CAB1 — Solanum tuberosum

Summary

StCAB1 (PGSC0003DMG400006149) on potato chromosome 7 encodes a chlorophyll a-b binding protein of the light-harvesting complex (LHCII) family, localised to the thylakoid membrane and photosystems I and II. The gene product is associated with chlorophyll binding, xanthophyll binding, and multiple activities in chlorophyll metabolism, including chlorophyll b synthesis, pheophytinase, and pheophorbide a oxygenase activities. StCAB1 is associated with photosynthesis, light harvesting in both photosystems, downregulation of photosynthesis, and PSII-associated LHCII catabolic processes. It is linked to traits such as chlorophyll content and ratio, photosynthetic rate, starch content, leaf yellowing tolerance, bacterial blight disease resistance, and responses to high and low temperature stress, drought, and oxidative stress. Associations also include chloroplast development, leaf senescence, flowering time, and plant growth and development traits.