Mapping of quantitative trait loci for carotenoid pigmentation in flower tepals of Asiatic hybrid lily |
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| Institution: | 1. Faculty of Life and Environmental Science, Shimane University, Matsue, Shimane 690-8504, Japan;2. Department of Genetics and Physiology, National Institute of Floricultural Science, 2-1 Fujimoto, Tsukuba, Ibaraki 305-8519, Japan;1. Department of Agriculture, Universidade Federal de Lavras, 37200-000, Lavras, MG, Brazil;2. College of Agronomy, Universidade de Rio Verde, 75901-970, Rio Verde, GO, Brazil;3. Department of Soil Science, Universidade Federal de Lavras, 37200-000, Lavras, MG, Brazil;4. Colleges of Design, Universidade de Rio Verde, Rio Verde, 75901-970, GO, Brazil;1. Departamento de Química Biológica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina;2. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA), CONICET, Buenos Aires, Argentina;3. Área de Investigación y Desarrollo, Universidad Favaloro/CONICET, Buenos Aires, Argentina;1. Department of Chemistry, National Tsing Hua University, 101, Section 2, Kuang-Fu Rd., Hsinchu, 30013, Taiwan;2. Department of Applied Chemistry, National Chiao Tung University, 1001 University Rd., Hsinchu, 300, Taiwan;3. Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, 101, Section 2, Kuang-Fu Rd., Hsinchu, 30013, Taiwan;1. CICS-UBI—Health Sciences Research Centre, University of Beira Interior, Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal;2. CNC—Center of Neuroscience and Cell Biology, University of Coimbra, Largo Marquês de Pombal, 3004-517 Coimbra, Portugal;1. Korea Atomic Energy Research Institute, Jeollabuk-do 580-185, South Korea;2. Department of Plant Biotechnology, Chonnam National University, Gwangju 500-757, South Korea |
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| Abstract: | Flower pigmentation is one of the most important traits for ornamental plants. To clarify the genetic basis for carotenoid pigmentation in flower tepals of Asiatic hybrid lily (Lilium sp.), we evaluated the segregation of a tepal-carotenoid content among F1 plants derived from a cross between ‘Montreux’ (having a small amount of carotenoids) and ‘Connecticut King’ (having a large amount of carotenoids), and mapped genetic loci for the carotenoid pigmentation onto the molecular linkage maps of ‘Montreux’ and ‘Connecticut King’ that we constructed previously. The tepal-carotenoid content among the F1 plants showed continuous segregation, indicating that several genes are associated with this trait. Quantitative trait loci (QTL) analysis identified one QTL, qCARmon6, on the sixth linkage group of the ‘Montreux’ map. qCARmon6 explained 58.2% of the total phenotypic variation, that is, this locus had a large effect on the carotenoid accumulation. The result that qCARmon6 was mapped on the linkage group of ‘Montreux’ which has a small amount of carotenoid pigments in tepals indicates that this locus has a dominant negative effect on carotenoid pigmentation. |
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