Brief communication. Fifty microsatellite markers for Japanese quail

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Abstract
A Japanese quail genomic library enriched for (CA/GT)n simple sequence was screened and positive clones were sequenced. Fifty original microsatellite sequences were isolated that consisted mainly of perfect repeats of the dinucleotide (CA/GT)n motif and a corresponding number of polymerase chain reaction (PCR) primer pairs complementary to unique DNA sequences flanking the microsatellite repeats were designed to detect the repeats. Forty-six percent (23 of 50) of the markers revealed polymorphism in two unrelated quail individuals (one male and one female) randomly sampled from a population of wild quail origin. All 50 primer pairs were tested in the PCR for their ability to amplify chicken genomic DNA. Amplification products were obtained for 14 (28.0%) of the markers at the annealing temperature optimized for quail. These results provide an opportunity to begin characterizing the quail genome for the development of a genetic map for this economically valuable species and the eventual construction of a comparative genetic map in Phasianidae, which comprises a number of agriculturally important species of poultry.

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