Molecular evidence of incipient speciation within Anopheles gambiae s.s. in West Africa.
We karyotyped and identified by polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) analysis Anopheles gambiae s.s. samples collected in several African countries. The data show the existence of two non-panmictic molecular forms, named S and M, whose distribution extended f...
| Main Authors: | , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2001
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| _version_ | 1797065152207519744 |
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| author | della Torre, A Fanello, C Akogbeto, M Dossou-yovo, J Favia, G Petrarca, V Coluzzi, M |
| author_facet | della Torre, A Fanello, C Akogbeto, M Dossou-yovo, J Favia, G Petrarca, V Coluzzi, M |
| author_sort | della Torre, A |
| collection | OXFORD |
| description | We karyotyped and identified by polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) analysis Anopheles gambiae s.s. samples collected in several African countries. The data show the existence of two non-panmictic molecular forms, named S and M, whose distribution extended from forest to savannahs. Mosquitoes of the S and M forms are homosequential standard for chromosome-2 inversions in forest areas. In dry savannahs, S is characterized mainly by inversion polymorphisms typical of Savanna and Bamako chromosomal forms, while M shows chromosome-2 arrangements typical of Mopti and/or Savanna and/or Bissau, depending on its geographical origin. Chromosome-2 inversions therefore seem to be involved in ecotypic adaptation rather than in mate-recognition systems. Strong support for the reproductive isolation of S and M in Ivory Coast comes from the observation that the kdr allele is found at high frequencies in S specimens and not at all in chromosomal identical M specimens. However, the kdr allele does not segregate with molecular forms in Benin. |
| first_indexed | 2024-03-06T21:24:33Z |
| format | Journal article |
| id | oxford-uuid:42a32fd8-de97-403d-b12f-c74ab535e884 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T21:24:33Z |
| publishDate | 2001 |
| record_format | dspace |
| spelling | oxford-uuid:42a32fd8-de97-403d-b12f-c74ab535e8842022-03-26T14:50:42ZMolecular evidence of incipient speciation within Anopheles gambiae s.s. in West Africa.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:42a32fd8-de97-403d-b12f-c74ab535e884EnglishSymplectic Elements at Oxford2001della Torre, AFanello, CAkogbeto, MDossou-yovo, JFavia, GPetrarca, VColuzzi, MWe karyotyped and identified by polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) analysis Anopheles gambiae s.s. samples collected in several African countries. The data show the existence of two non-panmictic molecular forms, named S and M, whose distribution extended from forest to savannahs. Mosquitoes of the S and M forms are homosequential standard for chromosome-2 inversions in forest areas. In dry savannahs, S is characterized mainly by inversion polymorphisms typical of Savanna and Bamako chromosomal forms, while M shows chromosome-2 arrangements typical of Mopti and/or Savanna and/or Bissau, depending on its geographical origin. Chromosome-2 inversions therefore seem to be involved in ecotypic adaptation rather than in mate-recognition systems. Strong support for the reproductive isolation of S and M in Ivory Coast comes from the observation that the kdr allele is found at high frequencies in S specimens and not at all in chromosomal identical M specimens. However, the kdr allele does not segregate with molecular forms in Benin. |
| spellingShingle | della Torre, A Fanello, C Akogbeto, M Dossou-yovo, J Favia, G Petrarca, V Coluzzi, M Molecular evidence of incipient speciation within Anopheles gambiae s.s. in West Africa. |
| title | Molecular evidence of incipient speciation within Anopheles gambiae s.s. in West Africa. |
| title_full | Molecular evidence of incipient speciation within Anopheles gambiae s.s. in West Africa. |
| title_fullStr | Molecular evidence of incipient speciation within Anopheles gambiae s.s. in West Africa. |
| title_full_unstemmed | Molecular evidence of incipient speciation within Anopheles gambiae s.s. in West Africa. |
| title_short | Molecular evidence of incipient speciation within Anopheles gambiae s.s. in West Africa. |
| title_sort | molecular evidence of incipient speciation within anopheles gambiae s s in west africa |
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