Recherches sur l'expression des facteurs l�taux h�r�ditaires chez l'embryon de la drosophile

Imaizumi, Tadashi

doi:10.1007/bf01248208

Cited by 12 publications

References 9 publications

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Embryogenesis of Xyleborus ferrugineus (Fabr.) (Coleoptera, Scolytidae). I. External morphogenesis of male and female embryos

Beeman

Norris

1977

Journal of Morphology

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A description of the external morphogenesis of male and female embryos of X. ferrugineus, derived from in vivo observation, is presented here. The embryogenesis of this beetle is typical of the Coleoptera, and is also similar in most respects to the generalized insect plan. Observed unusual aspects of X. ferrugineus embryogenesis include the precocious formation of primordial g/rm cells and their temporary exclusion from somatic blastoderm; the precocious in situ delineation of gnathal metameres, the closing of the gastral groove beginning at both ends and proceeding towards its middle, the formation of several paired lateral amnio-serosal folds, the formation of cellular processes between the amnion and serosa, and the absorption of the thoracic limbs to produce an apodous larva. The embryonic developmental picture provided here, and the previously established means of rearing X. ferrugineus in controlled laboratory culture jointly provide a promising basis for the further use of this insect in developmental studies.

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Embryogenesis of Xyleborus ferrugineus (Fabr.) (Coleoptera, Scolytidae). I. External morphogenesis of male and female embryos

Beeman

Norris

1977

Journal of Morphology

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The formation and fate of the blastoderm epithelium of the Drosophila embryo

Warn

Robert‐Nicoud

1992

Epithelial Organization and Development

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Differential responses to ultraviolet irradiation of the polar cytoplasm ofDrosophila eggs

Graziosi

Micali

1974

W. Roux' Archiv f. Entwicklungsmechanik

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The posterior pole ofDrosophila melanogaster eggs was irradiated with ultraviolet light of 253.7 nm wavelength; different batches were irradiated at different times after oviposition, ranging from less than 10 mins to 125 mins. Two different experiments were run at different dose levels: 280 μW/mm and 530 μW/mm. A differential response to irrariation was observed in relation to the age of the treated eggs. Embryo mortality increased with egg age in both experiments (Fig. 1).No differential effects onlarval mortality were found in egg batches irradiated between 15 and 95 mins of age in either experiment (Fig. 3).The incidence ofsterility in the survivors was higher when the eggs were irradiated before 55 mins or when pole nuclei were present. The overall incidence of sterility was much higher in the high-dose experiment (Fig. 4).Sterility is considered as a measure of damage to germ cell precursors, most probably involving RNA. On this basis the probability of the affected RNA being messenger RNA stored in polar granules is discussed.

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Recherches sur l'expression des facteurs l�taux h�r�ditaires chez l'embryon de la drosophile

Cited by 12 publications

References 9 publications

Embryogenesis of Xyleborus ferrugineus (Fabr.) (Coleoptera, Scolytidae). I. External morphogenesis of male and female embryos

Embryogenesis of Xyleborus ferrugineus (Fabr.) (Coleoptera, Scolytidae). I. External morphogenesis of male and female embryos

The formation and fate of the blastoderm epithelium of the Drosophila embryo

Differential responses to ultraviolet irradiation of the polar cytoplasm ofDrosophila eggs

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