@article {202,
	title = {Jaw muscle development as evidence from embryonic repatterning in direct-developing frogs},
	journal = {Proceedings of the Royal Society of London - Series B: Biological Sciences},
	volume = {264},
	number = {1386},
	year = {1997},
	pages = {1349-1354},
	abstract = {The Puerto Rican direct-developing frog Eleutherodactylus coqui (Leptodactylidae) displays a novel mode of jaw muscle development for anuran amphibians. Unlike metamorphosing species, several larval-specific features never form in E. coqui; embryonic muscle primordia initially assume an abbreviated, mid-metamorphic configuration that is soon remodelled to form the adult morphology before hatching. Also lacking are both the distinct population of larval myofibres and the conspicuous, larval-to-adult myofibre turnover that are characteristic of muscle development in metamorphosing species. These modifications are part of a comprehensive alteration in embryonic cranial patterning that has accompanied life history evolution in this highly speciose lineage. Embryonic {\textquoteright}repatterning{\textquoteright} in Eleutherodactylus may reflect underlying developmental mechanisms that mediate the integrated evolution of complex structures. Such mechanisms may also facilitate, in organisms with a primitively complex life cycle, the evolutionary dissociation of embryonic, larval, and adult features.},
	author = {Hanken, James and Klymkowsky, Michael W. and Alley, Keith E. and Jennings, David H.}
}
