Abstract
TAF10 is one of the TATA box-binding protein (TBP) associated factors (TAFs), which constitute TFIID with a TBP. Previously we isolated Arabidopsis thaliana TAF10 (atTAF10), which was single-copy gene closely related to other organisms' TAF10, and revealed that atTAF10 is expressed transiently in the developmental processes of lateral roots, rosette leaves and most floral organs. Here we will report the several abnormal morphologies observed in the transformants in which the proper expression of atTAF10 was disturbed. For example, terminal flower, over-production of immature leaves and emergence of carpel-like structures were observed in both atTAF10-over-expressed- and atTAF10-antisense-suppressed transformants. In these transformants, the expression of WUSCHEL (WUS) and AGAMOUS (AG) was up-regulated. Collectively, the results suggest that atTAF10 is a "selective" TAF in plants, which is involved in normal development of several tissues through regulating WUS and AG expression.
