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  • Title: Deep Interisland Genetic Divergence in the Macaronesian Endemic Mosquito Ochlerotatus eatoni (Diptera: Culicidae), Indication of Cryptic Species.
    Author: Khadem M.
    Journal: J Med Entomol; 2015 Sep; 52(5):1175-80. PubMed ID: 26336234.
    Abstract:
    Ochlerotatus eatoni (Edwards, 1916) is a species endemic to Canary and Madeira Islands that, based on morphology, is considered to be single species. Mitochondrial 16S rRNA and cytochrome oxidase I (COI) sequence data demonstrate that the populations from Tenerife and Madeira Islands are highly differentiated (F(ST) = 0.93). The phylogenetic analysis also separates the two populations into two highly distinct groups. The sharp mitochondrial genetic differentiation between islands is congruent with the published nuclear (allozyme) data. However, mtDNA data did not reveal any significant genetic differentiation within islands. Extreme interisland genetic divergence, but lack of morphological variation, is indicative of the existence of cryptic species. I suggest the elevation of populations to at least incipient species status, designating the populations from Tenerife and Madeira Islands as Oc. eatoni. hewitti and Oc. eatoni. krimbasi, respectively.
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