DIRECT AND CORRELATED RESPONSES TO SELECTION AMONG LIFE‐HISTORY TRAITS IN MILKWEED BUGS ( ONCOPELTUS FASCIATUS )
نویسندگان
چکیده
منابع مشابه
Development and determination of hairs and bristles in the milkweed bug, Oncopeltus fasciatus (Lygaeidae, Hemiptera).
The term' organule' is proposed as an English equivalent for the German word' Kleinorgan'. The different organules on the third sternite of Oncopeltus are described: larvae possess innervated bristles and special sensilla termed 'chemosensilla', whereas the adult develops, in addition, a dense population of non-innervated hairs. The hairs, bristles and 'chemosensilla' each develop from mother c...
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Leptomonas wallacei is a trypanosomatid that develops promastigotes and cystic forms in the gut of the hemipteran insect Oncopeltus fasciatus. Insect trypanosomatids are thought to be solely transmitted from one host to another through the ingestion of parasite-contaminated feces. However, here we show that L. wallacei cysts present on the eggshells of eggs laid by O. fasciatus can also act as ...
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We describe the dynamic process of abdominal segment generation in the milkweed bug Oncopeltus fasciatus We present detailed morphological measurements of the growing germband throughout segmentation. Our data are complemented by cell division profiles and expression patterns of key genes, including invected and even-skipped as markers for different stages of segment formation. We describe morp...
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The body axes of many animals are initially patterned by the asymmetric distribution of maternal mRNAs and proteins in the oocyte. In Drosophila, these maternal factors are synthesized by the 15 nurse cells that connect to each oocyte within the ovary. However, insect ovaries fall into three anatomical categories, of which Drosophila represents only one. The telotrophic meroistic ovaries of the...
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ژورنال
عنوان ژورنال: Evolution
سال: 1986
ISSN: 0014-3820,1558-5646
DOI: 10.1111/j.1558-5646.1986.tb00536.x