[
Beaumont M., Barratt E.M., Gottelli D., Kitchener A.C., Daniels M.J., Pritchard J.K., Bruford M.W. (2001). Genetic diversity and introgression in the Scottish wildcat. Mol. Ecol., 10: 319–336.
]Search in Google Scholar
[
Belyajev D. K., Volobujev V. T., Radzhabli S. J., Trut L. N. (1974). Polymorphism and mosaicism for additional chromosomes in silver foxes. Genetika, 10: 58–67.
]Search in Google Scholar
[
Benirschke K. (1967). Sterility and fertility of interspecific mammalian hybrids. In: Comparative Aspects of Reproductive Failure, Benirschke K. (ed.). Springer, Berlin, Heidelberg, pp. 218–234.10.1007/978-3-642-48949-5_12
]Search in Google Scholar
[
Benirschke K., Brownhill L. E., Beath M. M. (1962). Somatic chromosomes of the horse, the donkey and their hybrids, the mule and the hinny. J. Reprod. Fertil., 4: 319–326.
]Search in Google Scholar
[
Benirschke K., Low R.J., Brownhill L.E., Caday L.B., de Venecia-Fernandez J. (1964). Chromosome studies of a donkey-grevy zebra hybrid. Chromosoma, 15: 1–13.
]Search in Google Scholar
[
Brackett B. G., Cofone M. A., Boice M. L., Bousquet D. (1982). Use of zona-free hamster ova to assess sperm fertilizing ability of bull and stallion. Gamete Res., 5: 217–227.
]Search in Google Scholar
[
Bugno-Poniewierska M., Pawlina K., Jakubczak A., Jeżewska-Witkowska G. (2014). Analysis of genomic instability in primary spermatocytes of interspecific hybrids of the red fox (Vulpes vulpes) and the Arctic fox (Alopex lagopus). Folia Biol., 62: 307–312.
]Search in Google Scholar
[
Bugno-Poniewierska M., Pawlina K., Orszulak-Wolny N., Woźniak B., Wnuk M., Jakubczak A., Jeżewska-Witkowska G. (2015). Cytogenetic characterization of the genome of interspecies hybrids (Alopex-Vulpes). Ann. Anim. Sci., 15: 81–91.
]Search in Google Scholar
[
Bugno-Poniewierska M., Witarski W., Kuchta-Gładysz M., Jakubczak A., Jeżewska-Witkowska G. Severe asynapsis in spermatocytes of interspecific hybrids of the silver fox (Vulpes vulpes) and the blue fox (Alopex lagopus) leads to pachytene I arrest as a result of sustained H2AXγ phosphorylation. Unpublished data.
]Search in Google Scholar
[
Butler D. (1994). Bid to protect wolves from genetic pollution. Nature, 370: 497.
]Search in Google Scholar
[
Cattanach B. M., Moseley H. (1973). Nondisjunction and reduced fertility caused by the tobacco mouse metacentric chromosomes. Cytogenet. Cell Genet., 12: 264–287.
]Search in Google Scholar
[
Chen Z. J., Yu H. H. (2013). Genetic and epigenetic mechanisms for polyploidy and hybridity. In: Polyploid and Hybrid Genomics, Chen Z.J., Birchler J.A. (eds). Wiley, Oxford, pp. 335–354.
]Search in Google Scholar
[
Cole L. J., Shackelford R. M. (1947). Fox hybrids. Transactions of the Wisconsin Academy of Science, Arts and Letters, 38: 315–322.
]Search in Google Scholar
[
Darwin C. R. (1876). The effects of cross and self fertilisation in the vegetable kingdom. London: John Murray.10.5962/bhl.title.110800
]Search in Google Scholar
[
Davidson M. N. (1983). Sika deer. In: The Handbook of New Zealand Mammals, King C. (ed.). Auckland: Oxford University Press, pp. 468–477.
