θɹuː tʃˈɪk kwˈeɪl hˈaɪbɹɪd ɛkspˈɛɹɪmənts æz wˈɛl æz dʒɪnˈɛɾɪk ˌɪntɚɹˈækʃən ɛkspˈɛɹɪmənts ɪn zˈɛbɹæfɪʃ, ɪɾ ɐpˈɪɹz ðæt nˈɑːɾəkˌɔːɹd ænd flˈoːɹ plˈeɪt sˈɛlz ɚɹˈɪdʒᵻnˌeɪt fɹʌm ɐ kˈɑːmən pɹɪkˈɜːsɚ.
Through chick – quail hybrid experiments as well as genetic interaction experiments in zebrafish, it appears that notochord and floor plate cells originate from a common precursor.