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Complex pine gene families

We have initiated a long term study to determine the molecular mechanisms which have driven pine genome evolution. Pine genomes are large and contain many examples of repeated sequences suggesting that pine genome evolution has included repeated duplication or amplification events. Our initial studies reported here characterize the structure of two classes of repeated sequences. One class revealed by copy DNA probes encodes structural proteins and the second class revealed by a genomic DNA clone is a retrotransposable element . By comparing the structure of complex gene families within the genomes of two distantly related pines, loblolly pine and western white pine, we can determine evolutionary pathways for specific gene families and begin to infer molecular mechanisms which have operated upon pine genomes over geological time.


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Author(s): C. S. Kinlaw, S. Gerttula

Publication: Tree Improvement and Genetics - Southern Forest Tree Improvement Conference - 1993

Section: Concurrent Session 5: Gene Mapping