Evolutionary history of callose synthases in terrestrial plants with emphasis on proteins involved in male gametophyte development
Fig 2
Expression profiles of 12 callose synthases in different sporophytic tissues and during male gametophyte development of Arabidopsis thaliana.
SUS, suspension cultures; SDL, seedling; LF, leaf; RT, root; FWB, flower buds; FLW, flower; SD, seed; UNM, uninuclear microspore; BCP, bicellular pollen; TCP, tricellular pollen; MPG, mature pollen grain; PT4, 4h pollen tubes; SPC, sperm cells.