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Over the past decade we have used quantitative trait locus (QTL) mapping to dissect adaptive and economic traits in Douglas-fir, loblolly pine and poplar. Though highly informative, these studies do not reveal which genes are responsible for controlling traits of interest.
In this study we propose to use a population genomic approach called association mapping to identify the specific genes (i.e. loci and alleles) that are responsible for phenotypic differences in adaptive traits of Douglas-fir.
Conifers are excellent model plants for dissecting complex traits using association genetics; they are evolutionarily old, are distributed in large, out-crossed, natural populations with high gene flow, and they have little population substructure...
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Eckert AJ, Wegrzyn JW, Pande B, Jermstad KD, Lee JM, Liechty JD,Tearse BR, Krutovsky KV, Neale DB. Positive selection affects
candidate genes related to cold-hardiness in coastal Douglas-fir (Pseudotsuga menziesii var. menzisii). (Submitted 2009). Supplemental Data |
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St.Clair J.B., Mandel N.L., Vance-Borland K.W. (2005). Genecology of Douglas-fir in western Oregon and Washington. Anal Bot. 96:1199-1214.
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Howe G.T., Jayawickrama K.J., Cherry M.L., Wheeler N.C., Johnson G.R. (2005). Breeding Douglas-fir. In Plant breeding reviews (editor J Janick). John Wiley and Sons, Inc. 27:245-353.
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