Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2009-10-27
pubmed:abstractText
Alternation of generations underpins all plant life histories and is held to possess important adaptive features. A wide range of data have accumulated over the past century which suggest that alternation from sporophyte to gametophyte in angiosperms includes a significant phase of 'informational reprogramming', leaving the founder cells of the gametophyte developmentally uncommitted. This review attempts to bring together results from these historic studies with more recent data on molecular and epigenetic events which accompany alternation, gametophyte development and gametogenesis in angiosperms. It is striking that most members of the other principal group of multicellular eukaryotes--the animals--have a completely different a life history: animals generate their gametes directly from diploid germlines, often set aside early in development. Nevertheless, a comparison between animal germlines and angiosperm gametophyte development reveals a number of surprising similarities at the cytological and molecular levels. This difference in life history but similarity in developmental process is reviewed in the context of the very different life strategies adopted by plants and animals, and particularly the fact that plants do not set aside diploid germlines early in development.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
1469-185X
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
84
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
589-615
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Bridging the generation gap: flowering plant gametophytes and animal germlines reveal unexpected similarities.
pubmed:affiliation
Department of Plant Sciences, South Parks Road. Oxford, OX1 3RB, UK.
pubmed:publicationType
Journal Article, Review