Combining ability among male sterile two-type and restorer lines of Zinnia elegans and implications for the breeding of this ornamental species |
| |
| Authors: | XueYuan Lou TingTing Lu MaoJuan Li RuiHua Pang YaoMei Ye ManZhu Bao |
| |
| Institution: | 1. Structural Chemistry Program, Eskitis Institute, Griffith University, Brisbane, Queensland, Australia;2. Centre for Biodiscovery and Molecular Development of Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Queensland, Australia;3. Université Lyon 1, Villeurbanne cedex, and Laboratoire Chimie et Biologie des Membranes et des Nanoobjets, Université Bordeaux, CBMN, UMR 5248, 33600 Pessac, France;4. Institute for Structural Biology, School of Biological Sciences, The University of Edinburgh, Scotland, UK;5. School of Veterinary Science, The University of Queensland, Gatton, Queensland, Australia;6. Queensland Institute of Medical Research, Herston, Queensland, Australia;7. Biology Division, California Institute of Technology, Pasadena, CA, USA;8. Faculty of Veterinary Science, The University of Melbourne, Parkville, Victoria, Australia;1. McGill School of Environment and Department of Anthropology, McGill University, Montreal, Quebec H3A 2T7, Canada;2. Wildlife Conservation Society, Bronx, NY, USA;3. Department of Geography, McGill University, Montreal, Quebec, Canada;4. Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, WI, USA;5. Department of Anthropology, Hunter College of the City University of New York, and New York Consortium in Evolutionary Primatology, 695 Park Avenue, New York, NY 10065, USA;1. 324 Richardson Hall, College of Forestry, Oregon State University, Corvallis, OR 97333, United States;2. 3000 ALS Hall, College of Agriculture and Life Science, Oregon State University, Corvallis, OR 97333, United States;1. City of Boulder Open Space and Mountain Parks, 66 S. Cherryvale Road, Boulder, CO 80303, USA;2. US Geological Survey Fort Collins Science Center, 2150 Centre Avenue, Building C, Fort Collins, CO 80526, USA;3. Boulder County Parks and Open Space, 5201 Saint Vrain Road, Longmont, CO 80503, USA;1. Institute of Economic Botany, The New York Botanical Garden, Bronx, NY 10458, United States;2. Forestry Science Research Center, National Agriculture and Forestry Research Institute (NAFRI), P.O. Box 7174, Vientiane, Lao Democratic People’s Republic;3. WWF-Cambodia, 21, St. 322, Boeung Keng Kang I, Phnom Penh, Cambodia;4. WWF-Cambodia, 21, St. 322, Boeung Keng Kang I, P.O. Box 2467, Phnom Penh, Cambodia |
| |
| Abstract: | Nineteen parental lines including five male sterile A-lines (AH002A, AH003A, AH209A, S5001A, J16A) and fourteen restorers (A1-GH, A3, S5, J6, J7N, J7J, J8, J9, J10, J11, J12, J13, J14, J17) were crossed using the North Carolina II statistical method. Studies of combining ability and heritability were conducted on selected parents along with their seventy F1 hybrids for main ornamental traits. Plant height, crown size and length of node had obvious additive genetic effects, high (>0.50) broad sense heritability and high narrow sense heritability (length of node was medium). Pedicel length showed approximately equivalent maternal and paternal additive genetic effects, high broad sense heritability and medium (0.30–0.50) narrow sense heritability. Number of whorls of ray florets across capitulum and number of branches were able to take advantage of heterosis. The relationship between general combining ability and specific combining ability in Zinnia elegans depended on materials and traits. Male sterile two-type line was pivotal in the hybridization breeding of Z. elegans. S5001A, AH002A and A1-GH, A3, J14 which performed high negative GCA effects in PH, PL, LN and type I in PH, PL, NW, LN were ideal female and male parents of potted flowering plants; AH209A, J16A and S5, J10, J17 which displayed positive GCA effects and almost type I in PH, PL, LN were ideal female and male parents of cut flowers, respectively. For potted flowering plants, AH002A × J17, AH209A × A1-GH and S5001A × J6 with high negative SCA effects in PH, PL and LN were the most promising combinations, AH002A × S5, AH003A × A3 and J16A × J6 were the subprime combinations; for cut flowers, AH209A × S5, AH209A × J17 and J16A × J17 with high positive SCA effects in PH, PL and LN were the primary combinations, AH209A × J9 and S5001A × J10 were the secondary combinations. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
