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Double abdomen induction with low UV-doses inSmittia spec. (Chironomidae, diptera): Sensitive period and complete

Susan Ripley¹, Klaus Kalthoff¹

¹Department of Zoology, University of Texas, 78712, Austin, Texas, USA.

Wilhelm Roux'S Archives of Developmental Biology

|March 18, 2017

Abstract:

In embryos of the chironomid midgeSmittia spec., UV-irradiation of anterior pole regions results in double abdomen formation. In this abnormal body pattern, head and thorax are replaced by a mirror image of the abdomen. Irradiation at a particular stage between nuclear migration and blastoderm formation, and with the anterior pole facing the UV-beam, yields 100% double abdomens after a minimum UV-dose (140 J·m^-2 at 285 nm wavelength). By subsequent exposure to light of longer wavelength, embryos can be reprogrammed so that they develop normally again. The irradiation procedure described is suitable for programming large numbers of embryos for double abdomen formation, with a minimum of side effects and virtually complete photoreversibility.

Keywords:

Action spectrum Cytoplasmic RNP-particles Developmental pathways Embryonic pattern formation Morphogenetic determinants

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Articles linked to this work by shared authors, journal, and citation graph.

[Development of the malformation "double abdomen" in eggs of smittia parthenogenetica (dipt., chironomidae) partially irradiated by UV].

Wilhelm Roux' Archiv fur Entwicklungsmechanik der Organismen·2017

Position of targets and period of competence for UV-induction of the malformation "Double Abdomen" in the egg ofSmittia spec. (Diptera, Chironomidae).

Wilhelm Roux' Archiv fur Entwicklungsmechanik der Organismen·2017

Temperature effects on embryogenesis in Smittia spec. (Diptera, chironomidae): Q10-values of normal development and frequency of "double abdomens" after UV irradiation.

Wilhelm Roux' Archiv fur Entwicklungsmechanik der Organismen·2017

Mitochondria and polarity in the egg ofSmittia spec. (Diptera, Chironomidae): UV irradiation, respiration measurements, ATP determination and application of inhibitors.

Wilhelm Roux's archives of developmental biology·2017

RNA and protein synthesis in developing embryos ofSmittia spec. (Chironomidae, Diptera).

Wilhelm Roux's archives of developmental biology·2017

Changes in the apparent localization of anterior determinants during early embryogenesis (Smittia spec., Chironomidae, Diptera).

Wilhelm Roux's archives of developmental biology·2017

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