Linked Life Data

15234999

Source:http://linkedlifedata.com/resource/pubmed/id/15234999

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
403
pubmed:dateCreated
2004-7-27
pubmed:abstractText
Annual wheat displays monocarpic senescence, but amphiploids between wheat and its wild perennial relatives in the genus Thinopyrum generally display a polycarpic, perennial growth habit. In order to determine the chromosomal basis of this phenomenon, life-history characteristics were examined using Chinese Spring wheat and a complete Thinopyrum elongatum (2n=2x=14) chromosome addition series in a Chinese Spring background. Both monosomic and disomic additions and substitutions of Th. elongatum chromosome 4E conferred a polycarpic life history to annual Chinese Spring wheat. Disomic addition lines were found to be perennial under field conditions. This is the first report of a single alien chromosome conferring a polycarpic growth habit to a monocarpic species. Chromosome 4E altered the timing of tiller initiation, such that two growth phases could be clearly identified, the first phase being indistinguishable from the growth of euploid Chinese Spring, followed by a second phase of tiller initiation after the sexual cycle of the first phase tillers was complete (post-sexual cycle regrowth).
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0022-0957
pubmed:author
pubmed:issnType
Print
pubmed:volume
55
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1715-20
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
A single chromosome addition from Thinopyrum elongatum confers a polycarpic, perennial habit to annual wheat.
pubmed:affiliation
Department of Crop and Soil Sciences, Washington State University, Pullman, Washington 99164-6420, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't