Additional evidence for the genomic imprinting model of sex determination in the haplodiploid wasp Nasonia vitripennis: Isolation of biparental diploid males after X-ray mutagenesis

Article Abstract:

A study offers a new, independent line of evidence for the genomic imprinting model of sex determination in the haplodiploid wasp Nasonia vitripennis. Results provide direct evidence for a paternally inherited gene that is required for sexual development in Nasonia females and is a candidate for the primary sex-determining signal in this species.

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Intergenomic interactions affect female reproduction: Evidence from introgression and inbreeding depression in a haplodiploid mite

Article Abstract:

The phenotypic effect of coadapted genes on female reproduction in outbred and inbred introgressed lines of the haplodiploid mite Tetranychus urticae is investigated. A control of fecundity by nuclear genes was suggested by introgression changed female lifetime fecundity and increased male production.

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Evolution of cooperation: The benefits of ridesharing

Article Abstract:

The most primitive biological systems can evolve the means to mediate reproductive conflict. A recent experiment has shown that one can watch it happen in viral parasite.

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