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The roles and interactions of reproductive isolation mechanisms in fall armyworm (Lepidoptera: Noctuidae) host strains
Author(s) -
GROOT ASTRID T.,
MARR MELANIE,
HECKEL DAVID G.,
SCHÖFL GERHARD
Publication year - 2010
Publication title -
ecological entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.865
H-Index - 81
eISSN - 1365-2311
pISSN - 0307-6946
DOI - 10.1111/j.1365-2311.2009.01138.x
Subject(s) - reproductive isolation , biology , noctuidae , lepidoptera genitalia , ecological speciation , evolutionary biology , mating , host (biology) , insect , isolation (microbiology) , mating preferences , incipient speciation , genetic algorithm , sex pheromone , zoology , ecology , mate choice , genetics , gene flow , genetic variation , gene , population , demography , sociology , microbiology and biotechnology
1. The moth Spodoptera frugiperda presents an interesting opportunity to study the evolution of reproductive isolation, because it consists of two host races that may be in the process of speciation. 2. The two races exhibit habitat isolation through host‐plant preference, and two types of behavioural isolation, i.e. differences in sex pheromone composition and timing of mating activity at night. 3. In this paper, we review the selection pressures acting upon these three barriers as well as their genetic bases, to address the question of how divergence of the two strains may have evolved. 4. We also address possible interactions between the three barriers, whether and how they may have evolved in concert, and we view the evolution of these three prezygotic isolation barriers in the light of postzygotic isolation.