An SSR and AFLP molecular marker-based genetic map of white clover (Trifolium repens L.)

E.S. Jones; L.J. Hughes; M.C. Drayton; M.T. Abberton; T.P.T. Michaelson-Yeates; C. Bowen; J.W. Forster

doi:10.1016/S0168-9452(03)00212-7

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An SSR and AFLP molecular marker-based genetic map of white clover (Trifolium repens L.)

Journal article

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An SSR and AFLP molecular marker-based genetic map of white clover (Trifolium repens L.)

E.S. Jones, L.J. Hughes, M.C. Drayton, M.T. Abberton, T.P.T. Michaelson-Yeates, C. Bowen and J.W. Forster

Plant Science, Vol.165(3), pp.531-539

2003

DOI: https://doi.org/10.1016/S0168-9452(03)00212-7

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Abstract

A framework genetic map of white clover (Trifolium repens L.) has been constructed using an F2 progeny set derived from the intercross of fourth and fifth generation inbred genotypes carrying a self-fertile mutation (Sf). White clover SSR (TRSSR) and AFLP markers were used to derive a map with 135 markers (78 TRSSR loci and 57 AFLP loci) assigned to 18 linkage groups (LGs) with a total map length of 825 cm. Sixteen of these LGs are presumed to correspond to the 16 chromosomes of the white clover karyotype. A limited number of multiple loci were detected. Substantial segregation distortion was observed for both mapped and unmapped loci, with a bias towards heterozygous types and a preponderance of distorted markers on certain LGs. This observation, along with a high degree of residual heterozygosity within the inbred parental genotypes, suggests that reduced individual fitness due to loss of heterosis is a major effect for white clover and will limit the applicability of F2 or backcross mapping strategies for this species. A core set of map-assigned co-dominant, single locus SSR markers has been defined for whole genome scans of genetic variability in white clover.

Details

Title: An SSR and AFLP molecular marker-based genetic map of white clover (Trifolium repens L.)
Authors/Creators: E.S. Jones (Author/Creator) - La Trobe University
L.J. Hughes (Author/Creator) - La Trobe University
M.C. Drayton (Author/Creator) - La Trobe University
M.T. Abberton (Author/Creator) - Aberystwyth University
T.P.T. Michaelson-Yeates (Author/Creator) - Aberystwyth University
C. Bowen (Author/Creator) - Aberystwyth University
J.W. Forster (Author/Creator) - La Trobe University
Publication Details: Plant Science, Vol.165(3), pp.531-539
Publisher: Elsevier
Identifiers: 991005541129207891
Copyright: 2003 Published by Elsevier Ireland Ltd
Murdoch Affiliation: Murdoch University
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 3 Agriculture, Environment & Ecology; 3.4 Crop Science; 3.4.96 QTL
Web Of Science research areas: Biochemistry & Molecular Biology; Plant Sciences
ESI research areas: Plant & Animal Science