Definition:
"Variations in the ability of seam cells to fuse to form a continuous syncytium along the body wall late larval development, (separate from the hyp 7 syncytium), compared to control (WormAtlas). Hypodermal seam cells lie along the lateral body wall to form longitudinal stripes of epithelial cells underlying the alae, and are required for alae formation." [WB:
WBPerson2021, WB:
WBPerson557]