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Genetics. Nov 1995; 141(3): 1147–1162.
PMCID: PMC1206837

An Introgression Line Population of Lycopersicon Pennellii in the Cultivated Tomato Enables the Identification and Fine Mapping of Yield-Associated Qtl

Abstract

Methodologies for mapping of genes underlying quantitative traits have advanced considerably but have not been accompanied by a parallel development of new population structures. We present a novel population consisting of 50 introgression lines (ILs) originating from a cross between the green-fruited species Lycopersicon pennellii and the cultivated tomato (cv M82). Each of the lines contains a single homozygous restriction fragment length polymorphism-defined L. pennellii chromosome segment, and together the lines provide complete coverage of the genome and a set of lines nearly isogenic to M82. A field trial of the ILs and their hybrids revealed at least 23 quantitative trait loci (QTL) for total soluble solids content and 18 for fruit mass; these estimates are twice as high as previously reported estimates based on traditional mapping populations. For finer mapping of a QTL affecting fruit mass, the introgressed segment was recombined into smaller fragments that allowed the identification of three linked loci. At least 16 QTL for plant weight, 22 for percentage green fruit weight, 11 for total yield and 14 for total soluble solids yield were identified. Gene action for fruit and plant characteristics was mainly additive, while overdominance (or pseudo-overdominance) of wild species introgressions was detected for yield.

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Selected References

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  • Causse MA, Fulton TM, Cho YG, Ahn SN, Chunwongse J, Wu K, Xiao J, Yu Z, Ronald PC, Harrington SE, et al. Saturated molecular map of the rice genome based on an interspecific backcross population. Genetics. 1994 Dec;138(4):1251–1274. [PMC free article] [PubMed]
  • Doebley J, Stec A. Genetic analysis of the morphological differences between maize and teosinte. Genetics. 1991 Sep;129(1):285–295. [PMC free article] [PubMed]
  • Fatokun CA, Menancio-Hautea DI, Danesh D, Young ND. Evidence for orthologous seed weight genes in cowpea and mung bean based on RFLP mapping. Genetics. 1992 Nov;132(3):841–846. [PMC free article] [PubMed]
  • Keim P, Diers BW, Olson TC, Shoemaker RC. RFLP mapping in soybean: association between marker loci and variation in quantitative traits. Genetics. 1990 Nov;126(3):735–742. [PMC free article] [PubMed]
  • Paterson AH, Lander ES, Hewitt JD, Peterson S, Lincoln SE, Tanksley SD. Resolution of quantitative traits into Mendelian factors by using a complete linkage map of restriction fragment length polymorphisms. Nature. 1988 Oct 20;335(6192):721–726. [PubMed]
  • Paterson AH, DeVerna JW, Lanini B, Tanksley SD. Fine mapping of quantitative trait loci using selected overlapping recombinant chromosomes, in an interspecies cross of tomato. Genetics. 1990 Mar;124(3):735–742. [PMC free article] [PubMed]
  • Paterson AH, Damon S, Hewitt JD, Zamir D, Rabinowitch HD, Lincoln SE, Lander ES, Tanksley SD. Mendelian factors underlying quantitative traits in tomato: comparison across species, generations, and environments. Genetics. 1991 Jan;127(1):181–197. [PMC free article] [PubMed]
  • Rick CM. Controlled Introgression of Chromosomes of SOLANUM PENNELLII into LYCOPERSICON ESCULENTUM: Segregation and Recombination. Genetics. 1969 Aug;62(4):753–768. [PMC free article] [PubMed]
  • Segal G, Sarfatti M, Schaffer MA, Ori N, Zamir D, Fluhr R. Correlation of genetic and physical structure in the region surrounding the I2 Fusarium oxysporum resistance locus in tomato. Mol Gen Genet. 1992 Jan;231(2):179–185. [PubMed]
  • Stuber CW, Lincoln SE, Wolff DW, Helentjaris T, Lander ES. Identification of genetic factors contributing to heterosis in a hybrid from two elite maize inbred lines using molecular markers. Genetics. 1992 Nov;132(3):823–839. [PMC free article] [PubMed]
  • Tanksley SD, Ganal MW, Prince JP, de Vicente MC, Bonierbale MW, Broun P, Fulton TM, Giovannoni JJ, Grandillo S, Martin GB, et al. High density molecular linkage maps of the tomato and potato genomes. Genetics. 1992 Dec;132(4):1141–1160. [PMC free article] [PubMed]
  • Wehrhahn C, Allard RW. The Detection and Measurement of the Effects of Individual Genes Involved in the Inheritance of a Quantitative Character in Wheat. Genetics. 1965 Jan;51(1):109–119. [PMC free article] [PubMed]

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