]Search in Google Scholar
[
Davis B.W., Seabury C.M., Brashear W.A., Li G., Roelke-Parker M., Murphy W.J. (2015). Mechanisms underlying mammalian hybrid sterility in two feline interspecies models. Mol. Biol. Evol., 32: 2534–2546.
]Search in Google Scholar
[
De Lavigne G. (2015). Free Ranging Dogs – Stray, Feral or Wild? Raleigh, North Carolina, 447 pp.
]Search in Google Scholar
[
Dobzhansky T. H. (1934). Studies on hybrid sterility. I. Spermatogenesis in pure and hybrid Drosophila pseudoobscura. Z. Zellf. Mikr. Anat., 21: 169–223.
]Search in Google Scholar
[
Dobzhansky T. H. (1951). Experiments on sexual isolation in Drosophila. X. Reproductive isolation between Drosophila pseudoobscura and Drosophila persimilis under natural and under laboratory conditions. Proc. Natl. Acad. Sci., 37: 792–796.
]Search in Google Scholar
[
Dureje L., Macholan M., Baird S. J., Pialek J. (2012). The mouse hybrid zone in Central Europe: from morphology to molecules. Folia Zool. 61 (3–4): 308–318.
]Search in Google Scholar
[
Federley H. (1911). Vererbungsstudien an der Lepidopterengattung Pygaeru. Archiv Rassen- und Gesellschafts. Biol. Bd., 8: 281–338.
]Search in Google Scholar
[
Fennessy P. F., Tate M. L., Johnstone P. D. (1992). Hybridisation between red deer and other species. Proc. Austral. Assoc. Anim. Breed Genet., 9: 469–472.
]Search in Google Scholar
[
Forejt J., Iványi P. (1974). Genetic studies on male sterility of hybrids between laboratory and wild mice (Mus musculus L.). Genet. Res., 24: 189.
]Search in Google Scholar
[
Goodwin D. (2007). Equine learning behaviour: what we know, what we don’t and future research priorities. Behav. Proc., 76: 17–19.
]Search in Google Scholar
[
Graphodatsky A. S., Radzhabli S. I. (1981). Comparative cytogenetics of three Canid species (Carnivora, Canidae): I. Structural rearrangements of chromosomes in the evolution of the karyo-type. Genetika, 17: 985–989.
]Search in Google Scholar
[
Graphodatsky A.S., Yang F., O’Brien P.C.M., Serdukova N., Milene B.S., Trif o n o v V. (2000). A comparative chromosome map of Arctic fox, red fox and dog defined by chromosome painting and high resolution G-banding. Chromosome Res., 8: 253–263.
]Search in Google Scholar
[
Gropp A., Tettenborn U., von Lehmann E. (1970). Chromosome variations on the Robertson type in the tobacco mouse, M. Poschiavinus, and its hybrids with the laboratory mouse. Cytogenetics, 9: 9–23.
]Search in Google Scholar
[
Gustavsson I., Sundt C. O. (1965). Chromosome complex in the family Canidae. Hereditas, 54: 248–254.
]Search in Google Scholar
[
Gustavsson I., Świtoński M., Larsson K., Plöen L. (1988). Synaptonemal complex analysis of spermatocytes in hybrids of silver fox and blue fox. J. Hered., 79: 338–343.
]Search in Google Scholar
[
Haldane B.S. (1922). Sex ratio and unisexual sterility in animal hybrids. J. Genet., 12: 101.
]Search in Google Scholar
[
Harrington R. (1982). The hybridization of red deer (Cervus elaphus L. 1758) and Japanese sika deer (Cervus nippon nippon Temminck 1838). Transactions of the International Congress of Game Biology, 14: 559–571.
]Search in Google Scholar
[
Howard J., Wildt D.E. (1990). Ejaculate-hormonal traits in the leopard cat (Felis bengalensis) and sperm function as measured by in vitro penetration of zona-free hamster ova and zona-intact domestic cat oocytes. Mol. Reprod. Dev., 26: 163–174.
