is involved in cotton response to aphid attack through mediating callose formation.

Callose synthase plays an essential role in plant growth and development and in response to all sorts of stresses through regulating callose formation. However, few research about the function and mechanism of the insect resistance of callose synthase genes have been reported in cotton. In this study, a cotton callose synthase gene was cloned, and its function and mechanism of resistance to cotton aphids were analyzed. The expression of was significantly upregulated in both, leaves and stems of cotton plants at 48 h after cotton aphid infestation and in the leaves of cotton plants at 24 h after salicylic acid treatment. The overexpression of enhanced cotton resistance to cotton aphids. Expectedly silencing of reduced cotton resistance to cotton aphids. Overexpression of enhanced callose formation in cotton leaves. Our results suggest that is involved in cotton resistance against cotton aphids by influencing callose formation.