Ngo, Q. A., Moore, J. M., Baskar, R., Grossniklaus, U., Sundaresan, V. (November 2007) Arabidopsis GLAUCE promotes fertilization-independent endosperm development and expression of paternally inherited alleles. Development, 134 (22). pp. 4107-4117. ISSN 0950-1991
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Abstract
Early seed development of sexually reproducing plants requires both maternal and paternal genomes but is prominently maternally influenced. A novel gametophytic maternal-effect mutant defective in early embryo and endosperm development, glauce ( glc), has been isolated from a population of Arabidopsis Ds transposon insertion lines. The glc mutation results from a deletion at the Ds insertion site, and the molecular identity of GLC is not known. glc embryos can develop up to the globular stage in the absence of endosperm and glc central cells appear to be unfertilized. glc suppresses autonomous endosperm development observed in the fertilization-independent seed ( fis) class mutants. glc is also epistatic to mea, one of the fis class mutants, in fertilized seeds, and is essential for the biparental embryonic expression of PHE1, a repressed downstream target of MEA. In addition, maternal GLC function is required for the paternal embryonic expression of the ribosome protein gene RPS5a and the AMP deaminase gene FAC1, both of which are essential for early embryo and endosperm development. These results indicate that factors derived from the female gametophyte activate a subset of the paternal genome of fertilized seeds.
| Item Type: | Paper |
|---|---|
| Uncontrolled Keywords: | embryogenesis autonomous endosperm maternal effect paternal allele activation fertilization plant reproduction seed development MEDEA POLYCOMB GENE FEMALE GAMETOPHYTE DEVELOPMENT DNA GLYCOSYLASE DOMAIN SEED DEVELOPMENT MATERNAL CONTROL GROUP PROTEINS CELL-CYCLE THALIANA ORIGIN EMBRYOGENESIS |
| Subjects: | organism description > plant > Arabidopsis organs, tissues, organelles, cell types and functions > tissues types and functions > endosperm bioinformatics > genomics and proteomics > genetics & nucleic acid processing > DNA, RNA structure, function, modification > gametophyte bioinformatics > genomics and proteomics > genetics & nucleic acid processing > DNA, RNA structure, function, modification > transposons |
| CSHL Authors: | |
| Communities: | CSHL labs > Grossniklaus lab |
| Depositing User: | CSHL Librarian |
| Date: | November 2007 |
| Date Deposited: | 10 Nov 2011 21:53 |
| Last Modified: | 02 Apr 2018 19:53 |
| Related URLs: | |
| URI: | https://repository.cshl.edu/id/eprint/23106 |
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