Allelopathy, DIMBOA production and genetic variability in accessions of Triticum speltoides

Quader, Motiul, Daggard, Grant, Barrow, Russell, Walker, Steven and Sutherland, Mark W. (2001) Allelopathy, DIMBOA production and genetic variability in accessions of Triticum speltoides. Journal of Chemical Ecology, 27 4: 747-760.


Author Quader, Motiul
Daggard, Grant
Barrow, Russell
Walker, Steven
Sutherland, Mark W.
Title Allelopathy, DIMBOA production and genetic variability in accessions of Triticum speltoides
Formatted title Allelopathy, DIMBOA production and genetic variability in accessions of Triticum speltoides
Journal name Journal of Chemical Ecology   Check publisher's open access policy
ISSN 0098-0331
1573-1561
Publication date 2001-04
Sub-type Article (original research)
DOI 10.1023/A:1010354019573
Volume 27
Issue 4
Start page 747
End page 760
Total pages 14
Place of publication New York, United States
Publisher Springer
Language eng
Formatted abstract A screening was conducted to study the allelopathic potential of Australian-held accessions of Triticum speltoides. Of 26 accessions, four were found to inhibit root growth in the indicator species, lettuce (Lactuca sativa). The methanol leaf extracts of these accessions significantly reduced the root length of wild oat (Avena spp.). In all but one case, alellopathic accessions contained higher amounts of DIMBOA than did nonallelopathic accessions. Since some variation in allelopathic response was detected within lines, random amplified polymorphic DNA (RAPD) markers were used to estimate genetic diversity between and within the allelopathic accessions of Triticum speltoides L. The average genetic similarity between all possible pairs of selected accessions was found to be 55% and ranged from 44% to 88%. Comparison of DNA extracted from different single seedlings within the same accession revealed significant intraaccession genetic diversity (4-24%), although this was much less than that observed between accessions tested. This intraaccession diversity has significant implications for the selection of T. speltoides accessions in breeding or screening programs.
Keyword Allelopathy
Wheat
RAPD
Genetic diversity
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Queensland Alliance for Agriculture and Food Innovation
 
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