Conservation of Gene Function in the Solanaceae as Revealed by Comparative Mapping of Domestication Traits in Eggplant
Open Access
- 1 August 2002
- journal article
- research article
- Published by Oxford University Press (OUP) in Genetics
- Vol. 161 (4), 1713-1726
- https://doi.org/10.1093/genetics/161.4.1713
Abstract
Quantitative trait loci (QTL) for domestication-related traits were identified in an interspecific F2 population of eggplant (Solanum linnaeanum × S. melongena). Although 62 quantitative trait loci (QTL) were identified in two locations, most of the dramatic phenotypic differences in fruit weight, shape, color, and plant prickliness that distinguish cultivated eggplant from its wild relative could be attributed to six loci with major effects. Comparison of the genomic locations of the eggplant fruit weight, fruit shape, and color QTL with the positions of similar loci in tomato, potato, and pepper revealed that 40% of the different loci have putative orthologous counterparts in at least one of these other crop species. Overall, the results suggest that domestication of the Solanaceae has been driven by mutations in a very limited number of target loci with major phenotypic effects, that selection pressures were exerted on the same loci despite the crops' independent domestications on different continents, and that the morphological diversity of these four crops can be explained by divergent mutations at these loci.Keywords
This publication has 37 references indexed in Scilit:
- Deductions about the Number, Organization, and Evolution of Genes in the Tomato Genome Based on Analysis of a Large Expressed Sequence Tag Collection and Selective Genomic SequencingPlant Cell, 2002
- Exploitation ofArabidopsis-tomato synteny to construct a high-resolution map of theovate-containing region in tomato chromosome 2Genome, 2001
- fw2.2 : A Quantitative Trait Locus Key to the Evolution of Tomato Fruit SizeScience, 2000
- Molecular and Biochemical Characterization of the Involvement of Cyclin-Dependent Kinase A during the Early Development of Tomato FruitPlant Physiology, 1999
- Identification, transmission, and cytological behavior ofSolanum lycopersicoidesDun. monosomic alien addition lines in tomato (Lycopersicon esculentumMill.)Genome, 1998
- The evolution of apical dominance in maizeNature, 1997
- Genetic Control of the Domestication Syndrome in Common BeanCrop Science, 1996
- Convergent Domestication of Cereal Crops by Independent Mutations at Corresponding Genetic LociScience, 1995
- The inheritance of anthocyanin pigmentation in potato (Solanum tuberosum L.) and mapping of tuber skin colour loci using RFLPsHeredity, 1994
- Linkage groups in the tomatoJournal of Genetics, 1934