Ontogeny of the Maize Shoot Apical Meristem

dc.contributor.author Takacs, Elizabeth
dc.contributor.author Nettleton, Dan
dc.contributor.author Li, Jie
dc.contributor.author Du, Chuanlong
dc.contributor.author Ponnala, Lalit
dc.contributor.author Janick-Buckner, Diane
dc.contributor.author Yu, Jianming
dc.contributor.author Muehlbauer, Gary
dc.contributor.author Schnable, Patrick
dc.contributor.author Timmermans, Marja
dc.contributor.author Sun, Qi
dc.contributor.author Nettleton, Dan
dc.contributor.author Scanlon, Michael
dc.contributor.department Statistics
dc.contributor.department Agronomy
dc.date 2019-08-25T17:17:06.000
dc.date.accessioned 2020-07-02T06:57:15Z
dc.date.available 2020-07-02T06:57:15Z
dc.date.copyright Sun Jan 01 00:00:00 UTC 2012
dc.date.issued 2012-08-01
dc.description.abstract <p>The maize (<em>Zea mays</em>) shoot apical meristem (<a href="http://www.plantcell.org/content/24/8/3219#def-1" id="x-x-x-xref-def-1-1">SAM</a>) arises early in embryogenesis and functions during stem cell maintenance and organogenesis to generate all the aboveground organs of the plant. Despite its integral role in maize shoot development, little is known about the molecular mechanisms of <a href="http://www.plantcell.org/content/24/8/3219#def-1" id="x-x-x-xref-def-1-2">SAM</a> initiation. Laser microdissection of apical domains from developing maize embryos and seedlings was combined with RNA sequencing for transcriptomic analyses of <a href="http://www.plantcell.org/content/24/8/3219#def-1" id="x-x-x-xref-def-1-3">SAM</a>ontogeny. Molecular markers of key events during maize embryogenesis are described, and comprehensive transcriptional data from six stages in maize shoot development are generated. Transcriptomic profiling before and after <a href="http://www.plantcell.org/content/24/8/3219#def-1" id="x-x-x-xref-def-1-4">SAM</a> initiation indicates that organogenesis precedes stem cell maintenance in maize; analyses of the first three lateral organs elaborated from maize embryos provides insight into their homology and to the identity of the single maize cotyledon. Compared with the newly initiated <a href="http://www.plantcell.org/content/24/8/3219#def-1" id="x-x-x-xref-def-1-5">SAM</a>, the mature <a href="http://www.plantcell.org/content/24/8/3219#def-1" id="x-x-x-xref-def-1-6">SAM</a> is enriched for transcripts that function in transcriptional regulation, hormonal signaling, and transport. Comparisons of shoot meristems initiating juvenile leaves, adult leaves, and husk leaves illustrate differences in phase-specific (juvenile versus adult) and meristem-specific (<a href="http://www.plantcell.org/content/24/8/3219#def-1" id="x-x-x-xref-def-1-7">SAM</a> versus lateral meristem) transcript accumulation during maize shoot development. This study provides insight into the molecular genetics of <a href="http://www.plantcell.org/content/24/8/3219#def-1" id="x-x-x-xref-def-1-8">SAM</a>initiation and function in maize.</p>
dc.description.comments <p>This article is published as Takacs, Elizabeth M., Jie Li, Chuanlong Du, Lalit Ponnala, Diane Janick-Buckner, Jianming Yu, Gary J. Muehlbauer et al. "Ontogeny of the maize shoot apical meristem." <em>The Plant Cell </em>24, no. 8 (2012): 3219-3234. doi: <a href="https://doi.org/10.1105/tpc.112.099614" target="_blank">10.1105/tpc.112.099614</a>. Copyright American Society of Plant Biologists. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/stat_las_pubs/218/
dc.identifier.articleid 1224
dc.identifier.contextkey 14885021
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath stat_las_pubs/218
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/90530
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/stat_las_pubs/218/2012_Nettleton_OntogenyMaize.pdf|||Fri Jan 14 22:39:10 UTC 2022
dc.source.uri 10.1105/tpc.112.099614
dc.subject.disciplines Agronomy and Crop Sciences
dc.subject.disciplines Cell and Developmental Biology
dc.subject.disciplines Molecular Genetics
dc.subject.disciplines Plant Breeding and Genetics
dc.title Ontogeny of the Maize Shoot Apical Meristem
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 7d86677d-f28f-4ab1-8cf7-70378992f75b
relation.isOrgUnitOfPublication 264904d9-9e66-4169-8e11-034e537ddbca
relation.isOrgUnitOfPublication fdd5c06c-bdbe-469c-a38e-51e664fece7a
File
Original bundle
Now showing 1 - 1 of 1
Name:
2012_Nettleton_OntogenyMaize.pdf
Size:
2.22 MB
Format:
Adobe Portable Document Format
Description:
Collections