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J. Nairn (unpublished data). In this vector, the laccase-like gene is driven by the UBQ11 constitutive promoter, and due to insertion position effects, it was possible to select events with different expression levels for leaf assays used to predict blight resistance levels (Newhouse et al. 2013). 05, Fig. 4). Improvements in the leaf assay procedure are being evaluated in an effort to detect finer differences between the test plants and controls, which may help detect significant differences between the events with smaller changes in resistance.

S. Balci, J. L. MacDonald, J. P. W. Gottschalk. 2007. Phytophthora spp. S. oak ecosystems. Plant Disease 91: 705–710. S. DiLoreto, Y. Zhang, C. Smith, K. A. Powell, N. Wheeler, R. E. Carlson. 2009. Comparison of the transcriptomes of American chestnut (Castanea dentata) and Chinese chestnut (Castanea mollissima) in response to the chestnut blight infection. BMC Plant Biology 9: 51, 11 pp. , M. -H. Cheng, J. M. Yassin, S. -C. Yeh, F. Hebard, K. Baier, W. C. Schuster, N. Wheeler, A. E. Carlson and R.

M. Montello, R. J. A. Merkle. 2011. Application of airlift bioreactors for highly efficient genetic transformation of American chestnut. pp. 102. In: Proc. 31st Southern Forest Tree Improvement Conference. Southern Forest Tree Improvement Committee, Biloxi, Mississippi. , M. Casasoli, T. Barreneche, C. Bodénès, P. Sisco, T. Kubisiak, M. Scalfi, S. Leonardi, E. Bakker, J. Buiteveld, J. Romero-Severson, K. Arumuganathan, J. Derory, C. ScottiSaintagne, G. E. Bertocchi, C. Lexer, I. Porth, F. Hebard, C.

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