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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Liang, Y. Wu, J. M. Li, Y. Z. Qin, L. Sun, Y. D. Cui, X. |
| Description | Country affiliation: China Author Affiliation: Sun YD ( Key Laboratory of Horticulture Plant Germplasm and Genetic Improvement, Ministry of Agriculture, College of Horticulture, Northwest A & F University, Yangling, Shaanxi, China.) |
| Abstract | Fruit lycopene content and total soluble solid content are important factors determining fruit quality of tomatoes; however, the dynamic quantitative trait loci (QTL) controlling lycopene and soluble solid content have not been well studied. We mapped the chromosomal regions controlling these traits in different periods in F(2:3) families derived from a cross between the domestic and wild tomato species Solanum lycopersicum and S. pimpinellifolium. Fifteen QTLs for lycopene and soluble solid content and other related traits analyzed at three different fruit ripening stages were detected with a composite interval mapping method. These QTLs explained 7-33% of the individual phenotypic variation. QTLs detected in the color-changing period were different from those detected in the other two periods. On chromosome 1, the soluble solid content QTL was located in the same region during the color-changing and full-ripe periods. On chromosome 4, the same QTL for lycopene content was found during the color-changing and full-ripe periods. The QTL for lycopene content on chromosome 4 co-located with the QTL for soluble solid content during the full-ripe period. Co-location of lycopene content QTL and soluble solid content QTLs may be due to pleiotropic effects of a single gene or a cluster of genes via physiological relationships among traits. On chromosome 9, the same two QTLs for lycopene content at two different fruit ripening periods may reflect genes controlling lycopene content that are always expressed in tomato fruit development. |
| e-ISSN | 16765680 |
| Journal | Genetics and Molecular Research |
| Issue Number | 4 |
| Volume Number | 11 |
| Language | English |
| Publisher | Fundação de Pesquisas Científicas de Ribeirão Preto |
| Publisher Date | 2012-10-11 |
| Publisher Place | Brazil |
| Access Restriction | Open |
| Subject Keyword | Carotenoids Metabolism Crosses, Genetic Genetics Lycopersicon Esculentum Quantitative Trait Loci Solanum Ascorbic Acid Chromosome Mapping Growth & Development Hydrogen-ion Concentration Organ Size Phenotype Pigmentation Quantitative Trait, Heritable Solubility Research Support, Non-u.s. Gov't Discipline Genetics Discipline Molecular Biology Discipline Bioinformatics |
| Content Type | Text |
| Resource Type | Article |
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