International HapMap consortium expands mapping effort
...ers of genetic variation, called single nucleotide polymorphisms (SNPs). The consortium's new goal is to build an improved version of the HapMap that is about five times denser than the original plan. This "Phase II" HapMap will take advantage of the rapid, high-throughput genotyping capacity of Perlegen Sciences...Breast-Cancer Risk Linked to Exposure to Traffic Emissions at Menarche, First Birth
...esearchers currently are examining whether genetic polymorphisms involving PAH metabolism may modify the risk, if lifeline cumulative exposure may be associated with the risk and if this study may be replicated in another geographic settings. Jo Freudenheim, Ph.D., UB professor of social and preventive medicine, ...Cricket's finicky mating behavior boosts biodiversity
... used a technique called amplified fragment-length polymorphisms to establish the evolutionary tree, or phylogeny, of the Laupala. They based their estimates of the cricket's rate of speciation on the Laupala's phylogeny and on the age of the islands in the Hawaiian archipelago. The youngest island, Hawaii, was fo...International Team Determines Geographic Origin of Leprosy
...sy, for tiny variations known as single nucleotide polymorphisms (SNPs). SNPs, pronounced "snips," are variations in a single "letter" of DNA's four-letter code. Scientists can use SNPs to trace the lineage of an organism, in this case M. leprae, and to develop a picture of how leprosy spread from its point of ori...... chimpanzee, to determine the "ancestral" state of polymorphisms in the genes and to assess the extent of human-chi...es between different individuals. Blocks of linked polymorphisms are called haplotypes, whereby each haplotype is, in essence, a distinct genetic variant of the gene...Baby's genes affect mom's cholesterol levels
...the general population. They found that when these polymorphisms were present in the babies, their mothers' triglyc...enced to the same extent that they would be if the polymorphisms were present in the mothers. However, when both the mother and fetus expressed the same polymorphism...California computer scientists double volume of data in NIH biotech repository
...s all publicly available data on single nucleotide polymorphisms (SNPs), which are sites in the DNA sequence where individuals differ at the level of nucleotides. These SNPs (pronounced snips) are locations in the human DNA sequence where two possible bases occur in the population. SNPs account for the most co...U-M scientists say fused genes trigger the development of prostate cancer
...s all publicly available data on single nucleotide polymorphisms (SNPs), which are sites in the DNA sequence where individuals differ at the level of nucleotides. These SNPs (pronounced snips) are locations in the human DNA sequence where two possible bases occur in the population. SNPs account for the most co...Studies on human genome variation provide insight into disease
...esearch how these "genetically indistinguishable" polymorphisms can complicate the identification of disease-related genes. "Although they should pose few difficulties when they are located close together on the same chromosome, they often occur on different chromosomes, where it is quite another story," explain...Housecat-sized Siberian tiger cubs get collared
...esearch how these "genetically indistinguishable" polymorphisms can complicate the identification of disease-related genes. "Although they should pose few difficulties when they are located close together on the same chromosome, they often occur on different chromosomes, where it is quite another story," explain...ASU researchers 'wire' DNA to identify mutations
... identifying these mutations, or single nucleotide polymorphisms (SNPs), by means of measuring the electrical conductance of a single DNA molecule. SNPs are buried in the 3 billion DNA bases of the human genome. On average, SNPs occur about once in every 1,000 DNA bases, though not every SNP found will necessa...Feinstein researchers identify intelligence gene
...quence variations, also known as single nucleotide polymorphisms (SNPs), in the dysbindin gene and found that one specific pattern of SNPs, known as a haplotype, was associated with general cognitive ability: Cognition was significantly impaired in carriers of the risk variant in both the schizophrenia group and t...Utah researchers confirm chromosome may harbor autism gene
...gene sequence variations, called single nucleotide polymorphisms (SNPs), attached to 3/8 by 3/8-inch area. The DNA strands of the family members were broken up and then bonded to the DNA on the chip, allowing researchers to compare the variations in the SNPs of the different DNA on an extremely fine scale. The c...NHGRI announces new sequencing targets
...of tiny changes in DNA ?known as single nucleotide polymorphisms (SNPs) ?that can be involved in human disease. The structural variation effort will seek to identify instances where larger segments of DNA have been deleted, duplicated or rearranged ?all of which can cause disease by disrupting the structure and fu...Two NIH initiatives launch intensive efforts to find roots of common diseases
