Table 1.

Short-term BM-BM linkages that occur during development

Process	Organism	Tissues linked by BMs	Outcome
Anchor Cell invasion [21]	C. elegans	Uterine and vulval tissue	Tissue fusion
Imaginal Disc eversion [13]	D. Melanogaster	Peripodial epithelium and larval epithelium	Tissue fusion
Fin fold development [14]	D. rerio	Two sides of the fin fold	Tissue stabilization
Somites [50]	D. rerio	Somites and epithelia	Tissue stabilization
Opitc fissure closure [42]	Vertebrates	Two optic shelves	Tissue fusion
Distal Nephron precursor invasion [36]	Vertebrates	Developing nephron and collecting tubule	Tissue fusion
Mouth formation [37]	Deutrostome animals	Endoderm and ectoderm	Tissue fusion