Ref ID: 9712
Ref Type: Journal
Authors: Lopez, G. A., Potts, B. M., Vaillancourt, R. E., and Apiolaza, L. A.
Pub Date: 2003
Journal Name: Canadian Journal of Forest Research
Volume: 33
Issue:
Start Page: 2108
End Page: 2115
ISBN/ISSN:
Keywords: accounting/chloroplast/choice/cross/deployment/diallel/early/effect/eucalypt/Eucalyptus/Eucalyptus globulus/field/genetic/genetic parameters/genetics/germination/growth/impact/interaction/Labill/maternal/maternal effects/mating/nuclear/nursery/organelle DNA/parameter/parent/program/race/rate/seed/seed weight/seedling/seeds/species/study/Tasmania/trial/variation/weight
Abstract: Maternal and non-maternal reciprocal effects were compared to nuclear genetic and carry-over effects using a diallel mating amongst eight Eucalyptus globulus Labill. wild parents from two races. Seed weight exhibited a significant maternal effect increasing seed germinative capacity but not germination rate. After accounting for variation in seed weight, both germinative capacity and germination rate exhibited significant reciprocal effects but these were non-maternal in origin. Rapid germination and large seeds resulted in significantly larger seedlings in the nursery, but these carry-over effects diminished with age. However, genetic interactions between the parents at the race level increased with age and were significant after two years in field trials. Such reciprocal effects could bias genetic parameters and impact on the choice of cross direction in deployment programs. These reciprocal effects may be due to cyto-nuclear interaction. The parents in this study differed in their chloroplast haplotypes and this is the first suggestion for cyto-nuclear interactions affecting growth in a eucalypts species
Notes: Entered by Brad Potts (17/4/2002)
Reprint: Not in File
Program: SPF Genetic Improvement
Project: A1
Deliverable: A1-1
Confidentiality: Public
Availability: Authors;
Report: Annual Report 2002/3; Annual Report 2003/4
Type: Article
Address: B.M.Potts@utas.edu.au