Abstract
As depicted by the previous speaker, Streptocarpus species display unique morphological patterns, which is the Phyllomorph concept. Molecular basis of such unique morphogenesis was followed by expression patterns of KNOX1 and Phantastica genes. We further explored this analysis to the Gesneriaceae which distribute to the whole world and display unique morphogenesis. One of these characteristics is anisocotyly, which is observed only in the Old World gesneriad.
When we analyzed the expression patterns of KNOX1 gene during the formation of shoot and leaves, it is summarized as follows: morphogenetic potentials of SAM would have been attained in leaves, resulting in unique leaf formation patterns. Furthermore, upon anisocotyly environmental signals such as light play an important role, although we reported previously that cytokinin is a key factor for forming anisocotyly. As it became clear that KNOX1 expression is closely associated with anisocotyly, a hypothetical construction regarding this phenomena will be presented.
