Furthermore, in zebrafish, Nodal signaling is required for differentiation of medial floor plate cells whereas Shh is expendable.
fˌɜːðɚmˈoːɹ, ɪn zˈɛbɹæfɪʃ, nˈoʊdəl sˈɪɡnəlɪŋ ɪz ɹᵻkwˈaɪɚd fɔːɹ dˌɪfɚɹˌɛnʃɪˈeɪʃən ʌv mˈiːdiːəl flˈoːɹ plˈeɪt sˈɛlz wˈɛɹæz ˌɛsˌeɪtʃˈeɪtʃ ɪz ɛkspˈɛndəbəl.