Colonized Aedes albopictus and its sexual performance in the wild: Implications for SIT technology and containment
Abstract BACKGROUND: Mating is a physiological process of crucial importance underlying the size and maintenance of mosquito populations. In sterile and incompatible insect technologies (SIT and IIT), mating is essential for mass production, persistence, and success of released individuals, and is...
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| Format: | Article |
| Language: | English |
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licensee BioMed Central Ltd.
2013
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| Online Access: | http://ir.unimas.my/id/eprint/9818/ http://ir.unimas.my/id/eprint/9818/1/Dieng.pdf |
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| author | Dieng, Hamady Norrafiza, Binti Ruslan Abu Hassan, Ahmad Che Salmah, Md Rawi Hamdan, Ahmad Tomomitsu, Satho Fumio, Miake Wan, Fatma Zuharah Yuki, Fukumitsu Ahmad Ramli, Saad Sudha, Rajasaygar Ronald Enrique, Morales Vargas Abdul Hafiz, Ab Majid Nik, Fadzly Idris, Abd Ghani Sazaly, AbuBakar |
| author_facet | Dieng, Hamady Norrafiza, Binti Ruslan Abu Hassan, Ahmad Che Salmah, Md Rawi Hamdan, Ahmad Tomomitsu, Satho Fumio, Miake Wan, Fatma Zuharah Yuki, Fukumitsu Ahmad Ramli, Saad Sudha, Rajasaygar Ronald Enrique, Morales Vargas Abdul Hafiz, Ab Majid Nik, Fadzly Idris, Abd Ghani Sazaly, AbuBakar |
| author_sort | Dieng, Hamady |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | Abstract
BACKGROUND:
Mating is a physiological process of crucial importance underlying the size and maintenance of mosquito populations. In sterile and incompatible insect technologies (SIT and IIT), mating is essential for mass production, persistence, and success of released individuals, and is a central parameter for judging the effectiveness of SIT/IIT programs. Some mosquitoes have an enormous reproductive potential for both themselves and pathogens and mating may contribute to persistence of infection in nature. As Aedes albopictus can transmit flaviviruses both sexually and horizontally, and as infected insects are usually derived from laboratory colonies, we investigated the implications of mating between a long-term laboratory colony of Ae. albopictus and wild populations.
METHODS:
Through a series of mating experiments, we examined the reproductive outcomes of sexual cross-affinity between laboratory-raised and wild adults of Ae. albopictus.
RESULTS:
The results indicated appreciable mating compatibility between laboratory-reared and wild adults, and equivalent levels of egg production among reciprocal crosses. We also observed comparable larval eclosion in lab females mated with wild males, and increased adult longevity in female offspring from wild females|×|laboratory males crosses.
CONCLUSIONS:
Taken together, these data suggest that Ae. albopictus can preserve its reproductive fitness over a long period of time in the laboratory environment and has valuable attributes for SIT application. These observations together with the ability to successfully inseminate heterospecific females indicate the potential of Ae. albopictus to act as an ecological barrier if non-sterilized males are massively released in areas occupied by Aedes aegypti. The observed substantial reproductive fitness combined with the capability to reproduce both, itself and viruses illustrates the potential of Ae. albopictus to pose a serious threat if infected and released accidentally. |
| first_indexed | 2025-11-15T06:27:01Z |
| format | Article |
| id | unimas-9818 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T06:27:01Z |
| publishDate | 2013 |
