M2 — Daucus carota subsp. sativus

Summary

DcM2 (DCAR_029018) on carrot chromosome 9 encodes a protein with cyclophilin-type peptidylprolyl cis-trans isomerase (PPIase) domains, tetratricopeptide repeat (TPR) regions, and additional domains including matrin/U1 zinc finger and OCRE motifs. It is annotated with diverse molecular functions such as cyclosporin A binding, salicylic acid binding, histone binding, chromatin binding, peroxidase activity, and L-serine O-acetyltransferase activity, and is associated with processes including protein proline isomerization, alternative mRNA splicing, response to light intensity, and response to arsenic. The gene is linked to numerous agronomically relevant traits including photosynthetic rate, respiration rate, sucrose content, starch grain synthesis, root mass density, root hair length, heat stress tolerance, disease resistance, and herbicide sensitivity. It has also been associated with embryo patterning, meristem development, auxin transport, and gravitropism. Related genes in other species are linked to cold stress tolerance, drought response, hydrotropism, and floral meristem determinacy.