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A Study on mating compatibility of the biotypes of Anopheles stephensi.

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dc.contributor.author Liyanagedara, N.
dc.contributor.author Surendran, S.N.
dc.date.accessioned 2021-02-16T07:55:56Z
dc.date.accessioned 2022-07-07T09:16:01Z
dc.date.available 2021-02-16T07:55:56Z
dc.date.available 2022-07-07T09:16:01Z
dc.date.issued 2020
dc.identifier.issn 2550-2786
dc.identifier.uri http://repo.lib.jfn.ac.lk/ujrr/handle/123456789/1489
dc.description.abstract Malaria is a mosquito-borne disease that severely affects tropical and subtropical countries in Africa, Asia, and American continents. In 2017, Anopheles stephensi, a major malaria vector of urban malaria in Asia, was first detected in Mannar and later in 2018 in Jaffna. Anopheles stephensi exist as three biotypes viz type, intermediate, and mysorensis, which possess different vector potentiality and breeding preferences. The current study was performed to assess the mating compatibility of the biotypes. Biotypes were identified according to the egg morphology, such as the number of egg ridges, length of the eggs, and width of the eggs. The number of egg ridges in type, intermediate, and mysorensis was 14-22, 13-16, and 9-15 respectively. The type (T) and intermediate (I) biotypes were identified based on the number of egg ridges. They were maintained separately under laboratory conditions and subsequently used for cross-breeding experiments. Reciprocal breeding experiments were set up using 15 females and 8 males of each type. After a blood meal, eggs were collected on egg-laying surface and the number of egg ridges were counted for each cross. From T female (15) and I male (8) cross, 1 T and 3 I progeny were obtained. Where as in I female (15) and T male (8) cross, 2 T and 2 I progenies were obtained. These preliminary observations indicate that the biotypes are not reproductively isolated and can be regarded as ecotypes occupying different ecosystems. Further studies are warranted to establish this hypothesis. en_US
dc.publisher University of Jaffna en_US
dc.subject Anopheles stephensi en_US
dc.subject Biotypes en_US
dc.subject Egg ridges en_US
dc.subject Reproductive isolation en_US
dc.title A Study on mating compatibility of the biotypes of Anopheles stephensi. en_US
dc.type Article en_US


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