GUN1 — Cucumis sativus

Summary

CsGUN1 (CSA_7G407790) on cucumber chromosome 7 encodes a pentatricopeptide repeat-containing protein with endonuclease activity and pre-rRNA, ssRNA, mRNA, and DNA binding functions. It is associated with chloroplast-nucleus retrograde signaling, photosystem I assembly, chloroplast RNA processing, group II intron splicing, mRNA stabilization, and positive regulation of translation. The protein localizes to the chloroplast stroma and mitochondria. CsGUN1 has been linked to leaf shape and germination rate, as well as phenotypes including chloroplast development, photomorphogenesis, oxidative stress resistance, basal thermotolerance, flowering time, anthocyanin accumulation, and water stress tolerance. Related genes in other species are linked to chloroplast biogenesis, retrograde signaling, and chlorophyll-deficient seedling phenotypes.

Annotations

Chromosome
7
Related genes
GUN1
GO terms
Mitochondrial MRNA Modification, retrograde response, MRNA Stabilization, MRNA Cis Splicing, Via Spliceosome, Chloroplast RNA Processing, Group II Intron Splicing, Chloroplast-nucleus Signaling Pathway, Seed Germination
Publications
40366233, 33631804, 20650273, 32362266, 31850621, 26297452, 36844062, 35836377
Traits
chloroplast development, photomorphogenesis, oxidative stress tolerance, retrograde signaling, basal thermotolerance, salicylic acid response, photosynthesis-associated nuclear gene expression, plastid-to-nucleus signalling