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Temperature-Sensitive Mutations in Drosophila melanogaster , VIII. The Homeotic Mutant, ss a40a
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Zeitschriftentitel: | Proceedings of the National Academy of Sciences |
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Personen und Körperschaften: | , |
In: | Proceedings of the National Academy of Sciences, 68, 1971, 6, S. 1307-1311 |
Format: | E-Article |
Sprache: | Englisch |
veröffentlicht: |
Proceedings of the National Academy of Sciences
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Schlagwörter: |
author_facet |
Grigliatti, Thomas Suzuki, David T. Grigliatti, Thomas Suzuki, David T. |
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author |
Grigliatti, Thomas Suzuki, David T. |
spellingShingle |
Grigliatti, Thomas Suzuki, David T. Proceedings of the National Academy of Sciences Temperature-Sensitive Mutations in Drosophila melanogaster , VIII. The Homeotic Mutant, ss a40a Multidisciplinary |
author_sort |
grigliatti, thomas |
spelling |
Grigliatti, Thomas Suzuki, David T. 0027-8424 1091-6490 Proceedings of the National Academy of Sciences Multidisciplinary http://dx.doi.org/10.1073/pnas.68.6.1307 <jats:p> There exists in <jats:italic>Drosophila</jats:italic> a class of mutations called “homeotic” that cause changes in determination of the imaginal discs. The homeotic mutant, <jats:italic> ss <jats:sup>a40a</jats:sup> </jats:italic> , was found to have a temperature-sensitive transformation of the arista segment of the antennal complex to a tarsus of the leg. In a selected stock penetrance was complete, so that at 29°C normal aristae were produced, whereas at 17°C complete tarsi developed in all flies. “Temperature-shift” studies revealed a temperature-sensitive period in the third larval instar. The temperature-initiated action of <jats:italic> ss <jats:sup>a40a</jats:sup> </jats:italic> does not appear to result from a simple wave or gradient of determination passing through the disc. Shifts up during the temperature-sensitive period yielded leg tissue proximally, which increased distally with progressively later shifts. Shifts down yielded leg tissue at the aristal base, which retreated with later shifts. </jats:p> Temperature-Sensitive Mutations in <i>Drosophila melanogaster</i> , VIII. The Homeotic Mutant, <i> ss <sup>a40a</sup> </i> Proceedings of the National Academy of Sciences |
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title |
Temperature-Sensitive Mutations in Drosophila melanogaster , VIII. The Homeotic Mutant, ss a40a |
title_unstemmed |
Temperature-Sensitive Mutations in Drosophila melanogaster , VIII. The Homeotic Mutant, ss a40a |
title_full |
Temperature-Sensitive Mutations in Drosophila melanogaster , VIII. The Homeotic Mutant, ss a40a |
title_fullStr |
Temperature-Sensitive Mutations in Drosophila melanogaster , VIII. The Homeotic Mutant, ss a40a |
title_full_unstemmed |
Temperature-Sensitive Mutations in Drosophila melanogaster , VIII. The Homeotic Mutant, ss a40a |
title_short |
Temperature-Sensitive Mutations in Drosophila melanogaster , VIII. The Homeotic Mutant, ss a40a |
title_sort |
temperature-sensitive mutations in
<i>drosophila melanogaster</i>
, viii. the homeotic mutant,
<i>
ss
<sup>a40a</sup>
</i> |
topic |
Multidisciplinary |
url |
http://dx.doi.org/10.1073/pnas.68.6.1307 |
publishDate |
1971 |
physical |
1307-1311 |
description |
<jats:p>
There exists in
<jats:italic>Drosophila</jats:italic>
a class of mutations called “homeotic” that cause changes in determination of the imaginal discs. The homeotic mutant,
<jats:italic>
ss
<jats:sup>a40a</jats:sup>
</jats:italic>
, was found to have a temperature-sensitive transformation of the arista segment of the antennal complex to a tarsus of the leg. In a selected stock penetrance was complete, so that at 29°C normal aristae were produced, whereas at 17°C complete tarsi developed in all flies. “Temperature-shift” studies revealed a temperature-sensitive period in the third larval instar. The temperature-initiated action of
<jats:italic>
ss
<jats:sup>a40a</jats:sup>
</jats:italic>
does not appear to result from a simple wave or gradient of determination passing through the disc. Shifts up during the temperature-sensitive period yielded leg tissue proximally, which increased distally with progressively later shifts. Shifts down yielded leg tissue at the aristal base, which retreated with later shifts.