]Search in Google Scholar
[
Hubbs C. (1955). Hybridization between fish species in nature. Syst. Zool., 4: 1–20.
]Search in Google Scholar
[
Iványi P., Micková M. (1971). Further studies on genetic factors in the ninth linkage group influencing reproductive performance in male mice. In: Immunogenetics of the H-2 System, Lengerova A., Vojtiskova M. (eds). Symposium, Liblice near Prague, September 1970: Proceedings. Basel, Karger, 1971, pp. 104–119.
]Search in Google Scholar
[
Iványi P., Demant P., Vojtiskova M., Iványi D. (1969). Histocompatibility antigens in wild mice (Mus musculus). Transplant Proc., 1: 365–367.
]Search in Google Scholar
[
Jakubczak A., Bugno-Poniewierska M., Jeżewska-Witkowska G., Horecka B., Buś-Kicman M. (2011). Genetic differentiation of intergeneric hybrids of Blue Frost foxes and their original forms based on microsatellite polymorphism. Ann. Anim. Sci., 11: 219–227.
]Search in Google Scholar
[
Johnson G. (1991). The Bengal cat. Greenwell Springs (LA): Gogees Cattery.
]Search in Google Scholar
[
King J. M., Short R. V., Mutto D. E., Hamerton J.L. (1965). The reproductive physiology of male zebra-horse and zebra-donkey hybrids. J. Reprod. Fertil., 9: 391.
]Search in Google Scholar
[
Kochhar H.P.S., Appa Rao K.B.C., Luciano A.M., Totey S.M., Gandolfi F., Basrur P.K., King W.A. (2002). In vitro production of cattle-water buffalo (Bos taurus – Bubalus bubalis) hybrid embryos. Zygote, 10: 155–162.
]Search in Google Scholar
[
Kozdrowski R., Dubiel A. (2004). The effect of season on the properties of wild boar (Sus scrofa L.) semen. Anim. Reprod. Sci., 80: 281–289.
]Search in Google Scholar
[
Lowe V. P. W., Gardiner A.S. (1975). Hybridization between red deer (Cervus elaphus) and sika deer (Cervus nippon) with particular reference to stocks in N.W. England. J. Zool. London., 177: 553–566.
]Search in Google Scholar
[
Łozicki A., Olech W., Dymnicka M., Florowski T., Adamczak L., Arkuszewska E., Niemiec T. (2017). Nutritive value and meat quality of domestic cattle (Bos taurus), zubron (Bos taurus × Bison bonasus) and European bison (Bison bonasus) meat. Agr. Food. Sci., 26: 118–128.
]Search in Google Scholar
[
Makinen A., Gustavsson I. (1982). A comparative chromosome-banding study in the silver fox, the blue fox, and their hybrids. Hereditas, 97: 289–297.
]Search in Google Scholar
[
Makino S. (1955). Notes on the cytological feature of male sterility in the mule. Experientia, 11: 224.
]Search in Google Scholar
[
Makobo A. D., Buck N. G., Light D. E., Lethola L.L. (1981). A note on the growth of Beefalo crossbred calves in Botswana. Anim. Sci., 33: 215–217.
]Search in Google Scholar
[
Mallet J. (2007). Hybrid speciation. Nature, 446: 279–283.
]Search in Google Scholar
[
Marsh S. K., Bolton V. N., Braude P.R. (1987). The effect of morphology on the ability of human spermatozoa to penetrate zona-free hamster oocytes. Hum. Reprod., 2: 499–503.
]Search in Google Scholar
[
Mason I.L. (1975). Hybridization between bison and cattle. Food and Agriculture Organization, Rome.
]Search in Google Scholar
[
Mc Govern P.T. (1975). The barriers to interspecific hybridization in domestic and laboratory mammals. I. Gametic isolation and hybrid inviability. Br. Vet. J., 131: 691–706.
