... ) 19 3 2001 © 2001. 2001 Ascidian embryogenesis Nerve cord Notochord Developmental fate Autonomous differentiation Induction Default fate Ascidians (subphylum Urochordata) are regarded as an extant group that branched from a common ancestor with the other chordates...

..., University of Hawaii, 41 Ahui Street, Honolulu, HI 96813, USA 17 04 2000 13 06 2000 © 2000 by Company of Biologists 2000 Ascidian embryogenesis Mesodermal patterning Tissue induction bFGF Ooplasmic determinants Notochord Mesenchyme Localized factors in egg cytoplasm...

... is required for the expression of the As-T gene and that the expression of the As-T gene is closely correlated with the determined state of the notochord-precursor cells. 09 04 1996 © 1996 by Company of Biologists 1996 ascidian embryogenesis notochord differentiation induction bFGF...

... Makabe , K. W. and Satoh , N. ( 1989 ). Temporal expression of myosin heavy chain gene during ascidian embryogenesis . Dev. Growth Differ . 31 , 71 – 77 . 10.1111/j.1440-169X.1989.00071.x Maruyama , Y. K. , Nakaseko , Y. and Yagi , S. ( 1985 ). Localization...

... that would otherwise occur by default. 01 08 1994 © 1994 by Company of Biologists 1994 ascidian embryogenesis axis determination cytoplasmic determinants cleavage pattern cytoplasmic transfer In the unfertilized eggs of many kinds of animal, there is a single axis, namely...

... of the animal hemisphere ( Nishida, 1987 ). ascidian embryogenesis fate determination epidermis differentiation cell fusion cytoplasmic transfer cytoplasmic determinants Maternal information localized in particular regions of the egg cytoplasm plays important roles in the determination...

... . 10.1002/jez.1402500208 ascidian embryogenesis fate determination endoderm differentiation cell fusion cytoplasmic transfer cytoplasmic determinants It has been suggested that maternal information localized in particular regions of the egg cytoplasm plays important roles...

... are formed. The inferred movements of muscle determinants correspond to those of the myoplasm, a microscopically visible portion of the egg cytoplasm. 22 07 1992 © 1992 by Company of Biologists 1992 ascidian embryogenesis fate determination muscle differentiation cell fusion...