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.
| Original language | English |
|---|---|
| Article number | 206 |
| Journal | Parasites and Vectors |
| Volume | 6 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2013 |
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Keywords
- Aedes albopictus
- Containment
- Laboratory strain
- Mating affinity
- Wild strain
ASJC Scopus subject areas
- Parasitology
- Infectious Diseases
Cite this
Colonized Aedes albopictus and its sexual performance in the wild : Implications for SIT technology and containment. / Hamady, Dieng; Ruslan, Norrafiza Binti; Ahmad, Abu Hassan; Rawi, Che Salmah Md; Ahmad, Hamdan; Satho, Tomomitsu; Miake, Fumio; Zuharah, Wan Fatma; Fukumitsu, Yuki; Saad, Ahmad Ramli; Rajasaygar, Sudha; Vargas, Ronald Enrique Morales; Majid, Abdul Hafiz Ab; Fadzly, Nik; Abd. Ghani, Idris; Abubakar, Sazaly.
In: Parasites and Vectors, Vol. 6, No. 1, 206, 2013.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Colonized Aedes albopictus and its sexual performance in the wild
T2 - Implications for SIT technology and containment
AU - Hamady, Dieng
AU - Ruslan, Norrafiza Binti
AU - Ahmad, Abu Hassan
AU - Rawi, Che Salmah Md
AU - Ahmad, Hamdan
AU - Satho, Tomomitsu
AU - Miake, Fumio
AU - Zuharah, Wan Fatma
AU - Fukumitsu, Yuki
AU - Saad, Ahmad Ramli
AU - Rajasaygar, Sudha
AU - Vargas, Ronald Enrique Morales
AU - Majid, Abdul Hafiz Ab
AU - Fadzly, Nik
AU - Abd. Ghani, Idris
AU - Abubakar, Sazaly
PY - 2013
Y1 - 2013
N2 - 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.
AB - 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.
KW - Aedes albopictus
KW - Containment
KW - Laboratory strain
KW - Mating affinity
KW - Wild strain
UR - http://www.scopus.com/inward/record.url?scp=84880098046&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84880098046&partnerID=8YFLogxK
U2 - 10.1186/1756-3305-6-206
DO - 10.1186/1756-3305-6-206
M3 - Article
VL - 6
JO - Parasites and Vectors
JF - Parasites and Vectors
SN - 1756-3305
IS - 1
M1 - 206
ER -