PTC2

• Symbol: PTC2
• MSU: LOC_Os02g57520
• RAPdb: Os02g0820800

• PERSISTENT TAPETAL CELL 2 is required for normal tapetal programmed cell death and pollen wall patterning., 2019, Plant Physiol.

Genbank accession number

• ptc2 showed persistent tapetal cells and abnormal pollen wall patterning including absent nexine, collapsed bacula and disordered tectum
• The defective tapetal PCD phenotype of ptc2 was similar to that of a PCD delayed mutant, ptc1, in rice, while the abnormal pollen wall patterning resembled that of a pollen wall defective mutant, tek, in Arabidopsis thaliana
• Based on these data, we propose a model explaining how PTC2 affects anther and pollen development
• The characterization of PTC2 in tapetal PCD and pollen wall patterning expands our understanding of the regulatory network of male reproductive development in rice and will aid future breeding approaches
• Levels of anther cutin monomers in ptc2 anthers were significantly reduced, as was expression of a series of lipid biosynthetic genes
• PTC2 transcript and protein were shown to be present in the anther after meiosis, consistent with the observed phenotype

• PTC1~OsMS1, PTC2, PERSISTENT TAPETAL CELL 2 is required for normal tapetal programmed cell death and pollen wall patterning., The defective tapetal PCD phenotype of ptc2 was similar to that of a PCD delayed mutant, ptc1, in rice, while the abnormal pollen wall patterning resembled that of a pollen wall defective mutant, tek, in Arabidopsis thaliana