Wasps, beetles and the beginning of the ends

Article Abstract:

The investigation of the genes regulating early embryogenesis in the wasp Nasonia vitripennis and the beetle Tribollum castaneum have provided some clues as to how early development is controlled in insects other than higher dipterans such as Drosophila melanogaster. The results have shown that during the evolution of long-germ-band development, Nasonia and Drosophila might have evolved different mechanisms to pattern posterior segments, marginalizing the important role of the terminal system in short-germ-band embryos.

Beetles, Genetic research

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The quantitative genetic basis of polyandry in the parasitoid wasp, Nasonia vitripennis

Article Abstract:

The quantitative genetic basis of polyandry in the parasitoid wasp Nasonia vitripennis is explored. This work has highlighted that nonadditive genetic effects might influence the evolution of mating behavior in Nasonia vitripennis and the evolution of polyandry.

Sexual behavior, Polyandry

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In the beginning: the initiation of meiosis

Article Abstract:

The article discusses about the transition from mitotic to meiotic cell cycle or the initiation of meiosis is the most critical point of reproductive development in all sexually reproducing species.

Cell cycle, Reproduction (Biology), Meiosis, Reproduction

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