@article{yu_li_nelson_mckeand_batista_mullin_2006, title={Association of the cad-n1 allele with increased stem growth and wood density in full-sib families of loblolly pine}, volume={2}, ISSN={["1614-2950"]}, DOI={10.1007/s11295-005-0032-y}, number={2}, journal={TREE GENETICS & GENOMES}, author={Yu, Q. and Li, B. and Nelson, C. D. and McKeand, S. E. and Batista, V. B. and Mullin, T. J.}, year={2006}, month={Apr}, pages={98–108} }
 @article{yu_mckeand_nelson_li_sherrill_mullin_2005, title={Differences in wood density and growth of fertilized and nonfertilized loblolly pine associated with a mutant gene, cad-n1}, volume={35}, ISSN={["1208-6037"]}, DOI={10.1139/X05-103}, abstractNote={ A rare mutant allele (cad-n1) of the cad gene in loblolly pine (Pinus taeda L.) causes a deficiency in the production of cinnamyl alcohol dehydrogenase (CAD). Effects associated with this allele were examined by comparing wood density and growth traits of cad-n1 heterozygous trees with those of wild-type trees in a 10-year-old open-pollinated family trial growing under two levels of fertilization in Scotland County, North Carolina. In all, 200 trees were sampled, with 100 trees for each fertilizer treatment. Wood density measurements were collected from wood cores at breast height using X-ray densitometry. We found that the substitution of a cad-n1 for a wild-type allele (Cad) was associated with a significant effect on wood density. The cad-n1 heterozygotes had a significantly higher wood density (+2.6%) compared with wild-type trees. The higher density was apparently due to the higher percentage of latewood in the heterozygotes. The fertilization effect was highly significant for both growth and wood density traits. This study indicates that the cad-n1 allele could be a valuable gene to the pulp and paper industry for the purpose of enhancing pulp yields by increasing wood density. }, number={7}, journal={CANADIAN JOURNAL OF FOREST RESEARCH}, author={Yu, Q and McKeand, SE and Nelson, CD and Li, B and Sherrill, JR and Mullin, TJ}, year={2005}, month={Jul}, pages={1723–1730} }
 @inproceedings{yu_capanema_batista_josserand_johnson_nelson_mckeand_mackay_kadla_li_et al._2004, title={Tracking down the effects of a rare mutant gene in loblolly pine: a first report}, booktitle={2004 Paper Summit, Spring Technical and International Environmental Conference}, publisher={CD-ROM published by TAPPI,  Norcross, GA}, author={Yu, Q. and Capanema, E. and Batista, V. B. and Josserand, S. and Johnson, G. and Nelson, C. D. and McKeand, S. E. and MacKay, J. J. and Kadla, J. F. and Li, B. and et al.}, year={2004} }
 @article{yu_yang_zhang_beaulieu_duchesne_2003, title={Genetic variation in decay resistance and its correlation to wood density and growth in white spruce}, volume={33}, ISSN={["0045-5067"]}, DOI={10.1139/X03-150}, abstractNote={ This study investigated the genetic variation of white spruce (Picea glauca (Moench) Voss) in decay resistance and its correlation with wood density and growth. Three fungi were examined, a brown-rot fungus (Gloeophyllum trabeum), a white-rot fungus (Trametes versicolor), and a standing-tree-decay fungus (Fomitopsis pinicola). The decay resistance was inversely related to the growth rate of the fungi on heartwood blocks. A total of 270 trees of 35 families were harvested from 36-year-old provenance–progeny trials at two sites through a thinning operation. The narrow-sense heritabilities of white spruce decay resistance to brown rot and white rot were 0.21 and 0.27, respectively. There were no significant differences in resistance to standing-tree-decay fungus among the families. The phenotypic and genetic correlations between the growth rate of brown rot on heartwood blocks and wood density were positive, but the genetic correlation between wood density and the growth rate of white rot on heartwood blocks was negative but not significant. The results indicate that the different species of fungi have different relationships with the annual growth of trees and wood density, and suggest that selection for wood density in white spruce might lead to an increase in resistance to white rot, but a decrease in resistance to brown rot. }, number={11}, journal={CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE}, author={Yu, QB and Yang, DQ and Zhang, SY and Beaulieu, J and Duchesne, I}, year={2003}, month={Nov}, pages={2177–2183} }