GrainGenes Reference Report: TAG-100-607
Reference
TAG-100-607
Title
Are mapped markers more useful for assessing genetic diversity?
Journal
Theoretical and Applied Genetics
Year
2000
Volume
100
Pages
607-613
Author
Virk PS Newbury HJ Jackson MT Ford-Lloyd BV
Abstract
Summary: 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 of parents 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
External Databases
http://link.springer.de/link/service/journals/00122/bibs/0100003/01000607.htm
Keyword
GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.
GrainGenes Reference Report: TAG-100-607
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||