Ref ID: 10064
Ref Type: Journal
Authors: Shepherd, M., Cross, M. J., Dieters, M. J., Harding, K. J., Kain, D., and Henry, R. J.
Pub Date: 2003
Journal Name: Canadian Journal of Forest Research
Volume: 33
Issue:
Start Page: 1923
End Page: 1932
ISBN/ISSN:
Keywords: analysis/architecture/bark thickness,genetic correlations/character/component/dbh/density/detection/diameter/dry/early/F1/family/genetic/genetic map/genome/growth/height/hybrid/index/inheritance/interspecific/loci/map/out/P/parent/pine/pine hybrid/Pinus/Pinus caribaea var.hondurensis/Pinus elliotii var.elliotii/Pinus elliottii/Pinus hybrid/property/putative/QTL/QTL analysis/QTL detection/quantitative/quantitative trait loci/region/south-east Queensland/strategy/study/trait/tropical pine/value/weight/wood/wood properties/quantitative trait/genetic maps/genetic correlation/hybrid pines/forest/research/volume
Abstract: Quantitative trait loci (QTL) detection was carried out for physical wood properties and early growth traits in an interspecific hybrid between Pinus elliottii var. elliottii and P. caribaea var. hondurensis. A pseudotestcross QTL detection strategy was used to find genome regions on the genetic maps for parents of a single F1 family (n=133) that putatively influenced ring density, ring width, dry wood weight index or their average values for annual ring, early- and latewood components. A total of 78 suggestive or significant putative QTL were identified in seven major clusters, five from the P. elliottii var. elliottii parent and two from the P. caribaea var. hondurensis parent. The P. elliottii var. elliottii parent largely contributed putative QTL for diameter growth whereas the P. caribaea var. hondurensis parent largely contributed putative QTL for density and height growth. Typically, putative QTL that influenced density and ring width did not co-locate, suggesting independent inheritance of these characters. This was consistent with the lack of genetic correlation between wood density and diameter growth observed in quantitative studies in hybrid pines.
The full-text link provided is a pre-publication version of an article submitted for publication in the Canadian Journal of Forest Research in the volume stated in this citation. The publisher of the Canadian Journal of Forest Research is NRC Research Press, http://pubs.nrc-cnrc.gc.ca
Notes: Entered by Mervyn Shepherd (15/8/2002)
Reprint: In File
Program: SPF Genetic Improvement
Project: A7
Deliverable: A7-3
Confidentiality: Public
Availability: Authors;
Report: Annual Report 2002/3
Type: Article
Address: mshepher@scu.edu.au