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Comparison of paralogous vitellogenins in 10 insect species representing six orders showed a remarkable degree of conservation of amino acid composition in spite of sequence differences. For example, the correlation between the percentages of the 20 amino acids in two vitellogenins from the beetle Tribolium castaneum was 0.975, even though the two amino acid sequences differed from each other at 49...
A rooted phylogenetic analysis of the viral family Picornaviridae identified several major clusters within this viral family. The genus Parechovirus, including Ljungan virus, was found to be basal to the family. Within the family, there were two major subgroups: (1) a cluster including viruses assigned to the genera Enterovirus and Rhinovirus; and (2) a cluster including Teschovirus, Cardiovirus,...
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