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Timing of the Maternal-to-Zygotic transition during Early Seed Development in Maize

Grimanelli, Daniel; Perotti, Enrico; Ramirez, Jorge; Leblanc, Olivier

Description

In animals, early embryonic development is largely dependent on maternal transcripts synthesized during gametogenesis. Recent data in plants also suggest maternal control over early seed development, but the actual timing of zygotic genome activation is unclear. Here, we analyzed the timing of the matemal-to-zygotic transition during early Zea mays seed development. We show that for 16 genes expressed during early seed development, only maternally inherited alleles are detected during 3 d after...[Show more]

dc.contributor.authorGrimanelli, Daniel
dc.contributor.authorPerotti, Enrico
dc.contributor.authorRamirez, Jorge
dc.contributor.authorLeblanc, Olivier
dc.date.accessioned2015-12-13T22:48:53Z
dc.identifier.issn1040-4651
dc.identifier.urihttp://hdl.handle.net/1885/80275
dc.description.abstractIn animals, early embryonic development is largely dependent on maternal transcripts synthesized during gametogenesis. Recent data in plants also suggest maternal control over early seed development, but the actual timing of zygotic genome activation is unclear. Here, we analyzed the timing of the matemal-to-zygotic transition during early Zea mays seed development. We show that for 16 genes expressed during early seed development, only maternally inherited alleles are detected during 3 d after fertilization in both the embryo and the endosperm. Microarray analyses of precocious embryonic development in apomictic hybrids between maize and its wild relative, Tripsacum, demonstrate that early embryo development occurs without significant quantitative changes to the transcript population in the ovule before fertilization. Precocious embryo development is also correlated with a higher proportion of polyadenylated mRNA in the ovules. Our data suggest that the maternal-to-zygotic transition occurs several days after fertilization. By contrast, novel transcription accompanies early endosperm development, indicating that different mechanisms are involved in the initiation of endosperm and embryo development.
dc.publisherAmerican Society of Plant Biologists
dc.sourceThe Plant Cell
dc.subjectKeywords: Fertilizers; Genes; RNA; Seed; Synthesis (chemical); Endosperms; Seed development; Grain (agricultural product); messenger RNA; vegetable protein; article; biosynthesis; DNA microarray; gene expression profiling; gene expression regulation; genetics; grow
dc.titleTiming of the Maternal-to-Zygotic transition during Early Seed Development in Maize
dc.typeJournal article
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.citationvolume17
dc.date.issued2005
local.identifier.absfor070601 - Horticultural Crop Growth and Development
local.identifier.ariespublicationMigratedxPub8554
local.type.statusPublished Version
local.contributor.affiliationGrimanelli, Daniel, Unite Mixte de Recherche
local.contributor.affiliationPerotti, Enrico, College of Medicine, Biology and Environment, ANU
local.contributor.affiliationRamirez, Jorge, Universidad Nacional Autonoma de Mexico
local.contributor.affiliationLeblanc, Olivier, Unite Mixte de Recherche
local.description.embargo2037-12-31
local.bibliographicCitation.startpage1061
local.bibliographicCitation.lastpage1072
local.identifier.doi10.1105/tpc.104.029819
dc.date.updated2015-12-11T10:31:21Z
local.identifier.scopusID2-s2.0-31344443105
CollectionsANU Research Publications

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