COP1 (PSAT2G073000) — Pisum sativum

Summary

PsCOP1 (PSAT2G073000) on garden pea chromosome 2LG1 encodes a cyclin-dependent kinase (CDK) with RNA polymerase II CTD heptapeptide repeat kinase activity, cyclin binding, and additional molecular functions including pre-mRNA 5'-splice site binding, L-leucine binding, adenylyltransferase activity, and phytochrome binding. The gene is associated with regulation of signaling, positive regulation of transcription elongation, phytochrome signaling pathway regulation, response to red or far red light, upregulation of photosynthesis, leaf formation, and brassinosteroid and cytokinin anabolism. It has been linked to traits including grain yield, plant growth hormone response, light quality response, UV-A and far red light sensitivity, chlorophyll ratio, leaf area and angle, flower diameter and morphology, root system morphology, fruit set, spot blotch response, copper and glyphosate sensitivity, and seed longevity. The gene is also associated with phenotypes including early flowering, altered light response, reduced chlorophyll, seed development, and salinity stress tolerance.