CAB25 — Triticum aestivum

Summary

TRAESCS1B02G317500, symbol CAB25 and also known as TaCab1 on bread wheat chromosome 1B, encodes a chlorophyll a-b binding protein of the chloroplast thylakoid membrane. The product belongs to the Chloro_AB-bd_pln and Chloroa_b-bind domain families and is annotated for chlorophyll binding and metal binding. This gene is associated with photosynthesis, light harvesting in photosystem I and II, response to light stimulus, and signal transduction. In wheat, CAB1 has been linked to abiotic stress tolerance and resistance to Puccinia striiformis f. sp. tritici (stripe rust). Associations also include plant vigor, leaf chlorophyll content, grain yield, drought tolerance, and abiotic plant stress response. Expression has been connected to root tip, root and shoot vascular systems, leaf mesophyll, and seed development. Related genes in other species support these light-harvesting roles.