| publisher | licensee BioMed Central Ltd. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-98182022-01-25T01:41:53Z http://ir.unimas.my/id/eprint/9818/ Colonized Aedes albopictus and its sexual performance in the wild: Implications for SIT technology and containment Dieng, Hamady Norrafiza, Binti Ruslan Abu Hassan, Ahmad Che Salmah, Md Rawi Hamdan, Ahmad Tomomitsu, Satho Fumio, Miake Wan, Fatma Zuharah Yuki, Fukumitsu Ahmad Ramli, Saad Sudha, Rajasaygar Ronald Enrique, Morales Vargas Abdul Hafiz, Ab Majid Nik, Fadzly Idris, Abd Ghani Sazaly, AbuBakar QR Microbiology RA Public aspects of medicine Abstract BACKGROUND: Mating is a physiological process of crucial importance underlying the size and maintenance of mosquito populations. In sterile and incompatible insect technologies (SIT and IIT), mating is essential for mass production, persistence, and success of released individuals, and is a central parameter for judging the effectiveness of SIT/IIT programs. Some mosquitoes have an enormous reproductive potential for both themselves and pathogens and mating may contribute to persistence of infection in nature. As Aedes albopictus can transmit flaviviruses both sexually and horizontally, and as infected insects are usually derived from laboratory colonies, we investigated the implications of mating between a long-term laboratory colony of Ae. albopictus and wild populations. METHODS: Through a series of mating experiments, we examined the reproductive outcomes of sexual cross-affinity between laboratory-raised and wild adults of Ae. albopictus. RESULTS: The results indicated appreciable mating compatibility between laboratory-reared and wild adults, and equivalent levels of egg production among reciprocal crosses. We also observed comparable larval eclosion in lab females mated with wild males, and increased adult longevity in female offspring from wild females|×|laboratory males crosses. CONCLUSIONS: Taken together, these data suggest that Ae. albopictus can preserve its reproductive fitness over a long period of time in the laboratory environment and has valuable attributes for SIT application. These observations together with the ability to successfully inseminate heterospecific females indicate the potential of Ae. albopictus to act as an ecological barrier if non-sterilized males are massively released in areas occupied by Aedes aegypti. The observed substantial reproductive fitness combined with the capability to reproduce both, itself and viruses illustrates the potential of Ae. albopictus to pose a serious threat if infected and released accidentally. licensee BioMed Central Ltd. 2013 Article NonPeerReviewed text en http://ir.unimas.my/id/eprint/9818/1/Dieng.pdf Dieng, Hamady and Norrafiza, Binti Ruslan and Abu Hassan, Ahmad and Che Salmah, Md Rawi and Hamdan, Ahmad and Tomomitsu, Satho and Fumio, Miake and Wan, Fatma Zuharah and Yuki, Fukumitsu and Ahmad Ramli, Saad and Sudha, Rajasaygar and Ronald Enrique, Morales Vargas and Abdul Hafiz, Ab Majid and Nik, Fadzly and Idris, Abd Ghani and Sazaly, AbuBakar (2013) Colonized Aedes albopictus and its sexual performance in the wild: Implications for SIT technology and containment. Parasites & Vectors, 6. p. 206. http://www.parasitesandvectors.com/content/6/1/206 doi:10.1186/1756-3305-6-206 |
| spellingShingle | QR Microbiology RA Public aspects of medicine Dieng, Hamady Norrafiza, Binti Ruslan Abu Hassan, Ahmad Che Salmah, Md Rawi Hamdan, Ahmad Tomomitsu, Satho Fumio, Miake Wan, Fatma Zuharah Yuki, Fukumitsu Ahmad Ramli, Saad Sudha, Rajasaygar Ronald Enrique, Morales Vargas Abdul Hafiz, Ab Majid Nik, Fadzly Idris, Abd Ghani Sazaly, AbuBakar Colonized Aedes albopictus and its sexual performance in the wild: Implications for SIT technology and containment |
| title | Colonized Aedes albopictus and its sexual performance in the wild: Implications for SIT technology and containment |
| title_full | Colonized Aedes albopictus and its sexual performance in the wild: Implications for SIT technology and containment |
| title_fullStr | Colonized Aedes albopictus and its sexual performance in the wild: Implications for SIT technology and containment |
| title_full_unstemmed | Colonized Aedes albopictus and its sexual performance in the wild: Implications for SIT technology and containment |
| title_short | Colonized Aedes albopictus and its sexual performance in the wild: Implications for SIT technology and containment |
| title_sort | colonized aedes albopictus and its sexual performance in the wild: implications for sit technology and containment |
| topic | QR Microbiology RA Public aspects of medicine |
| url | http://ir.unimas.my/id/eprint/9818/ http://ir.unimas.my/id/eprint/9818/ http://ir.unimas.my/id/eprint/9818/ http://ir.unimas.my/id/eprint/9818/1/Dieng.pdf |