dc.contributor.author |
Simons, Joanne |
en |
dc.contributor.author |
Napoli, CA |
en |
dc.contributor.author |
Janssen, BJ |
en |
dc.contributor.author |
Plummer, KM |
en |
dc.contributor.author |
Snowden, Kimberley |
en |
dc.date.accessioned |
2015-04-30T05:25:47Z |
en |
dc.date.issued |
2007-02 |
en |
dc.identifier.citation |
Plant physiology, 2007, 143 (2), pp. 697 - 706 |
en |
dc.identifier.issn |
0032-0889 |
en |
dc.identifier.uri |
http://hdl.handle.net/2292/25358 |
en |
dc.description.abstract |
Control of branch development is a major determinant of architecture in plants. Branching in petunia (Petunia hybrida) is controlled by the DECREASED APICAL DOMINANCE (DAD) genes. Gene functions were investigated by plant grafting, morphology studies, double-mutant characterization, and gene expression analysis. Both dad1-1 and dad3 increased branching mutants can be reverted to a near-wild-type phenotype by grafting to a wild-type or a dad2 mutant root stock, indicating that both genes affect the production of a graft-transmissible substance that controls branching. Expression of the DAD1 gene in the stems of grafted plants, detected by quantitative reverse transcription-polymerase chain reaction correlates with the branching phenotype of the plants. The dad2-1 mutant cannot be reverted by grafting, indicating that this gene acts predominantly in the shoot of the plant. Double-mutant analysis indicates that the DAD2 gene acts in the same pathway as the DAD1 and DAD3 genes because the dad1-1dad2-1 and dad2-1dad3 double mutants are indistinguishable from the dad2-1 mutant. However, the dad1-1dad3 double mutant has an additive phenotype, with decreased height of the plants, delayed flowering, and reduced germination rates compared to the single mutants. This result, together with the observation that the dad1-1 and dad3 mutants cannot be reverted by grafting to each other, suggests that the DAD1 and DAD3 genes act in the same pathway, but not in a simple stepwise fashion. |
en |
dc.format.medium |
Print-Electronic |
en |
dc.language |
eng |
en |
dc.relation.ispartofseries |
Plant physiology |
en |
dc.rights |
Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from http://www.sherpa.ac.uk/romeo/issn/0032-0889/ |
en |
dc.rights.uri |
https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm |
en |
dc.subject |
Petunia |
en |
dc.subject |
Plant Stems |
en |
dc.subject |
Plant Proteins |
en |
dc.subject |
Mutation |
en |
dc.subject |
Genes, Plant |
en |
dc.subject |
Gene Expression Regulation, Plant |
en |
dc.title |
Analysis of the DECREASED APICAL DOMINANCE genes of petunia in the control of axillary branching |
en |
dc.type |
Journal Article |
en |
dc.identifier.doi |
10.1104/pp.106.087957 |
en |
pubs.issue |
2 |
en |
pubs.begin-page |
697 |
en |
pubs.volume |
143 |
en |
dc.identifier.pmid |
17158589 |
en |
pubs.end-page |
706 |
en |
dc.rights.accessrights |
http://purl.org/eprint/accessRights/RestrictedAccess |
en |
pubs.subtype |
Journal Article |
en |
pubs.subtype |
Research Support, Non-U.S. Gov't |
en |
pubs.subtype |
Article |
en |
pubs.elements-id |
396794 |
en |
pubs.org-id |
Libraries & Learning Services |
en |
pubs.org-id |
Libraries & Learning Services |
en |
pubs.org-id |
Research and Collections |
en |
pubs.org-id |
Research and Collections |
en |
pubs.org-id |
Research Services |
en |
pubs.org-id |
Research Services |
en |
dc.identifier.eissn |
1532-2548 |
en |
pubs.record-created-at-source-date |
2015-04-30 |
en |
pubs.dimensions-id |
17158589 |
en |