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Genetics. Apr 1994; 136(4): 1435–1446.
PMCID: PMC1205922

Analysis of a Detailed Genetic Linkage Map of Lactuca Sativa (Lettuce) Constructed from RFLP and Rapd Markers

Abstract

A detailed genetic map has been constructed from the F(2) population of a single intraspecific cross of Lactuca sativa (n = 9). It comprises 319 loci, including 152 restriction fragment length polymorphism (RFLP), 130 random amplified polymorphic DNA (RAPD), 7 isozyme, 19 disease resistance, and 11 morphological markers. Thirteen major, four minor linkage groups and several unlinked markers are identified for this genome which is estimated to be approximately 1950 cM. RFLP and RAPD markers show similar distributions throughout the genome and identified similar levels of polymorphism. RAPD loci were much quicker to identify but more difficult to order. Procedures for generating accurate genetic maps and their limitations are described.

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Selected References

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