Vol. 43 No. 2 (1999) pp.94-182

March 1999

Cover legend

Alcian blue-stained whole-mount preparations of Xenopus hind limb showing cartilage patterns of st. 55/56 tadpoles. Top: Control. Bottom: Limb developed after transplantation of a fragment from the distal region of st. 52/53 limb bud into a st. 50 limb bud. In most cases, the transplanted fragment did not severely disturb the cartilage pattern along the proximo-distal axis of the host limb, except for occasional production of supernumerary structures in the distal region as shown by this photograph. The transplanted distal cells tended to participate in tissue formation only at the digit level in the experimental limb. It appeared that the grafted cells moved distally to the region corresponding to their original positional ident ity in the developing host limb bud. For details see "Behavior of cells in artificially made cell aggregates and tissue fragments after grafting to developing hind limb buds in Xenopus laevis" by N. Koibuchi and S. Tochinai in this issue.

Review

Regulation of neural crest cell populations: occurrence, distribution and underlying mechanisms.
J L Vaglia and B K Hall
Int. J. Dev. Biol. (1999) 43: 95-110

Original articles

FSH-initiated differentiation of newt spermatogonia to primary spermatocytes in germ-somatic cell reaggregates cultured within a collagen matrix.
R Ito and S I Abé
Int. J. Dev. Biol. (1999) 43: 111-116
The formation of the feather pattern in chick skin after a proportion of cells have been killed by X-irradiation.
H S Jung, L Wolpert and D Davidson
Int. J. Dev. Biol. (1999) 43: 117-123
Identification and characterization of maternally expressed genes with mRNAs that are segregated with the endoplasm of early ascidian embryos.
K Imai, N Satoh and Y Satou
Int. J. Dev. Biol. (1999) 43: 125-133
The human SRY protein is present in fetal and adult Sertoli cells and germ cells.
L Salas-Cortés, F Jaubert, S Barbaux, C Nessmann, M R Bono, M Fellous, K McElreavey and M Rosemblatt
Int. J. Dev. Biol. (1999) 43: 135-140
Behavior of cells in artificially made cell aggregates and tissue fragments after grafting to developing hind limb buds in Xenopus laevis.
N Koibuchi and S Tochinai
Int. J. Dev. Biol. (1999) 43: 141-148
Fetal myoblast clones contribute to both fast and slow fibres in developing rat muscle.
S M Hughes
Int. J. Dev. Biol. (1999) 43: 149-155
TGFbeta and TGFalpha, antagonistic effect in vitro on extracellular matrix accumulation by chick skin fibroblasts at two distinct embryonic stages.
P Locci, T Baroni, C Lilli, D Martinese, L Marinucci, S Bellocchio, M Calvitti and E Becchetti
Int. J. Dev. Biol. (1999) 43: 157-165
Alcohol promotes in vitro chondrogenesis in embryonic facial mesenchyme.
L M Hoffman and W M Kulyk
Int. J. Dev. Biol. (1999) 43: 167-174

Short contributions

Differential expression of two skeletal muscle beta-tropomyosin mRNAs during Xenopus laevis development.
C Gaillard, H Lerivray, N Thézé, B Cooper, D Lepetit, T Mohun and P Thiébaud
Int. J. Dev. Biol. (1999) 43: 175-178
Action of serotonin antagonists on cytoplasmic calcium levels in early embryos of sea urchin Lytechinus pictus.
Y B Shmukler, G A Buznikov and M J Whitaker
Int. J. Dev. Biol. (1999) 43: 179-182

The International Journal of Developmental Biology
ISSN 1696-3547 (online) and 0214-6282 (print)