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Latest Population genetics Stories

Low Genetic Diversity Spells Bad News For Koalas
2012-10-24 14:41:12

Brett Smith for redOrbit.com - Your Universe Online When populations of animals are under threat, a major concern surrounding their potential for survival is the genetic diversity within the population. A high level of genetic diversity makes for a resilient population, while low genetic diversity could be a red flag for conservationists. In a new study, an international team of researchers has investigated the genetic diversity of the koala population and found through both historical...

Clearer Picture On African Human Expansion Revealed
2012-10-23 14:22:42

Brett Smith for redOrbit.com - Your Universe Online One of the biggest sticking points in the scientific debate over the story of human evolution and eventual diaspora from Africa has been how it is told from two opposite sides of the scientific spectrum–the clinically-based genetics community and the field-based anthropological community. The debate has caused some sniping over the years due to conflicting theories. But now, a group of geneticists from Stanford University set out...

Genetic Variations Elucidate Origins of Man
2012-09-21 10:48:44

April Flowers for redOrbit.com - Your Universe Online Thousands of years ago, a genetic mutation occurred which might be the answer to how early humans were able to move from central Africa and across the continent. This movement has been called "the great expansion." Three teams of researchers, from Wake Forest Baptist Medical Center, Johns Hopkins University School of Medicine and University of Washington School of Medicine, have analyzed genetic sequence variation patterns in...

Largest Genomic Study Finds Khoe-San Peoples Are Unique
2012-09-20 14:55:11

Some 220 individuals from different regions in southern Africa participated in the research that led to the analysis of around 2.3 million DNA variants per individual — the biggest ever Genetically, culturally and ethically the Khoe-San have something special to add to this world. The importance of this study is to put the Khoe and San heritage in the right place in history and this research will provide a genetic backdrop for future studies - Mattias Jakobsson. The largest...

Some Rice Species Rendered Sterile Due To Genes
2012-09-13 13:32:44

System of 3 genes prevents hybrid rice from reproducing, new study shows Researchers have identified a set of three genes that are responsible for hybrid sterility in rice, or the inability of many hybrid rice species to pass their genes on to the next generation. These findings inform a model that suggests how such hybrid sterility is maintained across rice species, and they may lead to the genetic improvement of rice as a food stock. The research is published in the 14 September issue...

Female Pit Vipers Give Birth Without Mating
2012-09-12 12:04:30

Brett Smith for redOrbit.com - Your Universe Online In what could be the ultimate act of feminism, wild female North American pit vipers have been shown to give birth without mating, according to a new report published in the Royal Society's Biology Letters. A phenomenon, known as facultative parthenogenesis (FP), has been observed in captivity before and the report asserts that it can occur regardless of the presence of male individuals. “In these populations, males are...

2012-09-10 11:07:14

BE is a condition that predisposes people to develop one of the world's commonest cancers Genetic variations that are linked with the onset of Barrett's oesophagus (BE), a pre-cancerous condition of the lower end of the gullet, have been identified for the first time. The discovery of variations in regions on two chromosomes makes it possible to develop screening tests for people at high risk of developing the disease. Although it's been thought for some time that there may be genetic...

2012-08-13 11:12:47

Max Planck scientist investigates the evolutionary model of Muller's ratchet From protozoans to mammals, evolution has created more and more complex structures and better-adapted organisms. This is all the more astonishing as most genetic mutations are deleterious. Especially in small asexual populations that do not recombine their genes, unfavorable mutations can accumulate. This process is known as Muller's ratchet in evolutionary biology. The ratchet, proposed by the American geneticist...

2012-07-18 23:00:05

In just three steps, you can get fit in a blink by following the new ZONING program and your flashing light heart rate monitor - easy Blue, moderate Yellow, and high-hot-hard Red are the three zones to get fit and fitter. Sacramento, CA (PRWEB) July 18, 2012 ZONING, Fitness in a Blink introduces the new, high energy, hot and fun fitness program that gets individuals fit and does it fast and easy. ZONING® (http://zoningfitness.com) is also the 24th book title released by prolific author,...


Latest Population genetics Reference Libraries

House Mouse, Mus musculus
2012-05-01 11:42:07

Even in the wild, this rodent is associated with humans by destroying crops and stored food. The house mouse is also known as the fancy mouse, a common pet. It is also a widely used laboratory animal, important for testing in genetics, biology, and medicine. There are three recognized subspecies of the house mouse. These mice thrive in a number of locations including fields, houses, and commercial structures. An adult male house mouse can have a body length of up to 3.9 in, and tail length...

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Word of the Day
bibliopole
  • A bookseller; now, especially, a dealer in rare and curious books.
This word comes from a Greek phrase meaning 'book seller.'
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