Isolation and Detection of Ingested DNA From the Immature Stages of Calliphora dubia (Diptera: Calliphoridae): A Forensically Important Blowfly
The forensic entomologist frequently bases time since death (TSD) estimation on fly larvae. In some cases, the food source on which these larvae have completed their development may be questionable, and requires verification to ensure the accuracy of the TSD estimation. Ingested DNA may be isolated...
| Main Authors: | , , , |
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| Format: | Journal Article |
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Humana Press Inc
2005
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| Online Access: | http://hdl.handle.net/20.500.11937/11899 |
| _version_ | 1848747927872208896 |
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| author | Carvalho, F. Dadour, I. Groth, David Harvey, M. |
| author_facet | Carvalho, F. Dadour, I. Groth, David Harvey, M. |
| author_sort | Carvalho, F. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The forensic entomologist frequently bases time since death (TSD) estimation on fly larvae. In some cases, the food source on which these larvae have completed their development may be questionable, and requires verification to ensure the accuracy of the TSD estimation. Ingested DNA may be isolated from the alimentary canal of immature insects. Previous studies have confirmed the ability to extract ingested DNA from the alimentary tract of third instar blowfly larvae. This study considers the potential to detect ingested DNA from immature stages of the bluebodied blowfly Calliphora dubia (Macquart) that had fed on sheep liver. Individuals from early first instar larvae through day 3 pupae were surface decontaminated, followed by DNA isolation and detection by amplifying the sheep satellite I region. Fragments of 197 basepairs (bp) and 87 bp were successfully isolated and detected in all stages of immatures until 2-day-old pupae, with detection at this stage being unsuccessful on 3-day-old pupae. This study presents a suitable protocol for the isolation and detection of ingested DNA from immature stages of C. dubia. |
| first_indexed | 2025-11-14T06:56:56Z |
| format | Journal Article |
| id | curtin-20.500.11937-11899 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:56:56Z |
| publishDate | 2005 |
| publisher | Humana Press Inc |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-118992017-01-30T11:27:31Z Isolation and Detection of Ingested DNA From the Immature Stages of Calliphora dubia (Diptera: Calliphoridae): A Forensically Important Blowfly Carvalho, F. Dadour, I. Groth, David Harvey, M. The forensic entomologist frequently bases time since death (TSD) estimation on fly larvae. In some cases, the food source on which these larvae have completed their development may be questionable, and requires verification to ensure the accuracy of the TSD estimation. Ingested DNA may be isolated from the alimentary canal of immature insects. Previous studies have confirmed the ability to extract ingested DNA from the alimentary tract of third instar blowfly larvae. This study considers the potential to detect ingested DNA from immature stages of the bluebodied blowfly Calliphora dubia (Macquart) that had fed on sheep liver. Individuals from early first instar larvae through day 3 pupae were surface decontaminated, followed by DNA isolation and detection by amplifying the sheep satellite I region. Fragments of 197 basepairs (bp) and 87 bp were successfully isolated and detected in all stages of immatures until 2-day-old pupae, with detection at this stage being unsuccessful on 3-day-old pupae. This study presents a suitable protocol for the isolation and detection of ingested DNA from immature stages of C. dubia. 2005 Journal Article http://hdl.handle.net/20.500.11937/11899 Humana Press Inc restricted |
| spellingShingle | Carvalho, F. Dadour, I. Groth, David Harvey, M. Isolation and Detection of Ingested DNA From the Immature Stages of Calliphora dubia (Diptera: Calliphoridae): A Forensically Important Blowfly |
| title | Isolation and Detection of Ingested DNA From the Immature Stages of Calliphora dubia (Diptera: Calliphoridae): A Forensically Important Blowfly |
| title_full | Isolation and Detection of Ingested DNA From the Immature Stages of Calliphora dubia (Diptera: Calliphoridae): A Forensically Important Blowfly |
| title_fullStr | Isolation and Detection of Ingested DNA From the Immature Stages of Calliphora dubia (Diptera: Calliphoridae): A Forensically Important Blowfly |
| title_full_unstemmed | Isolation and Detection of Ingested DNA From the Immature Stages of Calliphora dubia (Diptera: Calliphoridae): A Forensically Important Blowfly |
| title_short | Isolation and Detection of Ingested DNA From the Immature Stages of Calliphora dubia (Diptera: Calliphoridae): A Forensically Important Blowfly |
| title_sort | isolation and detection of ingested dna from the immature stages of calliphora dubia (diptera: calliphoridae): a forensically important blowfly |
| url | http://hdl.handle.net/20.500.11937/11899 |