Table 1. A comparison of egl-4 mutant phenotypes in C. elegans and P. pacificus.

egl-4 mutation	body length	fat storage	pharyngeal pumping	Forward movement	egg holding	odor sensing	odor adaptation
Cel-egl-4(lf)	↑26,31	↓25	↑#	↑14	↑38	↓13	↓13
Ppa-egl-4(lf)	↓16	↑*	↑*	↑*	no affect16	↓16	↓16

In C. elegans, the loss-of-function (lf) alleles n479 and ks62 have been used in multiple studies; In P. pacificus, only the loss-of-function null allele tu374 have been described. For fat storage measurements, Cel-egl-4(gf) and Ppa-egl-4(lf) alleles refer to Nile Red staining on fixed animals. *this study; ^#van Buskirk pers. comm; [13], [14], [16], [25], [26], [31], [38].