AC/GT and AG/CT microsatellite repeats in peach [Prunus persica (L) Batsch]: isolation, characterisation and cross-species amplification in Prunus (original) (raw)

Abstract

We report the sequences of 17 primer pairs of microsatellite loci, which we have cloned and sequenced from two genomic libraries of peach [Prunus persica (L) Batsch] ‘Redhaven’, enriched for AC/GT and AG/CT repeats respectively. For ten of these microsatellite loci we were able to demonstrate Mendelian inheritance in a segregating back-cross population; the remainder did not segregate. The polymorphism of the microsatellites was evaluated in a panel of ten peach genotypes, including true-to-type peaches, nectarines and one canning-peach. Fifteen microsatellites (88%) were polymorphic showing 2–4 alleles each. The mean heterozygosity, averaged over all loci, was 0.32 and significantly higher than that reported in the literature for isozymes and molecular markers, such as RFLPs and RAPDs. We have also assayed the cross-species transportability and found that ten microsatellite (59%) gave apparently correct amplification in all Prunus species surveyed, namely P. domestica (European plum), P. salicina (Japanese plum), P. armeniaca (apricot), P. dulcis (almond), P. persica var. vulgaris (peach), P. persica var. laevis (nectarine), P. avium (sweet cherry) and P. cerasus (sour cherry), with three of them also being amplified in Malus (apple). The remaining microsatellites gave less-extensive amplification. Because of their appreciable polymorphism and wide cross-species transportability, most of these new markers can be integrated into the linkage maps which are currently being constructed in peach, as well as in other stone fruit crops, such as almond, apricot, cherry and plum.

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Authors and Affiliations

  1. Dipartimento di Produzione vegetale e tecnologie agrarie, University of Udine, Via delle Scienze 208, 33100 Udine, Italy Fax: +39-432-558603 E-mail: raffaele.testolin@dpvta.uniud.it, , , , , , IT
    G. Cipriani, G. Lot, W.-G. Huang, M. T. Marrazzo, E. Peterlunger & R. Testolin

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  1. G. Cipriani
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  2. G. Lot
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  3. W.-G. Huang
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  4. M. T. Marrazzo
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  5. E. Peterlunger
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  6. R. Testolin
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Received: 3 September 1998 / Accepted: 28 November 1998

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Cipriani, G., Lot, G., Huang, WG. et al. AC/GT and AG/CT microsatellite repeats in peach [Prunus persica (L) Batsch]: isolation, characterisation and cross-species amplification in Prunus.Theor Appl Genet 99, 65–72 (1999). https://doi.org/10.1007/s001220051209

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