Differential morphology and transcriptome profile between the incompletely fused carpels ovary and its wild-type in maize.

ABSTRACT: We have isolated a new mutation in maize, incompletely fused carpels (ifc), which results in an open stylar canal on the ovary and an incomplete pericarp at the top of the kernel. The maize ovary derives from the fusion of three carpels; however, the molecular networks regulating maize carpel fusion remain largely unclear. In this study, RNA sequencing (RNA-seq) was performed on wild-type (WT) and ifc ovaries that were collected after carpel fusion defects could be morphologically distinguished. In total, 877 differentially expressed genes were identified. Functional analysis revealed overexpression of genes related to "DNA binding", "transcription regulation", "hormones", and "stress responses". Among the 88 differentially expressed transcription factor (TF) genes, five showed a high degr

SUBMITTER: Li H 

PROVIDER: S-EPMC5009309 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature