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The International Journal of Developmental Biology

Volume 44 > Issue 2

Cover Vol. 44 N. 2

February 2000

Cover Legend

A frontal section of a female mouse embryo 7.5 days after fertilization stained for b-galactosidase (b-gal) encoded by E.coli lacZ transgene (HMG-lacZ) on the maternally derived X chromosome. The embryonic ectoderm and mesodermal tissues are mosaic for cell expressing and those not expressing b-gal due to random X chromosome inactivation. Almost all cells of the extraembryonic ectoderm are positive for b-gal because of imprinted inactivation of the paternally derived X chromosome. For details see "X chromosome inactivation revealed by the X-linked lacZ transgene activity in periimplantation mouse embryos" by M. Sugimoto et al., in this issue.

Original articles

X chromosome inactivation revealed by the X-linked lacZ transgene activity in periimplantation mouse embryos.

M Sugimoto, S S Tan and N Takagi

Int. J. Dev. Biol. (2000) 44: 177-182

Chitin oligosaccharides as candidate patterning agents in zebrafish embryogenesis.

C E Semino and M L Allende

Int. J. Dev. Biol. (2000) 44: 183-193

Requirement of protamine for maintaining nuclear condensation of medaka (Oryzias latipes) spermatozoa shed into water but not for promoting nuclear condensation during spermatogenesis.

Y Shimizu, K Mita, M Tamura, K Onitake and M Yamashita

Int. J. Dev. Biol. (2000) 44: 195-199

Colony-stimulating factor-1 (CSF-1) rescues osteoblast attachment, survival and sorting of beta-actin mRNA in the toothless (tl-osteopetrotic) mutation in the rat.

H Watanabe, C A MacKay, A Mason-Savas, E H Kislauskis and S C Marks

Int. J. Dev. Biol. (2000) 44: 201-207

Endocytosis and transcytosis in growing astrocytes in primary culture. Possible implications in neural development.

L Megias, C Guerri, E Fornas, I Azorin, E Bendala, M Sancho-Tello, J M Durán, M Tomás, M J Gomez-Lechon and J Renau-Piqueras

Int. J. Dev. Biol. (2000) 44: 209-221

Rapid disappearance of the medial epithelial seam during palatal fusion occurs by multifocal breakdown that is preceded by expression of alpha smooth muscle actin in the epithelium.

J R Gibbins, S Brent, M Srivastava, N Garibotto, Y M Tazawa, A Cameron and N Hunter

Int. J. Dev. Biol. (2000) 44: 223-231

The presence of rudimentary odontogenic structures in the mouse embryonic mandible requires reinterpretation of developmental control of first lower molar histomorphogenesis.

L Viriot, H Lesot, J L Vonesch, J V Ruch, M Peterka and R Peterková

Int. J. Dev. Biol. (2000) 44: 233-240

Short contributions

The meiotic specific synaptonemal complex protein SCP3 is expressed by female and male primordial germ cells of the mouse embryo.

A D Di Carlo, G Travia and M De Felici

Int. J. Dev. Biol. (2000) 44: 241-244

The cytoskeletal effector xPAK1 is expressed during both ear and lateral line development in Xenopus.

N Islam, L Poitras and T Moss

Int. J. Dev. Biol. (2000) 44: 245-248

Intestinal fatty acid binding protein gene expression reveals the cephalocaudal patterning during zebrafish gut morphogenesis.

M André, S Ando, C Ballagny, M Durliat, G Poupard, C Briançon and P J Babin

Int. J. Dev. Biol. (2000) 44: 249-252