]Search in Google Scholar
[
Mc Govern P.T. (1976). The barriers to interspecific hybridization in domestic and laboratory mammals. II. Hybrid sterility. Br. Vet. J., 132: 68–75.
]Search in Google Scholar
[
Michaelis P. (1933). Entwicklungsgeschichtlich-genetische Untersuchungen an Epilobium. II. Die Bedeutung des Plasmas fur die Pollenfertilitat des Epilobium luteum-hirsutum Bastardes. Zschr. Ind. Abst. Vererb., 65: 1–71.
]Search in Google Scholar
[
Mine O. M., Kedikilwe K., Ndebele R. T., Nsoso S.J. (2000). Sheep-goat hybrid born under natural conditions. Small Rumin. Res., 37: 141–145.
]Search in Google Scholar
[
Nugent G., Parkes J. P., Tustin K.G. (1987). Changes in the density and distribution of red deer and wapiti in northern Fiordland. New Zeal. J. Ecol., 10: 11–21.
]Search in Google Scholar
[
Nyberg K. (1980). Forseke med artkrysning mellom blarev (Alopex lagopus) og rodrev (Vulpes vulpes) ved hjelp av kunsu’g saedeoverfering (Crossing blue fox to red fox using artificial insemination). Nord. Vet. Med., 32: 132.
]Search in Google Scholar
[
Powerscourt V. (1884). On the Acclimatization of the Japanese Deer at Powerscourt. Proceedings of the Zoological Society of London, 52: 207–209.
]Search in Google Scholar
[
Proops L., Burden F., Osthaus B. (2009). Mule cognition: a case of hybrid vigour? Anim. Cogn., 12: 75–84.
]Search in Google Scholar
[
Rafferty J.P. (2019). Liger (Internet). Encyclopædia Britannica, https://www.britannica.com/animal/ liger (access: 10.02.2020).
]Search in Google Scholar
[
Ragni B. (1993). The crucial problem of in vivo identification of wildcat and recognition of hybrids with domestic cats. Institute of Zoology, Peruglia University, Italy.
]Search in Google Scholar
[
Randi E., Lucchini V., Christensen M. F., Mucci N., Funk S. M., Dolf G., Loe-schcke V. (2000). Mitochondrial DNA variability in Italian and East European wolves: detecting the consequences of small population size and hybridization. Cons. Biol., 14: 464–473.
]Search in Google Scholar
[
Ratcliffe P. R. (1987). Distribution and current status of Sika deer (Cervus nippon) in Great Britain. Mammal Rev., 17: 39–58.
]Search in Google Scholar
[
Raudsepp T., Chowdhary B. P. (1999). Construction of chromosome-specific paints for meta-and submetacentric autosomes and the sex chromosomes in the horse and their use to detect homologous chromosomal segments in the donkey. Chromosome Res., 7: 103–114.
]Search in Google Scholar
[
Rhymer J. M., Simberloff D. (1996). Extinction by hybridization and introgression. Annu. Rev. Ecol. Syst., 27: 83–109.
]Search in Google Scholar
[
Roberts E. (1929). A zebra-horse cross. J. Hered., 20: 545–548.
]Search in Google Scholar
[
Robinson T. J., Cernohorska H., Schulze E., Duran-Puig A. (2015). Molecular cytogenetics of tragelaphine and alcelaphine interspecies hybrids: hybridization, introgression and speciation in some African antelope. Biol. Lett., 11: 20150707.
]Search in Google Scholar
[
Roy M. S., Geffen E., Smith D., Wayne R. K. (1996). Molecular genetics of pre-1940 red wolves. Conserv. Biol., 10: 1413–1424.
]Search in Google Scholar
[
Short R. V. (1997). An introduction to mammalian interspecific hybrids. J. Hered., 88: 355–357.
]Search in Google Scholar
[
Smetanová M., Černá Bolfíková B., Randi E., Caniglia R., Fabbri E., Galaver-ni M., Kutal M., Hulva P. (2015). From wolves to dogs, and back: genetic composition of the Czechoslovakian Wolfdog. PLoS ONE, 10: e0143807.
