Linked Life Data

19203975

Source:http://linkedlifedata.com/resource/pubmed/id/19203975

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2009-3-27
pubmed:abstractText
CcGA20ox1 is a gene encoding a GA 20-oxidase, a gibberellin (GA) biosynthetic enzyme, previously isolated from the citrus hybrid Carrizo citrange (Citrus sinensis (L.) Osbeck x Poncirus trifoliata (L.) Raf.). Southern blot analysis of genomic DNA of Carrizo citrange with CcGA20ox1 suggested the presence in the hybrid of another gene encoding another GA 20-oxidase. A cDNA clone from this new gene (CcGA20ox2) was isolated using RNA from the other parent C. sinensis. CcGA20ox2 encoded a protein of 372 amino acids that showed 67.1% identity with CcGA20ox1, and its expression product catalyzed the in vitro conversion of GA12 to GA9, confirming that it corresponds to another active GA20ox. Amplification of genomic DNA and isolation of genomic clones of CcGA20ox1 and CcGA20ox2 revealed that the parental sources of these genes in the hybrid were P. trifoliata and C. sinensis, respectively. The sequences of CcGA20ox1 and CcGA20ox2 showed that both genes contained two introns, which are also conserved in GA20ox genes of other species like Arabidopsis thaliana L., Pisum sativum L. and Solanum lycopersicum L. Determination of transcript levels in the Carrizo citrange hybrid by quantitative real-time polymerase chain reaction showed that CcGA20ox1 was expressed mainly in internodes, leaves and seeds, and CcGA20ox2 in flower buds and flowers at anthesis, with the genes having similar transcript levels in young developing fruits.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0829-318X
pubmed:author
pubmed:issnType
Print
pubmed:volume
29
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
569-77
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Characterization of gibberellin 20-oxidases in the citrus hybrid Carrizo citrange.
pubmed:affiliation
Instituto de Biología Molecular y Celular de Plantas, Universidad Politécnica de Valencia-CSIC, Avda de los Naranjos s/n, 46022 Valencia, Spain.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't