</jats:p> |
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author | Grigliatti, Thomas, Suzuki, David T. |
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description | <jats:p> There exists in <jats:italic>Drosophila</jats:italic> a class of mutations called “homeotic” that cause changes in determination of the imaginal discs. The homeotic mutant, <jats:italic> ss <jats:sup>a40a</jats:sup> </jats:italic> , was found to have a temperature-sensitive transformation of the arista segment of the antennal complex to a tarsus of the leg. In a selected stock penetrance was complete, so that at 29°C normal aristae were produced, whereas at 17°C complete tarsi developed in all flies. “Temperature-shift” studies revealed a temperature-sensitive period in the third larval instar. The temperature-initiated action of <jats:italic> ss <jats:sup>a40a</jats:sup> </jats:italic> does not appear to result from a simple wave or gradient of determination passing through the disc. Shifts up during the temperature-sensitive period yielded leg tissue proximally, which increased distally with progressively later shifts. Shifts down yielded leg tissue at the aristal base, which retreated with later shifts. </jats:p> |
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spelling | Grigliatti, Thomas Suzuki, David T. 0027-8424 1091-6490 Proceedings of the National Academy of Sciences Multidisciplinary http://dx.doi.org/10.1073/pnas.68.6.1307 <jats:p> There exists in <jats:italic>Drosophila</jats:italic> a class of mutations called “homeotic” that cause changes in determination of the imaginal discs. The homeotic mutant, <jats:italic> ss <jats:sup>a40a</jats:sup> </jats:italic> , was found to have a temperature-sensitive transformation of the arista segment of the antennal complex to a tarsus of the leg. In a selected stock penetrance was complete, so that at 29°C normal aristae were produced, whereas at 17°C complete tarsi developed in all flies. “Temperature-shift” studies revealed a temperature-sensitive period in the third larval instar. The temperature-initiated action of <jats:italic> ss <jats:sup>a40a</jats:sup> </jats:italic> does not appear to result from a simple wave or gradient of determination passing through the disc. Shifts up during the temperature-sensitive period yielded leg tissue proximally, which increased distally with progressively later shifts. Shifts down yielded leg tissue at the aristal base, which retreated with later shifts. </jats:p> Temperature-Sensitive Mutations in <i>Drosophila melanogaster</i> , VIII. The Homeotic Mutant, <i> ss <sup>a40a</sup> </i> Proceedings of the National Academy of Sciences |
spellingShingle | Grigliatti, Thomas, Suzuki, David T., Proceedings of the National Academy of Sciences, Temperature-Sensitive Mutations in Drosophila melanogaster , VIII. The Homeotic Mutant, ss a40a , Multidisciplinary |
title | Temperature-Sensitive Mutations in Drosophila melanogaster , VIII. The Homeotic Mutant, ss a40a |
title_full | Temperature-Sensitive Mutations in Drosophila melanogaster , VIII. The Homeotic Mutant, ss a40a |
title_fullStr | Temperature-Sensitive Mutations in Drosophila melanogaster , VIII. The Homeotic Mutant, ss a40a |
title_full_unstemmed | Temperature-Sensitive Mutations in Drosophila melanogaster , VIII. The Homeotic Mutant, ss a40a |
title_short | Temperature-Sensitive Mutations in Drosophila melanogaster , VIII. The Homeotic Mutant, ss a40a |
title_sort | temperature-sensitive mutations in <i>drosophila melanogaster</i> , viii. the homeotic mutant, <i> ss <sup>a40a</sup> </i> |
title_unstemmed | Temperature-Sensitive Mutations in Drosophila melanogaster , VIII. The Homeotic Mutant, ss a40a |
topic | Multidisciplinary |
url | http://dx.doi.org/10.1073/pnas.68.6.1307 |