Summary
Llama, guanaco, vicuna and alpaca show similar diploid numbers, gross chromosomal morphology and homologous G, C and NOR banding patterns. This chromosomal homology is also found in the two-humped camel and very probably in the one-humped camel as well. These findings indicate that the camelid karyotype can probably be traced back to early Miocene times. This probably represents the most extreme case of chromosomal conservatism among mammals.
References
Taylor, K.M., Hungerford, D.A., Snyder, R.L., and Ulmer, F.A. Jr, Cytogenetics7 (1968) 8.
Larramendy, M.L., Vidal-Rioja, L., Bianchi, M.S., and Bianchi, N.O., Proc. IX Latin Am. Cong. Zool.159 (1983).
Bunch, T.D., Foote, W.C., and Maciulis, A., J. Hered.76 (1985) 115.
Halman, C.R.E., Res. Vet. Sci.22 (1977) 40.
Sumner, A.T., Exp. Cell Res.75 (1972) 304.
Wang, H.C., and Fedoroff, S., Nature New Biol.235 (1972) 52.
Goodpasture, C., and Bloom, S.E., Chromosoma53 (1975) 37.
Webb, S.D., in: Pleistocene Mammals of Florida, p. 170. Ed. S.D. Webb. University Press of Florida, Gainsville 1974.
Franklin, W.L., in: Mammalian Biology in South America, p. 457. Eds M.A. Mares and H.H. Genoways, University of Pittsburgh, Pittsburgh 1981.
Seuanez, H.H., The Phylogeny of Human Chromosomes. Springer-Verlag, Berlin 1979.
Yunis, J.J., and Prakash, O.M., Science215 (1982) 1525.
Romero, E.C., Llamas, alpacas, vicuñas y guanacos. Ph. D. thesis, Fac. Agr. C. Vet., Buenos Aires 1927.
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This work was supported by grants from the Organization of American States and SECYT.
Acknowledgments. We wish to thank Dr. M. Pizarro for his assistance and encouragement.
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Bianchi, N.O., Larramendy, M.L., Bianchi, M.S. et al. Karyological conservatism in South American camelids. Experientia 42, 622–624 (1986). https://doi.org/10.1007/BF01955563
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DOI: https://doi.org/10.1007/BF01955563