Linked Life Data

18344527

Source:http://linkedlifedata.com/resource/pubmed/id/18344527

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2008-6-13
pubmed:abstractText
In species with high gene flow and consequent low interpopulation differentiation over wide geographic ranges, differential gene expression along ecological gradients often reveals adaptive significance. We investigated potential differences in protein expression between Picea abies ecotypes adapted to contrasting altitude conditions. Protein expression patterns were compared between needles and roots of 2-month-old P. abies seedlings by means of 2-dimensional electrophoresis. Proteins exhibiting differential expression between the 2 ecotypes were analyzed by tandem mass spectrometry. A total of 19 proteins exhibited qualitative or quantitative polymorphism between the 2 populations. These proteins exhibited organ-specific expression, and the level of interpopulation protein polymorphism was organ dependent. Among differentially expressed proteins, we identified proteins involved in photosynthesis, photorespiration, root tracheary element differentiation, and transmitochondrial membrane transport. Our results show that P. abies seedlings from locally adapted ecotypes exhibit consistent differences in protein expression. The expression polymorphism of some of these proteins has potential adaptive significance.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1465-7333
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
99
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
364-75
pubmed:meshHeading
pubmed:articleTitle
Protein polymorphism between 2 Picea abies populations revealed by 2-dimensional gel electrophoresis and tandem mass spectrometry.
pubmed:affiliation
Section of Forest Genetics, Technische Universität München, Am Hochanger 13, D-85354 Freising-Weihenstephan, Germany. valcu@wzw.tum.de
pubmed:publicationType
Journal Article, Comparative Study