Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1998-8-13
pubmed:databankReference
pubmed:abstractText
The Arabidopsis thaliana CONSTANS (CO) gene which promotes flowering in long days was recently isolated by chromosome walking. The mapping of QTLs controlling flowering time in Brassica species has identified genomic regions that contain homologues of the CO gene. Four genes homologous to the Arabidopsis CO gene were isolated from a pair of homoeologous loci in each of two doubled-haploid Brassica napus lines displaying different flowering times, N-o-1 and N-o-9. The four genes, BnCOa1, BnCOa9, BnCOb1 and BnCOb9, are located on linkage groups N10 and N19, and are highly similar to each other and to the Arabidopsis CO gene. Two regions of the proteins are particularly well conserved, a N-terminal region with two putative zinc fingers and a C-terminal region which may contain a nuclear localization signal. All four genes appear to be expressed in B. napus. The BnCOa1 allele was shown to complement the co-2 mutation in Arabidopsis in a dosage-dependent manner causing earlier flowering than in wild type under both long- and short-day conditions.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0167-4412
pubmed:author
pubmed:issnType
Print
pubmed:volume
37
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
763-72
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed-meshheading:9678571-Amino Acid Sequence, pubmed-meshheading:9678571-Arabidopsis, pubmed-meshheading:9678571-Arabidopsis Proteins, pubmed-meshheading:9678571-Brassica, pubmed-meshheading:9678571-Cloning, Molecular, pubmed-meshheading:9678571-Conserved Sequence, pubmed-meshheading:9678571-DNA-Binding Proteins, pubmed-meshheading:9678571-Genes, Plant, pubmed-meshheading:9678571-Genetic Complementation Test, pubmed-meshheading:9678571-Genetic Linkage, pubmed-meshheading:9678571-Molecular Sequence Data, pubmed-meshheading:9678571-Plants, Genetically Modified, pubmed-meshheading:9678571-Restriction Mapping, pubmed-meshheading:9678571-Sequence Analysis, DNA, pubmed-meshheading:9678571-Sequence Homology, Amino Acid, pubmed-meshheading:9678571-Transcription Factors, pubmed-meshheading:9678571-Zinc Fingers
pubmed:year
1998
pubmed:articleTitle
Conserved structure and function of the Arabidopsis flowering time gene CONSTANS in Brassica napus.
pubmed:affiliation
Eastern Cereal and Oilseed Research Centre, Central Experimental Farm, Ottawa, Ontario, Canada.
pubmed:publicationType
Journal Article