Publication Date:
1998-05-09
Description:
The gametophytic maternal effect mutant medea (mea) shows aberrant growth regulation during embryogenesis in Arabidopsis thaliana. Embryos derived from mea eggs grow excessively and die during seed desiccation. Embryo lethality is independent of the paternal contribution and gene dosage. The mea phenotype is consistent with the parental conflict theory for the evolution of parent-of-origin-specific effects. MEA encodes a SET domain protein similar to Enhancer of zeste, a member of the Polycomb group. In animals, Polycomb group proteins ensure the stable inheritance of expression patterns through cell division and regulate the control of cell proliferation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grossniklaus, U -- Vielle-Calzada, J P -- Hoeppner, M A -- Gagliano, W B -- New York, N.Y. -- Science. 1998 Apr 17;280(5362):446-50.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cold Spring Harbor Laboratory, 1 Bungtown Road, Post Office Box 100, Cold Spring Harbor, NY 11724, USA. grossnik@cshl.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9545225" target="_blank"〉PubMed〈/a〉
Keywords:
Alleles
;
Amino Acid Sequence
;
Arabidopsis/*embryology/*genetics
;
*Arabidopsis Proteins
;
Cell Division
;
Cloning, Molecular
;
Crosses, Genetic
;
*Drosophila Proteins
;
Gene Dosage
;
*Gene Expression Regulation, Plant
;
Genes, Plant
;
Insect Proteins/genetics
;
Molecular Sequence Data
;
Morphogenesis
;
Mutation
;
Nuclear Proteins/chemistry/genetics
;
Plant Proteins/chemistry/*genetics/physiology
;
Polycomb Repressive Complex 1
;
Polycomb Repressive Complex 2
;
*Repressor Proteins
;
Seeds/genetics/growth & development
;
Sequence Alignment
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
