Summary
The wolf and the dog can be readily crossed and the resulting hybrids are fully fertile. Typical Mendelian segregation has been demonstrated for many different characters, notably for hair colour and pattern, eye colour, ear form, size and various skull characters. There is also evidence for segregation in certain physiological peculiarities such as season of rut and nervous disposition. Modificatory influences due to environment may affect some of the craniological characters, the form of the tail and the general external appearance, though in all of these cases the differences are at basis genotypical. The bark of the dog is shown to be a purely modificatory character which may be readily acquired by the wolf. Certain features such as the duration of pregnancy, the blind period in the young, the order of appearance of milk teeth and the moulting phenomena are identical in both wolves and dogs. All of these data taken together serve to emphasize the very close similarity in genetical constitution between the wolf and the dog, and suggest thepossibility of the origin of the various races ofCanis familiaris from a single wild species, viz.C. lupus.
Similar content being viewed by others
References
I. Special works on dogs, wolves and their hybrids
Anker, J. (1925). Die Vererbung der Haarfarbe beim Dachshunde. Det. KGL. Danske Vidensk. Selskab., Biol. Med.,4, 1–72.
Barrows, W. &Phillips, J. (1915). Colour in cocker spaniels.J. Hered. 6, 387–97.
Bockelmann, H. (1920). Untersuchungen. an Wolfsbastarden nach Züchtungsversuchen im Haustiergarten zu Halle a/S. Inaug. Diss. in Manuscript (see art. of Lotsy (1922),Genetica,4).
Bogoljubsky, S. N. (1928). Über analoge Merkmale der Haushunde.Rev. Zool. Russe,8, 24–32.
Brauner, A. (1923). Les chiens de l’âge de la pierre du Bassin de l’Amour (Russian).Mém. Comité Géologique U.R.S.S. 160, 1–24.
—— (1928). Haushunde des Palaearctis (Russian).Zapiski Odesskoro Obshestwa Estestvoznania,44, 321–70.
Dahl, L. E. &Quelprud, Th. (1937). Die Vererbung der Haarfarbe beim deutschen Boxer.Z. Tierz. ZüchtBiol. 37, 159–77.
Dawson, W. M. (1937). Heredity in the dog.Yearb. U.S. Dep. Agric. pp. 1314–49.
Hirschfeld, W. K. (1933). Haarfarbenvererbung bei hockbeinigen Terriern.Züchter,5, 141–4.
Ibsen, H. L. (1916). Tricolor inheritance. II. The Basset hound.Genetics,1, 367–76.
Iljin, N. A. (1926a). Principal laws of inheritance and cynology (Russian).Dog Breeding and Training, U.R.S.S. No. 1, 4–6.
Iljin, N. A. (1926b). Theguby eye in mammals—dogs (Russian, Engl. summ.).Trav. Lab. Zool. exp. Morph. Anim. 1, 121–9.
-- (1928). Ruby eye in dogs (Russian).Dog Breeding and Training, U.R.S.S. No. 1 (18), 1–3.
—— (1931a). Coat colour inheritance in Dobermann-pincher (Russian, Engl. summ.).Trud. Dinam. Razvit. 6, 241–51.
—— (1931b). Über die Vererbung der Färbung beim Dobermann-Pinscher.Züchter,3, 370–6.
-- (1932).Dog Genetics and Breeding (Russian), State Agric. Editorship, Moscow, pp. 1–164, 77 figs. Abstract seeImp. Bur. Anim. Genet. Anim. Breed. Abstr. 1, No. 1, 61–3, Edinburgh, 1933.
—— (1937). La variabilité parallèle dans la phénogenèse de la conque de l’oreille chez les Canides.C.R. Acad. Sci. U.R.S.S. 17 (7), 379–83.
Kandern, W. (1905). Der Polarwolf (Canis occidentalis var.albus Sabine).Zool. Jb. Abt. f. Syst.21.
Krieg, H. (1925). Biologische Reisestudien in Südamerika. 7. Not. über einen Bastard zwischen Hund und Pampafuchs (Pseudalopex (Canis) azarae) nebst einige Bemerkungen über die Systematik der argentinisch-chilenischen Füchse.Z. Morph. Ökol. Tiere,4, 702–10.
Lang, A. (1910). Über alternative Vererbung bei Hunden.Z. indukt. Abstamm.- u. VererbLehre,3, 1–33.
Little, C. C. (1914). Coat colour in pointer dogs.J. Hered. 5, 244–8.
—— (1934). Inheritance in Toy Griffons.J. Hered. 25, 198–200.
Little, C. C. &Jones, E. E. (1919). The inheritance of coat color in Great Danes.J. Hered. 10, 309–20.
Marchlewski, T. (1926). Craniological studies on dogs.Bull. int. Acad. Cracovic, B, pp. 601–14.
Mitchell, A. L. (1935). Dominant dilution and other color factors in collie dogs.J. Hered. 26, 425–30.
Plate, L. (1925). Über Hundekreuzungen.Verh. dtsch. zool. Ges. 30, 89–91.
—— (1929). Über Nackthunde und Kreuzungen von Ceylon-Nackthund und Dachel.Jena. Z. Naturw. 64, 227–32.
Schäme, R. (1922). Die Grundformen des Haushundschädels.Jb. Jagdk. 6, 209–64.
Sherman, St. (1930). Was your dog once a wolf?Pop. Sci. Mon. (Abstr. inShepherd Dog, 1930, No. 3).
