Spatial distribution mapping of the CHH-family neuropeptides in C. borealis sinus gland.
A, MALDI mass spectrum of direct tissue analysis of C. borealis sinus gland. B, MALDI-MSI image of Cab−SG−CHH-I on C. borealis eyestalk. Zoom-in MALDI images of Cab−SG−CHH-I (C), Cab−SG−CHH-II (D), Cab−SG−MIH (E), Cab−SG−MOIH (F), and Cab−SG−CPRP (G) on the sinus gland of C. borealis eyestalk.