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  • 1
    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
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  • 2
    Publication Date: 2012-12-20
    Description: Bookshelf ( http://www.ncbi.nlm.nih.gov/books/ ) is a full-text electronic literature resource of books and documents in life sciences and health care at the National Center for Biotechnology Information (NCBI). Created in 1999 with a single book as an encyclopedic reference for resources such as PubMed and GenBank, it has grown to its current size of 〉1300 titles. Unlike other NCBI databases, such as GenBank and Gene, which have a strict data structure, books come in all forms; they are diverse in publication types, formats, sizes and authoring models. The Bookshelf data format is XML tagged in the NCBI Book DTD (Document Type Definition), modeled after the National Library of Medicine journal article DTDs. The book DTD has been used for systematically tagging the diverse data formats of books, a move that has set the foundation for the growth of this resource. Books at NCBI followed the route of journal articles in the PubMed Central project, using the PubMed Central architectural framework, workflows and processes. Through integration with other NCBI molecular databases, books at NCBI can be used to provide reference information for biological data and facilitate its discovery. This article describes Bookshelf at NCBI: its growth, data handling and retrieval and integration with molecular databases.
    Print ISSN: 0305-1048
    Electronic ISSN: 1362-4962
    Topics: Biology
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