Analysis of a newly-isolated temperature sensitive maternal effect mutation ofDrosophila melanogaster
- 1 May 1977
- journal article
- research article
- Published by Wiley in Journal of Experimental Zoology
- Vol. 200 (2), 199-209
- https://doi.org/10.1002/jez.1402000202
Abstract
A mutation located near the tip of the X chromosome in Drosophila melanogaster has been isolated, and its developmental effects described. This mutation (1(1)ts‐1) is temperature sensitive, and at permissive temperature (18°C) develops normally. However, zygotes from females raised or aged at restrictive temperature (28°C) never hatch, regardless of the embryonic genotype. Midgut formation is abnormal in lethal zygotes and dorsal closure is probably incomplete. Temperature shift experiments have shown that the zygotic lethality is governed by a temperature sensitive period in oocytes of stage seven or older. If viable 1(1)ts‐1 embryos are shifted to restrictive temperatures, they develop as far as the pupal stage, but never eclose. The temperature sensitive period for pupal lethality includes the last 2.5 days of pupal development and does not involve a maternal effect.This publication has 11 references indexed in Scilit:
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