Male biased sex ratio in the Mediterranean fruit fly Ceratitis capitata, an example of Y-chromosome meiotic drive

Article Abstract:

The pattern of inheritance of male producer (MP) is described to find out whether its effect on sex ratio is associated with postzygotic mortality. A theory is proposed that links it to variation in X-chromosome sensitivity to MP, arising by random suppression of the genetic basis of sensitivity during the six mitotic divisions in the origin of the cyst from its stem cell before meiosis.

United States, Physiological aspects, Fruit-flies, Fruit flies

---

The infancy of duplicate genes

Article Abstract:

Gene duplication provides new genetic materials that can be modified by mutation, random drift and natural selection to form mew genes with altered functions. To reduce the influence of gene conversion between duplicate copies, it is suggested that the duplicates must be physically separated in chromosomes by at least twenty genes.

Genetic research

---

When the going gets tough, beneficial mutations get going

Article Abstract:

Silander and others applied techniques to study the fitness effects of mutations in Drosophila. They propagated virus populations in the laboratory under conditions that allow mutations to accumulate.

United Kingdom, Drosophila, Animal mutation

Similar abstracts:

• Abstracts: Meiotic recombination in C. elegans initiates by a conserved mechanism and is dispensable for homologous chromosome synapsis
• Abstracts: Integral membrane proteins of the nuclear envelope interact with lamins and chromosomes, and binding is modulated by mitotic phosphorylation
• Abstracts: Exploring the multiple facets of the meiotic recombinase Dmc1. Recombination in HIV and the evolution of drug resistance: for better or for worse?
• Abstracts: Drawing lines and borders: How the dehiscent fruit of Arabidopsis is patterned. Imprinting and looping: Epigenetic marks control interactions between regulatory elements
• Abstracts: SUMO and ubiquitin in the nucleus: different functions, similar mechanism?. Segmentation in vertebrates: clock and gradient finally joined

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.