Abstract
Amino acid sequences of the first half of MSEL- and VLDV-neurophysins from goose and chicken have been determined. Identical substitutions in positions 17, 18, 35, 36 and 41 of both neurophysins of a given species when compared with their mammalian counterparts suggest a gene conversion between vasotocin—MSEL-neurophysin and mesotocin—VLDV-neurophysin genes. This event, which has already been observed for three mammalian species, seems recurrent and would link the evolution of the two neurohypophysial hormone precursors.
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Lévy, B., Michel, G., Chauvet, J. et al. Gene conversion in avian mesotocin and vasotocin genes: A recurrent mechanism linking two neurohypophysial precursor lineages?. Biosci Rep 7, 631–636 (1987). https://doi.org/10.1007/BF01127675
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DOI: https://doi.org/10.1007/BF01127675