scientific and Industrial Research Organisation Plant Industryen_AU
local.contributor.authoremailu4525299@anu.edu.auen_AU
local.contributor.authoruidGreenwood, Julian, u4525299en_AU
local.description.notesImported from ARIESen_AU
local.identifier.absfor100105 - Genetically Modified Field Crops and Pastureen_AU
local.identifier.ariespublicationa383154xPUB6441en_AU
local.identifier.citationvolume144en_AU
local.identifier.doi10.1242/dev.146407en_AU
local.identifier.scopusID2-s2.0-85020111487
local.identifier.thomsonID000402276800007
local.identifier.uidSubmittedBya383154en_AU
local.publisher.urlhttp://dev.biologists.org/en_AU
local.type.statusPublished Versionen_AU

Downloads

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
01_Greenwood_New_alleles_of_the_wheat_2017.pdf
Size:
2.17 MB
Format:
Adobe Portable Document Format
Back to topicon-arrow-up-solid
 
APRU
IARU
 
edX
Group of Eight Member

Acknowledgement of Country

The Australian National University acknowledges, celebrates and pays our respects to the Ngunnawal and Ngambri people of the Canberra region and to all First Nations Australians on whose traditional lands we meet and work, and whose cultures are among the oldest continuing cultures in human history.


Contact ANUCopyrightDisclaimerPrivacyFreedom of Information

+61 2 6125 5111 The Australian National University, Canberra

TEQSA Provider ID: PRV12002 (Australian University) CRICOS Provider Code: 00120C ABN: 52 234 063 906