Tree Genetics & Genomes

, Volume 5, Issue 1, pp 41–51

A cherry map from the inter-specific cross Prunus avium ‘Napoleon’ × P. nipponica based on microsatellite, gene-specific and isoenzyme markers

  • J. B. Clarke
  • D. J. Sargent
  • R. I. Bošković
  • A. Belaj
  • K. R. Tobutt
Original Paper

DOI: 10.1007/s11295-008-0166-9

Cite this article as:
Clarke, J.B., Sargent, D.J., Bošković, R.I. et al. Tree Genetics & Genomes (2009) 5: 41. doi:10.1007/s11295-008-0166-9

Abstract

One hundred and sixty microsatellite (simple sequence repeat (SSR)) and six gene-specific markers revealing 174 loci were scored in 94 seedlings from the inter-specific cross of Prunus avium ‘Napoleon’ × Prunus nipponica accession F1292. The co-segregation data from these markers were used to construct a linkage map for cherry which spanned 680 cM over eight linkage groups with an average marker spacing of 3.9 cM per marker and just six gaps longer than 15 cM. Markers previously mapped in Prunus dulcis ‘Texas’ × Prunus persica ‘Earlygold’ allowed the cherry map to be anchored to the peach × almond map and showed the high level of synteny between the species. Eighty-four loci segregated in P. avium ‘Napoleon’ versus 159 in P. nipponica. The segregations of 32 isoenzyme loci in a subset of 47 seedlings from the progeny were scored, using polyacrylamide gel electrophoresis and/or isoelectric focusing separation followed by activity staining, and the co-segregation data were analysed along with those for 39 isoenzymes reported previously and for the 174 sequence-tagged site loci plus an additional two SSR loci. The second map incorporates 233 loci and spans 736 cM over eight linkage groups with an average marker spacing of 3.2 cM per marker and just two gaps greater than 15 cM. The microsatellite map will provide a useful tool for cherry breeding and marker-assisted selection and for synteny studies within Prunus; the gene-specific markers and isoenzymes will be useful for comparisons with maps of other rosaceous fruit crops.

Keywords

Prunus aviumLinkage mapSSRIsoenzymeGene-specific markerSynteny

Supplementary material

11295_2008_166_MOESM1_ESM.doc (264 kb)
Table S1Monogenic segregation ratios and chi-squared values for goodness of fit to expected Mendelian segregation ratios for 174 loci (160 SSR and six gene-specific markers) scored in PA × PN including their linkage group location. The suffixes A, B and C distinguish multiple loci revealed by particular primers. Segregation ratios deviating significantly from the expected ratios (P ≤ 0.05, 0.01, 0.001) are indicated with one, two or three asterisks, respectively (DOC 264 KB)
11295_2008_166_MOESM2_ESM.doc (79 kb)
Table S2Monogenic segregation ratios and chi-squared values for goodness of fit to expected Mendelian segregation ratios for 32 isoenzyme and two SSR loci scored in a 47 seedling subset of the PA × PN progeny including their linkage group location. The suffixes -1, -2, -3, etc. distinguish multiple isoenzyme loci detected with PAGE and -a, -b, -c for cathodal and -z, -y, -x, etc. for anodal loading with IEF. Segregation ratios deviating significantly from the expected ratios (P ≤ 0.05, 0.01, 0.001) are indicated with one, two or three asterisks, respectively (DOC 79.0 KB)

Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • J. B. Clarke
    • 1
  • D. J. Sargent
    • 1
  • R. I. Bošković
    • 1
    • 2
  • A. Belaj
    • 1
    • 3
  • K. R. Tobutt
    • 1
  1. 1.East Malling Research (EMR)KentUK
  2. 2.Imperial College at WyeAshfordUK
  3. 3.Centro “Alameda del Obispo”, IFAPACórdobaSpain