Linked Life Data

2550759

Source:http://linkedlifedata.com/resource/pubmed/id/2550759

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1989-10-26
pubmed:abstractText
The sporophytic self-incompatibility system of Brassica species is controlled by a single locus, S. Recognition of self between pollen and stigma is probably mediated by S locus-specific glycoproteins (SLSGs). We describe the isolation, from an S29 homozygote of Brassica oleracea, of two different cDNA clones for transcripts which are equally abundant in stigmas competent for self-incompatibility and each of which is homologous to previously reported SLSG sequences. Extensive DNA sequence divergence between the two clones precludes their cross-hybridisation and each acts as a gene-specific probe. All S genotypes appear to have a single copy of each gene but there are significantly different levels of polymorphism associated with each. The clear structural homology between the two indicates a gene duplication involving the S locus and, perhaps, related to the evolution of self-incompatibility.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0026-8925
pubmed:author
pubmed:issnType
Print
pubmed:volume
218
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
112-7
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
A homozygous S genotype of Brassica oleracea expresses two S-like genes.
pubmed:affiliation
Institute of Plant Science Research, Cambridge Laboratory, Trumpington, UK.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't