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Gene Expression Profiling In Differentiating Xylem Of Loblolly Pine

The formation of secondary xylem is a biological process of both ecological and economic importance. Over 40,000 xylem ESTs have now been sequenced from loblolly pine, the most important commercial forest tree species in the U.S. (web.ahc.umn.edu/biodata/nsfpine). Our goal is to learn more about regulatory, biosynthetic and cellular processes involved in secondary xylem differentiation by characterizing gene expression profiles. These studies aim at a broad understanding of the roles of newly discovered pine genes in secondary xylem formation and identifying candidate genes that potentially control specific wood properties. We are currently conducting preliminary experiments with ~350 abundantly expressed pine xylem ESTs; comparing glass slide microarray and membrane array systems to optimize methods.


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Author(s): Ulrika Egertsdotter, Len van Zyl, John MacKay, Ross W. Whetten, Gary F. Peter

Publication: Tree Improvement and Genetics - Southern Forest Tree Improvement Conference - 2001

Section: Posters