natural variation in uv-ag贵宾会

plants can adapt to local environmental conditions resulting in the evolution of ecotypes. where plants are exposed to gradients of particular environmental effectors, adaptation may give rise to a specific pattern of phenotypic diversity. arabidopsis thaliana is a variable species that is native to europe and central asia where it is exposed to a wide range of altitudinal, climatic, and edaphic conditions (koornneef et al., 2004). it is likely that at least some of the phenotypic variation in arabidopsis reflects local adaptation and has ecological significance (koornneef et al., 2004). phenotypic variation in arabidopsis has been identified in traits such as disease resistance, tolerance to oxidative stress, extreme temperatures, salt and drought, flowering time and morphology, biochemical make-up, growth rate and others (koornneef et al., 2004). analysis of such natural diversity can contribute to the identification of gene-function, but also inform about the ecological importance of particular traits. in recent years arabidopsis accessions have been used to study, among others, latitudinal clines for flowering time (stinchcombe et al., 2004; balasubramanian et al., 2006) , and red / far-red light responses (sten? ien et al., 2002) as well as a coastal cline for sodium accumulation (baxter et al., 2010).