Abstract
Chromosome numbers, meiosis and sex-determining mechanisms of three species of Chrysomelidae (Coleoptera) were studied. They belong to the tribe Stolaini of Neotropical Cassidinae. Stolas lacordairei and Botanochara sp. have high chromosome numbers (2n=30♂), the first with a primitive coleopteran sex chromosome system Xy p and the other with a very complex one X 1 p X 2 p neo Xneo Y. Botanochara bonariensis shows an even higher chromosome number (2n=44♂) and multiple sex chromosomes as does B. sp. The possible tendencies in the karyological evolution of the Stolaine Cassidines are discussed.
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Panzera, F., Mazzella, M.C. & De Vaio, E.S. Cytological studies on three species of neotropical cassidines (Coleoptera, Chrysomelidae). Genetica 62, 61–68 (1983). https://doi.org/10.1007/BF00123312
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DOI: https://doi.org/10.1007/BF00123312