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    Morphological, molecular and crossbreeding analysis of geographic populations of coconutmite associated predatory mites identified as Neoseiulus baraki: evidence for cryptic species?

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    Date
    2012
    Author
    Sourassou, N.F.
    Hanna, R.
    Zannou, I.
    Breeuwer, J.A.
    Moraes, G. de
    Sabelis, M.
    Type
    Journal Article
    Metadata
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    Abstract/Description
    Surveys were conducted in Brazil, Benin and Tanzania to collect predatory mites as candidates for control of the coconut mite Aceria guerreronis Keifer, a serious pest of coconut fruits. At all locations surveyed, one of the most dominant predators on infested coconut fruits was identified as Neoseiulus baraki Athias-Henriot, based on morphological similarity with regard to taxonomically relevant characters. However, scrutiny of our own and published descriptions suggests that consistent morphological differences may exist between the Benin population and those from the other geographic origins. In this study, we combined three methods to assess whether these populations belong to one species or a few distinct, yet closely related species. First, multivariate analysis of 32 morphological characters showed that the Benin population differed from the other three populations. Second, DNA sequence analysis based on the mitochondrial cytochrome oxidase subunit I (COI) showed the same difference between these populations. Third, cross-breeding between populations was unsuccessful in all combinations. These data provide evidence for the existence of cryptic species. Subsequent morphological research showed that the Benin population can be distinguished from the others by a new character (not included in the multivariate analysis), viz. the number of teeth on the fixed digit of the female chelicera.
    http://dx.doi.org/10.1007/s10493-012-9534-0
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/1804
    Digital Object Identifier (DOI)
    http://dx.doi.org/10.1007/s10493-012-9534-0
    IITA Subjects
    Pests Of Plants
    Agrovoc Terms
    Biological Control; Coconut Mite; Phytoseiidae; Morphometry; Incompatibility; Coi; Species Diversity
    Regions
    Africa; South America; West Africa; East Africa
    Countries
    Brazil; Benin; Tanzania
    Journals
    Experimental and Applied Acarology
    Collections
    • Journal and Journal Articles5283
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