caa a22 4500 475795504 CHVBK 20180406123723.0 cr unu---uuuuu 170329e20000201xx s 000 0 eng 10.1007/s001220050080 doi (NATIONALLICENCE)springer-10.1007/s001220050080 Are mapped markers more useful for assessing genetic diversity? [Elektronische Daten] [P. S. Virk, H. J. Newbury, M. T. Jackson, B. V. Ford-Lloyd] Abstract : Genetic diversity within populations of organisms and species is commonly measured using molecular-marker data. It has been claimed that more reliable diversity measurements can be obtained using selected genetically mapped markers to ensure that all regions of the genome are represented in the data sets employed. However, this has not been tested. In the present study, using rice (Oryza sativa L.) as a model species, we have shown that the use of unmapped AFLP markers reveals a pattern of diversity that is very similar to that obtained using a range of other marker types and which reflects the known crossability groups within this species. In contrast, we show that use of mapped-marker data can, in some cases, result in highly misleading patterns of diversity; the results obtained are critically related to the choice ofparents used in the cross from which the mapping population was produced. For diversity analyses, we propose that it is appropriate to use unmapped markers provided that the marker-type has been shown to have a wide distribution over the genome. Springer-Verlag Berlin Heidelberg, 2000 Key words AFLP nationallicence Biodiversity nationallicence Genetic maps nationallicence Genetic resources nationallicence Rice nationallicence Virk P. S. School of Biological Sciences, University of Birmingham, PO Box 363, Birmingham B15 2TT, UK e-mail: p.s.virk@bham.ac.uk Fax: +44-121-414-5925, GB aut Newbury H. J. School of Biological Sciences, University of Birmingham, PO Box 363, Birmingham B15 2TT, UK e-mail: p.s.virk@bham.ac.uk Fax: +44-121-414-5925, GB aut Jackson M. T. International Rice Research Institute, PO Box 933, Los Baños, Manila, The Philippines, XX aut Ford-Lloyd B. V. School of Biological Sciences, University of Birmingham, PO Box 363, Birmingham B15 2TT, UK e-mail: p.s.virk@bham.ac.uk Fax: +44-121-414-5925, GB aut https://doi.org/10.1007/s001220050080 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s001220050080 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Virk P. S. School of Biological Sciences, University of Birmingham, PO Box 363, Birmingham B15 2TT, UK e-mail: p.s.virk@bham.ac.uk Fax: +44-121-414-5925, GB aut NATIONALLICENCE 700 1- Newbury H. J. School of Biological Sciences, University of Birmingham, PO Box 363, Birmingham B15 2TT, UK e-mail: p.s.virk@bham.ac.uk Fax: +44-121-414-5925, GB aut NATIONALLICENCE 700 1- Jackson M. T. International Rice Research Institute, PO Box 933, Los Baños, Manila, The Philippines, XX aut NATIONALLICENCE 700 1- Ford-Lloyd B. V. School of Biological Sciences, University of Birmingham, PO Box 363, Birmingham B15 2TT, UK e-mail: p.s.virk@bham.ac.uk Fax: +44-121-414-5925, GB aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer