Cognate cyclin for CDKG1. Required for synapsis and male meiosis, and for the proper splicing of specific resistance (R) genes. Involved in regulation of DNA methylation and transcriptional silencing. Forms a complex with CDKG1. Interacts with MOS4 and associates with the spliceosome. Lethal, due to male sterility. Belongs to the cyclin family. Cyclin L subfamily.