Allele Dmel\l(3)DTS31
| General Information | |||
|---|---|---|---|
| Symbol | Dmel\l(3)DTS31 | Species | D. melanogaster |
| Name | FlyBase ID | FBal0010842 | |
| Feature type | allele | Created / Updated | 2006-08-22/2006-08-22 |
| Associated gene | Dmel\l(3)DTS3 | ||
| Allele class | |||
| Mutagen | ethyl methanesulfonate | ||
Nature of the Allele
| |||
| Allele class | |||
| Mutagen | |||
| Mapped Features and Mutations | |||
Type Symbol & Location Additional Notes References | |||
| Associated Sequence Data | |||
| DDBJ
/
EMBL / GenBank | DNA sequence Protein sequence Name | ||
| UniProtKB/Swiss-Prot | |||
| UniProtKB/TrEMBL | |||
| Progenitor genotype | |||
| Nature of the lesion | Statement Reference | ||
| Assay mode | |||
| Cytology | |||
Phenotypic Data
| |||
Phenotypic Class
| |||
Phenotype Manifest In
| |||
larval salivary gland & embryo & nuclear chromosome | conditional ts | |||
Detailed Description
| |||
Statement Reference Lethal phase is during the third larval instar stage at 29oC. Heterozygous larvae raised at 29oC are arrested at the third larval instar stage for up to two weeks. They have grossly hypertrophied ring glands due to the growth of the prothoracic gland cells. The nuclei possess polytene chromosomes which are as large as those of salivary gland nuclei; their banding pattern is similar but not identical to that of salivary gland polytene chromosomes, but the puffing patterns are quite different. Salivary gland chromosomes also hypertrophy and lack the normal ecdysone-induced puffs. Heterozygotes die as third instar larvae at 29oC. The third instar larval stage may be prolonged for 14 days before death occurs. The temperature-sensitive period is during the second to third instar stage. After 5 days at the restrictive temperature (29.5oC), heterozygous females have an ecdysteroid titre approximately half that of wild-type flies. Egg hatchability decreases with the exposure time of the heterozygous mothers to 29.5oC until after 7-8 days no eggs hatched. This sterility is reversible; heterozygous females shifted to 22oC resume production of some hatchable eggs after 2 days. The lethal phase of the progeny of heterozygous females depends on the length of time the females are kept at the sublethal temperature of 27oC, indicating that the mutation shows a maternal effect. Yolk polypeptide mRNA and protein levels are not reduced in heterozygous females kept at the restrictive temperature. Mutant larvae develop relatively normally at the restrictive temperature of 29oC, but are unable to pupariate. Heterozygous female adults show a temperature dependent increase in longevity. At 29oC they show an increase of mean life-span of 42%. Males do not show a significant increase in life span at any of the temperatures tested. Heterozygous females show an increase in resistance to dry starvation; flies exposed to 29oC show an increase in mean survival time at 25oC of about 33% compared to controls. Males show no changes in resistance compared to controls. The increase in longevity seen in heterozygous females at 29oC is decreased in a dose-sensitive manner by feeding the flies 20-OH-ecdysone. The increased survival under dry starvation conditions of heterozygous females is also reversed by feeding the flies 20-OH-ecdysone. | |||
Interactions
| |||
Phenotypic Class
| |||
Phenotype Manifest In
| |||
Additional Comments
| |||
Genetic Interactions
| |||
Statement Reference | |||
Xenogenetic Interactions
| |||
Statement Reference | |||
Complementation & Rescue Data
| |||
| Comments | |||
Stocks
( 3 ) | |||
| Bloomington | 3014 | ||
| Kyoto | 106783 | ||
Notes on Origin
| |||
| Discoverer | |||
Synonyms & Secondary IDs
( 2 ) | |||
| Reported As | |||
| Symbol Synonym | l(3)DTS31 | ||
| Name Synonym | |||
| Secondary FlyBase IDs | |||
References
( 4 ) | |||
| Research paper |
| ||
Nature of the Allele