Androgenesis: where males hijack eggs to clone themselves
نویسندگان
چکیده
منابع مشابه
Males of the orb-web spider Argiope bruennichi sacrifice themselves to unrelated females.
Costs of inbreeding can lead to total reproductive failure and inbreeding avoidance is, therefore, common. In classical sex roles with no paternal care, the selective pressure to avoid inbreeding is mostly on the female, which carries the higher costs. In some orb-web spiders, this situation is very different because females are polyandrous and males are monogynous or at most bigynous. Addition...
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BACKGROUND Androgenesis (all-male inheritance) is generally induced by means of irradiating the eggs to inactivate the maternal genome, followed by fertilization with normal sperm. In fish, the conventional technique for induced androgenesis has been applied for rapid fixation to traits, recovery of cryopreserved genotypes, sex-control, etc. A new method of androgenesis that eliminates the need...
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In a recent leading article on Griffiths in action the British Medical J7ournal suggested that the tabloid headline might have been "Administrators hijack NHS."' Hence the title for this article, which captures the essence of my experience of a course held at the King's Fund College. This was the introductory week of a two year training programme for registrars in community medicine; most of th...
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Oogenesis in Drosophila requires a significant amount of phosphorus. Oocytes mature in follicles, each of which contains 15 highly polyploid, transcriptionally active chromosomes. We show that the demand for phosphorus is met in part from the male's ejaculate following mating. Females incorporate phosphorus-32 from radiolabelled males into their ovaries, specifically into their nucleic acids. M...
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To clone... Or not to clone? That is a good question! Cloning has its advantages, but also its disadvantages. We might not realize what we are doing. It is like a sword with two blades. On one hand, it can save many lives. On the other hand, it can do a lot of harm. A question mark hangs over the future of cloning. Who are we to decide about someone’s life, his future, his happiness?
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ژورنال
عنوان ژورنال: Philosophical Transactions of the Royal Society B: Biological Sciences
سال: 2016
ISSN: 0962-8436,1471-2970
DOI: 10.1098/rstb.2015.0534