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Intraspecific evolution of a gene family coding for urinary proteins.

al-Shawi, R; Ghazal, P; Clark, AJ; Bishop, JO; (1989) Intraspecific evolution of a gene family coding for urinary proteins. J Mol Evol , 29 (4) 302 - 313.

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The genome of the laboratory mouse contains about 35 major urinary protein (MUP) genes, many of which are clustered on chromosome 4. We have used distance and parsimony methods to estimate phylogenetic relationships between MUP genes from nucleotide sequence and restriction maps. By analyzing coding sequences we show that the genes fall into four main groups of related sequences (groups 1-4). Comparisons of restriction maps and the nucleotide sequences of hypervariable regions that lie 50 nucleotides 5' to the cap sites show that the group 1 genes and probably also the group 2 pseudogenes fall into subgroups. The most parsimonious trees are consistent with the evolution of the array of group 1 and 2 genes by mutation accompanied by a process tending toward homogenization such as unequal crossing-over or gene conversion. The phylogenetic grouping correlates with grouping according to aspects of function. The genomes of the inbred strains BALB/c and C57BL contain different MUP gene arrays that we take to be samples from the wild population of arrays.

Title:Intraspecific evolution of a gene family coding for urinary proteins.
Keywords:Animals, Base Sequence, Gene Expression Regulation, Genes, Mice, Mice, Inbred BALB C, Mice, Inbred C57BL, Molecular Sequence Data, Multigene Family, Phylogeny, Proteins, Pseudogenes, Sequence Homology, Nucleic Acid

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