GrassTFDB :: Browse Family::Sugarcane

Displaying C2C2-YABBY Family from Sugarcane


Lateral organs produced by shoot apical and flower meristems exhibit a fundamental abaxial-adaxial asymmetry. We describe three members of the YABBY gene family FILAMENTOUS FLOWER YABBY2 and YABBY3 isolated on the basis of homology to CRABS CLAW. Each of these genes is expressed in a polar manner in all lateral organ primordia produced from the apical and flower meristems. The expression of these genes is precisely correlated with abaxial cell fate in mutants in which abaxial cell fates are found ectopically reduced or eliminated. Ectopic expression of either FILAMENTOUS FLOWER or YABBY3 is sufficient to specify the development of ectopic abaxial tissues in lateral organs. Conversely loss of polar expression of these two genes results in a loss of polar differentiation of tissues in lateral organs. Taken together these observations indicate that members of this gene family are responsible for the specification of abaxial cell fate in lateral organs of Arabidopsis. Furthermore ectopic expression studies suggest that ubiquitous abaxial cell fate and maintenance of a functional apical meristem are incompatible.

Protein Name
accepted / suggested
Gene Locus Synonym/
Gene Name
Clone in TFome Genome Browser
ScYAB1 PTSo00295.1 View in Browser
ScYAB2 PTSo00292.1 View in Browser
ScYAB3 PTSo00293.1 View in Browser
ScYAB4 PTSo00297.1 View in Browser
ScYAB5 PTSo00289.1 View in Browser
ScYAB6 PTSo00296.1 View in Browser
ScYAB7 PTSo00287.1 View in Browser
ScYAB8 PTSo00290.1 View in Browser
ScYAB9 PTSo00291.1 View in Browser
ScYAB10 PTSo00288.1 View in Browser
ScYAB11 PTSo00294.1 View in Browser
ScYAB12 SCCCFL5060H05.g View in Browser
ScYAB13 SCCCCL7001A04.g View in Browser
ScYAB14 SCUTHR1065C05.g View in Browser
ScYAB15 SCAGFL1087G04.g View in Browser
ScYAB16 SCACLR1130H08.g View in Browser
ScYAB17 SCRLRZ3040F11.g View in Browser
ScYAB18 SCEPLR1030E11.g View in Browser