Query (optional)   in Class  All Allele Author Colleague Collection Assembly Gene Gene Class Gene Product Germplasm Image Journal Keyword Library Locus Map Map Data Marker Pathology Polymorphism Probe Protein QTL Rearrangement Reference Sequence Species Trait Trait Study Two Point Data  

---

GrainGenes Reference Report: JCE-27-747

[Submit comment/correction]

Reference	JCE-27-747
Title	Allelopathy, DIMBOA production and genetic variability in accessions of Triticum speltoides
Journal	Journal of Chemical Ecology
Year	2001
Volume	27
Pages	747-760
Author	Quader M Daggard G Barrow R Walker S Sutherland MW
Abstract	Summary: 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
External Databases	Pubmed: 11446298
Keyword	[ Hide all but 1 of 43 ] accessions allelopathy amplified polymorphic dna avena barley bioassay breeding dimboa diversity dna genetic genetic diversity genetic similarity genetic variability growth inhibit lactuca sativa lettuce line marker methanol oat polymorphic polymorphic dna production program random amplified polymorphic dna rapd resistance root root growth root length screening seedlings selection single speltoides triticum triticum speltoides variability weed wild wild oats

GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.