]Search in Google Scholar
[
Stewart-Scott I. A., Pearce P. D., Dewes H. F., Thompson J. W. L. (1990). A case of a sheep-goat hybrid in New Zealand, N Z Vet. J., 38: 7–9.
]Search in Google Scholar
[
Sumiński E. (1987). Żubronie (in Polish). Prz. Hod., 5: 18–21.
]Search in Google Scholar
[
Świtoński M. (1981). Robertsonian translocation in the blue fox (Alopex lagopus) and its effect on the fertility. Genet. Polonica, 22: 463–474.
]Search in Google Scholar
[
Świtoński M. (1988). B chromosomes in the fox (Vulpes vulpes), their nature, distribution, inheritance and effects. Ann. Agr. Univ. Pozn., p. 174.
]Search in Google Scholar
[
Tettenborn U., Gropp A. (1970). Meiotic nondisjunction in mice and mouse hybrids. Cytogenet. Genome Res., 9: 272–283.
]Search in Google Scholar
[
Travis L. (1990). The mule. J. A. Allen & Co, London, 150 pp.
]Search in Google Scholar
[
Trujillo J. M., Stenius C., Christian L. C., Ohno S. (1962). Chromosomes of the horse, the donkey, and the mule. Chromosoma, 13: 243–248.
]Search in Google Scholar
[
Vilà C., Savolainen P., Maldonado J. E., Amorim I. R., Rice J. E., Honeycutt R. L., Crandall K. A., Lundeberg J., Wayne R. K. (1997). Multiple and ancient origins of the domestic dog. Science, 276: 1687–1689.
]Search in Google Scholar
[
Vilà C., Walker C., Sundqvist A., Flagstad Ø., Andersone Z., Casulli A., Kojo-la I., Valdmann H., Halverson J., Ellegren H. (2003). Combined use of maternal, paternal and bi-parental genetic markers for the identification of wolf–dog hybrids. Heredity, 90: 17–24.
]Search in Google Scholar
[
Wayne R. K., Brown D. M. (2001). Hybridization and conservation of carnivores. In: Carnivore Conservation, Gittleman J.L., Funk S.M., Macdonald D., Wayne R.K. (eds). Cambridge University Press: Cambridge, UK., pp. 145–162.
]Search in Google Scholar
[
Wayne R. K., Lehman N., Allard N. W., Honeycutt R. L. (1992). Mitochondrial DNA variability of the gray wolf: genetic consequences of population decline and habitat fragmentation. Conserv. Biol., 6: 559–569.
]Search in Google Scholar
[
Wheeler J. C. (2011). Savannah cats. Edina (MN): ABDO Publishing Company, pp. 8–18.
]Search in Google Scholar
[
Wildt D. E., Bush M., Howard J. G., O’Brien S. J., Meltzer D., van Dyk A., Ebe-des H., Brand D. J. (1983). Unique seminal quality in the South African cheetah and a comparative evaluation in the domestic cat. Biol. Reprod., 29: 1019–1025.
]Search in Google Scholar
[
Wildt D. E., Phillips L. G., Simmons L. G., Chakraborty P. K., Brown J. L., Howard J. G., Teare A., Bush M. (1988). A comparative analysis of ejaculate and hormonal characteristics of the captive male cheetah, tiger, leopard and puma. Biol. Reprod., 38: 245–255.
]Search in Google Scholar
[
Wipf L., Shackelford R. M. (1949). Chromosomes of a fox hybrid (Alopex-Vulpes). Proc. Natl. Acad. Sci. USA., 35: 468–472.
]Search in Google Scholar
[
Yanagimachi R., Yanagimachi H., Rogers B. J. (1976). The use of zona-free animal ova as a test-system for the assessment of the fertilizing capacity of human spermatozoa. Biol. Reprod., 15: 471–476.
]Search in Google Scholar
