Variation on the fourth
The fourth chromosome of Drosophila melanogaster was believed to be free from variation and meiotic recombination, leading to several theories about its selection and evolution. In the January 4 Science, Wen Wang and researchers at the University of Chicago challenge these theories with their discovery of regions of variation along the chromosome (Science 2002, 295:134-137).They analysed nucleotide sequence around the toy gene locus from many fly collections worldwide. The observation that there
Jan 7, 2002
The fourth chromosome of
They analysed nucleotide sequence around the
These observations will encourage a reassessment of the importance of genetic and evolutionary forces affecting...