...he alternative spellings ?called single nucleotide polymorphisms or SNPs ?that normally occur in the order of the 3 billion DNA base pairs or letters that make up a person's genome. SNPs are like single-letter misspellings of a word. Most of these genetic variations are biologically meaningless. But a small fracti...CHAVI announces international search for genes affecting HIV response
...uman genome. The changes, called single nucleotide polymorphisms (SNPs), are like single-letter variations in the spellings of a word. The SNPs cluster in local neighborhoods, known as haplotypes, within the genome. Most of these variations are biologically meaningless, but a small fraction can alter the function ...Completed genome set to transform the cow
...ne of these base pairs (known as single nucleotide polymorphisms or SNPs) can affect the functioning of a gene and mean the difference between a highly productive and a poorly performing animal. Over two million of these SNPs, which are genetic signposts or markers, were identified as part of the project. Austra...A new kind of mutation could explain numerous phenotypic variations in various species
...sing bioinformatic approaches, the team identified polymorphisms (common mutations) among humans and mice that are likely to act in the same way as they do in the Texel breed. It appears, therefore, that this new kind of mutation, discovered while studying sheep, could contribute significantly to the phenotypic va...Inheriting a tendency to brain infection
...hly deleterious mutations may co-exist with common polymorphisms in many infectious diseases," he said. ...International team analyzes human genetic variation in key immune region
...anges in the genetic code called single nucleotide polymorphisms (SNPs) together with short segments of DNA sequence from a set of highly variable genes within the MHC, called "HLA genes." These genes form a distinctive fingerprint that is recognized by an individual's immune system to distinguish foreign tissues ...Researchers make progress in studying genetic traits of India-born populations
...), Patel and colleagues analyzed 1,200 genome-wide polymorphisms collected from 432 individuals representing 15 different Indian populations. This study represents the largest study of Indian genetic variation performed to date, in terms of the total number of sites in the human genome that were surveyed. ...High-throughput oncogene mutation detection in human cancers by mass spectrometry-based genotyping
...ve and accurate method to detect single nucleotide polymorphisms (SNPs) in DNA. But while this tool is mostly used to understand how single letter (or nucleotide) changes in genes might correlate with disease risk in normal individuals, the researchers adapted it to look for known point mutations in genes that mak...Tiny clue reveals new path toward heart disease
...n specific gene variants, called single nucleotide polymorphisms (SNPs), that occur when a single nucleotide building block in the long strand of DNA is altered. The researchers sought SNPs that occurred more or less often in individuals with coronary artery disease than in individuals without it, as such a link w...Susceptibility to Crohn's disease -- an important new clue
...ion study with more than 300,000 single nucleotide polymorphisms (SNPs) ?DNA sequence variations occurring when a single nucleotide in the genome differs between members of a species ?Cécile Libioulle et al. identified a new susceptibility locus for Crohn’s disease. Their results are published online in the open-a...Major gene study uncovers secrets of leukemia
...single nucleotide polymorphisms. Single nucleotide polymorphisms are individual variations in the DNA that are spac...ed across the human chromosomes. Single nucleotide polymorphisms function as flags for researchers, allowing them to detect specific deletions of DNA in a gene or in...Researchers identify gene involved in dog size
...netic variations, referred to as single nucleotide polymorphisms (SNPs), in the IGF-1 gene. Researchers then narrowed the field of SNPs associated with small size by SNP genotyping in and around the IGF-1 gene in 463 Portuguese water dogs. A similar analysis was done using 526 dogs from 14 small breeds and nine gi...Identified main genetic variants involved in response to HIV
...es. These variations, known as simple nucleotide polymorphisms (SNPs), are single variations affecting only one nucleotide or base of the genomic sequence. Despite humans sharing 99.9% of the genome sequence, there are still 3 million genetic variations –which make us different from one another– 90% of which are......by CHAVI researchers, we aim to discover even more polymorphisms that could provide additional clues how some patie... vaccines, the primary goal of CHAVI." Two of the polymorphisms found were in genes controlling the human leukocyte antigen (HLA) system, which plays a major role i...