Professor of Plant Biology Ph.D. (1997) Duke University Associate Editor, Evolutionary Ecology Grant Support - “Evolutionary and functional analysis of variation in pollen traits for the common morning glory, Ipomoea purpurea,” NSF Selected Publications Selected Publications: Young, A.R., Chang, S.-M. and R.R. Sharitz. 2006. Reproductive ecology of a federally endangered legume, Baptisia arachnifera, and its more widespread congener, Baptisia lanceolata (Fabaceae). American Journal of Botany, in press. Shaw, R.G. and S.-M. Chang. 2006. Gene action of new mutations in Arabidopsis thaliana. Genetics 172: 1855-1865. Chang, S.-M. 2006. Female compensation through the quantity and quality of progeny in a gynodioecious plant, Geranium maculatum (Geraniaceae) American Journal of Botany 93: 263-270. Chang, S.-M., Y. Lu , and M.D. Rausher. 2005. Neutral evolution of the non-binding region of the anthocyanin regulatory gene Ipmyb1 in Ipomoea. Genetics 170: 1967-1978. Chang, S.-M. and R.G. Shaw. 2003. The contribution of spontaneous mutation to variation in environmental response in Arabidopsis thaliana: Responses to nutrients. Evolution 57: 984-994. Rausher, M.D. and S.-M. Chang. 1999. Stabilization of mixed-mating systems by differences in the magnitude of inbreeding depression for male and female fitness components. American Naturalist 155: 242-248. Chang, S.-M. and M.D. Rausher. 1999. The role of inbreeding depression in maintaining a mixed mating system in the common morning glory, Ipomoea purpurea. Evolution 53: 1366-1376. Chang, S.-M. and M.D. Rausher. 1998. Frequency-dependent pollen discounting contributes to the maintenance of a mixed mating system in the common morning glory, Ipomoea purpurea. American Naturalist 152: 671-683.