Linked Life Data

16932881

Source:http://linkedlifedata.com/resource/pubmed/id/16932881

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2006-10-13
pubmed:abstractText
In spite of commercial use of heterosis in agriculture, the molecular basis of heterosis is poorly understood. In this study, heterosis was estimated for eight root traits in 20 wheat hybrids derived from a NC Design II mating scheme. Positive mid-parent heterosis was detected in 96 of 160 hybrid-trait combinations, and positive high-parent heterosis was detected in 79 of 160 hybrid-trait combinations. Improved differential display was used to analyze alterations in gene expression between hybrids and their parents in roots at the jointing stage. More than 990 fragments were repeatedly displayed, among which 27.52% were differentially expressed between hybrids and their parents. Four differential expression patterns were observed. Thirty differentially expressed cDNA fragments and three genes with open reading frames were cloned, and their expression patterns were confirmed by reverse-northern blot and semi-quantitative RT-PCR analysis, respectively. We concluded that these differentially expressed genes, though mostly with unknown function, could play important roles for hybrids to demonstrate heterosis in root system traits.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0040-5752
pubmed:author
pubmed:issnType
Print
pubmed:volume
113
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1283-94
pubmed:dateRevised
2008-2-15
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Heterosis in root development and differential gene expression between hybrids and their parental inbreds in wheat (Triticum aestivum L.).
pubmed:affiliation
Department of Plant Genetics and Breeding, State Key Laboratory for Agrobiotechnology, China Agricultural University, Yuanmingyuan Xilu No. 2, Beijing, 100094, China.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't