Suitability of the species from the genus Mecinus Germar, 1821 (Curculionidae, Mecininae) for biological control of invasive weeds from the genus Linaria Mill. (Scrophulariaceae). [Doctoral dissertation] | Pogodnost vrsta roda Mecinus Germar, 1821 (Curculionidae, Mecininae) za biolosko suzbijanje invazivnih vrsta iz roda Linaria Mill. (Scrophulariaceae). Doktorska disertacija
2008
Tosevski, I.
Based on bionomical, morphological, molecular and phylogenetic studies of the genus Mecinus as potential agents for biological control of invasive weeds from the genus Linaria, a total of five species had been recorded on the territory of Balkan, out of which two are new. Between populations of M. janthius Germar, 1821 that inhabit different host plants, two different biological entities have been recorded, followed by conspicuous genetic divergence between populations on mitochondrial cytochrom oxidase b, subunit II gene (COII) in range between 1.3-2.5% M. janthinus s.s. is associated with L. vulgaris, while M. cf. janthinus sp. nov. with L. genistifolia, L. dalmatica ssp. macedonica and L. linifolia. Within M. heydeni Wencker, 1866 three different entities had been recorded based on bionomical and morphological peculiarities. Genetic divergence on COII gene between M. heydeni s.s. inhabiting L. vulgaris and M. laeviceps Tournier 1873 associated with L. genistifolia was estimated at about 11% while about 6% divergence between M. cf. laeviceps sp. nov. associated with L. dalmatica ssp. macedonica. Bioecological characteristics and high specialisation to their host plants positioned all Mecinus species as potential and suitable agents for biological control in invasive weeds from the genus Linaria.
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