{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T20:38:07Z","timestamp":1792787887399,"version":"4.5.0"},"reference-count":48,"publisher":"Public Library of Science (PLoS)","issue":"11","license":[{"start":{"date-parts":[[2020,11,18]],"date-time":"2020-11-18T00:00:00Z","timestamp":1605657600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100010666","name":"H2020 Research Infrastructures","doi-asserted-by":"publisher","award":["H2020-INFRAIA-2016-2017"],"award-info":[{"award-number":["H2020-INFRAIA-2016-2017"]}],"id":[{"id":"10.13039\/100010666","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:p><jats:italic>Aedes aegypti<\/jats:italic> is the primary vector of dengue, Zika, yellow fever and chikungunya viruses to humans. In Africa, two subspecies, <jats:italic>Ae<\/jats:italic>. <jats:italic>aegypti aegypti<\/jats:italic> (<jats:italic>Aaa<\/jats:italic>) and <jats:italic>Ae<\/jats:italic>. <jats:italic>aegypti formosus<\/jats:italic> (<jats:italic>Aaf<\/jats:italic>) have been described. Until very recently, it was considered that the two forms were sympatric in East Africa and that only <jats:italic>Aaf<\/jats:italic> was present in Central and West Africa. However, recent data suggests that <jats:italic>Aaa<\/jats:italic> was also common in Senegal without any clear evidence of genetic differences with <jats:italic>Aaf<\/jats:italic>. This study was carried out in different <jats:italic>Ae<\/jats:italic>. <jats:italic>aegypti<\/jats:italic> populations from Senegal to better clarify their taxonomic status. The larvae, pupae and eggs were collected between July and September 2018 and reared individually to adult stage. For each population, F<jats:sub>1<\/jats:sub> progeny from eggs laid by a single female F<jats:sub>0<\/jats:sub> were reared as sibling samples. The number of pale scales on the first abdominal tergite (T<jats:sub>1<\/jats:sub>) and the basal part of the second tergite (T<jats:sub>2<\/jats:sub>) were counted. Individuals with no pale scale on T<jats:sub>1<\/jats:sub> were classified as <jats:italic>Aaf<\/jats:italic> while those with at least one pale scale on this tergite were classified as <jats:italic>Aaa<\/jats:italic>. The morphological variations within families of <jats:italic>Aaf<\/jats:italic> were studied across 4 generations. In total, 2400 individuals constituting 240 families were identified, of which 42.5% were heterogeneous (families with both forms). Multivariate statistical analysis of variance including T<jats:sub>1<\/jats:sub> and T<jats:sub>2<\/jats:sub> data together showed that populations were significantly different from each other. Statistical analysis of T<jats:sub>1<\/jats:sub> alone showed a similarity between populations from the southeast while variations were observed within northwest population. The analysis of family composition across generations showed the presence of <jats:italic>Aaa<\/jats:italic> and <jats:italic>Aaf<\/jats:italic> forms in each generation. The classification of <jats:italic>Ae<\/jats:italic>. <jats:italic>aegypti<\/jats:italic> into two subspecies is invalid in Senegal. Populations exhibit morphological polymorphism at the intra-family level that could have biological and epidemiological impacts.<\/jats:p>","DOI":"10.1371\/journal.pone.0242576","type":"journal-article","created":{"date-parts":[[2020,11,18]],"date-time":"2020-11-18T19:03:45Z","timestamp":1605726225000},"page":"e0242576","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":21,"title":["Morphology and taxonomic status of Aedes aegypti populations across Senegal"],"prefix":"10.1371","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8629-4278","authenticated-orcid":true,"given":"Babacar","family":"Diouf","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ibrahima","family":"Dia","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ndeye Marie","family":"Sene","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"El Hadji","family":"Ndiaye","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mawlouth","family":"Diallo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Diawo","family":"Diallo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2020,11,18]]},"reference":[{"key":"pone.0242576.ref001","doi-asserted-by":"crossref","first-page":"789","DOI":"10.1038\/nrmicro1006","article-title":"Transmission cycles, host range, evolution and emergence of arboviral disease","volume":"2","author":"SC Weaver","year":"2004","journal-title":"Nat Rev Microbiol"},{"key":"pone.0242576.ref002","doi-asserted-by":"crossref","first-page":"87","DOI":"10.1016\/B978-0-12-811865-8.00004-0","volume-title":"Chikungunya and Zika Viruses","author":"D Diallo","year":"2018"},{"key":"pone.0242576.ref003","doi-asserted-by":"crossref","first-page":"504","DOI":"10.1038\/nature12060","article-title":"The global distribution and burden of dengue","volume":"496","author":"S Bhatt","year":"2013","journal-title":"Nature"},{"key":"#cr-split#-pone.0242576.ref004.1","unstructured":"WHO. 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