Summary
We have analyzed the sequence of 63 B1 and 71 B2 repetitive elements from published data base sequences. The sequences conform to previously published consensus sequences, but are not identical to them. The B2 sequences show seven regions of high variability between family members, which we show points to the B2 family containing subfamilies; no similar evidence is found for subfamilies of the B1 family. The comparisons show no evidence for the emergence of species-specific variants of B1 or B2 sequences since the separation of murine and hamster lines of descent, nor of their concerted evolution within species in the last 10 million years.
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Bains, W., Temple-Smith, K. Similarity and divergence among rodent repetitive DNA sequences. J Mol Evol 28, 191–199 (1989). https://doi.org/10.1007/BF02102476
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DOI: https://doi.org/10.1007/BF02102476