Steiger, A. L. (1936). Über die Haar-Grundfarben beim Jagdhund und ihre genetischen Beziehungen, usw.Züchter,8, 261–71.
Stephanitz, Rittm v. (1923). Der deutsche Schäferhund in Wort und Bild. 7 Aufl. Jena, Ant. Kämpfe, Seite 1–828.
Stroman, G. M. (1925). An albino coyote.J. Hered. 16, 343.
Studer, T. (1901). Die prähistorischen Hunde in ihrer Beziehung zu den gegenwärtig lebenden Rassen.Abh. Schweiz. paläont. Ges. 28, 1–137.
Taenzer, E. (1923–5). Der Unterschied von Hund und Wolf.Jb. Jagdk. 7, 213–26.
Tracy, Anna (1930). The origin of shepherd dogs.Shepherd Dog, Nos. 2 and 3, 9–38.
Warren, D. C. (1927). Coat color inheritance in greyhounds.J. Hered. 18, 513–22.
Wolfgramm, A. (1894). Die Einwirkung der Gefangenschaft auf die Gestaltung des Wolfschädels, usw.Zool. Jb. Abt. f. Syst.7.
Wriedt, C. (1929). Aufspaltung der Schädelform des Pekingesers.Züchter,1, 203–4.
Wright, S. (1918). Color inheritance in mammals. IX. The dog.J. Hered. 9, 87–90.
II. Other works cited
Antonius, O. (1922).Grundzüge einer Stammesgeschichte der Haustiere. Jena: G. Fischer.
Blasius, J. H. (1857).Fauna der Wirbeltiere Deutschlands, usw. 1. Bd. Naturgeschichte der Säugetiere.
Brehm (1893).Tierleben.
-- (1922).Tierleben.
Castle, W. E. (1909). (In coll. Walter, Mullenix and Cobb.) Studies of inheritance in rabbits.Publ. Carneg. Instn, No. 114, 1–70.
-- (1916). An expedition to the home of the guinea-pig and some breeding experiments with material there obtained.Publ. Carneg. Instn, No. 241, 1–55.
Darwin, C. (1868).The Variation of Animals and Plants under Domestication. London: John Murray.
Detlefsen, J. A. (1914). Genetic studies on a cavy species cross.Publ. Carneg. Instn, No. 205, 7–134.
Haacke, W. (1903).The Origin of the Animal World (Russian trans.).
Haldane, J. B. S. (1927). The comparative genetics of colour in rodents and Carnivora.Biol. Rev. 2, 199–212.
Heinroth, O. (1908). Trächtigkeits- und Brutdauern.Zool. Beob. 49, 14–25.
Hilzheimer, M. (1909).Die Haustiere bis Abstammung und Entwicklung.
Iljin, N. A. (1928). The distribution and inheritance of the white spots in guinea-pigs (Russian, Engl. summ.).Trav. Lab. Zool. exp. Morph. Anim. 4, 255–349.
Keller, K. (1919).Stammesgeschichte unserer Haustiere. Aus Natur und Gesteswelt,252, 2. Aufl. Leipzig: Berlin, Teubner.
Klatt, K. (1913). Über den Einfluss der Gesamtgrösse auf das Schädelbild nebst Bemerkungen über die Vorgeschichte der Haustiere.Arch. Entw. Mech. Org. 36.
Lotsy, J. P. (1922). Die Aufarbeitung des Kühn’schen Kreuzungsmaterials im Institut für Tierzucht der Universität Halle.Genetica,4, 32–61.
MacDowell, E. C. (1914). Size inheritance in rabbits.Publ. Carneg. Instn, No. 196, 7–55.
Morgan, T. H. (1927).The Theory of the Gene.
Nachtsheim, H. (1929). Die Entwicklung der Kaninchenrassen im Lichte ihrer Genetik.Z. Tierz. ZüchtBiol. 14, 53–109.
Ogniev, S. I. (1931).The Mammals of East Europe and Northern Asia,2 (Russian). Moscow, State Editorship.
Pap, E. (1921). Über Vererbung von Farbe und Zeichnung bei dem Kaninchen.Z. indukt. Abstamm.- u. VererbLehre,26, 185–270.
Philipptschenko, J. (1917). Variabilité et hérédité du crâne chez les Mammifères II. Hérédité des caractères craniologiques chez les Lapins.Arch. russes Protist. 1, 657–731.
Roerig, A. (1903). Über Säugetier-Bastarde.Zool. Gart., Lpz.,44, 212–20, 247–54.
Satunin, K. A. (1895). Vertebrates of the Moscow region: issue. I. Mammals.Dnevnik zool. otd. Obshestva liub. est., antrop., etnogr. 2, 1–18 (Russian).
Teuwsen, F. &Schulze, K. (1901).Fährten und Spurenkunde.
Wallace, A. R. (1889).Darwinism. London: Macmillan.
Author information
Authors and Affiliations
Additional information
[The MS. of this paper reached me about two years ago since when all attempts to get into touch with the author have failed. In view of the interest of the material and of the author’s standing in the genetical world I have decided to take the responsibility of publishing it without his revision. For this reason many of the references in the text will not be found in the list at the end of the paper. I trust, however, that such references as the author had included will enable the interested student to track the rest.Ed.]
Rights and permissions
About this article
Cite this article
Iljin, N.A. Wolf-dog genetics. Journ. of Genetics 42, 359–414 (1941). https://doi.org/10.1007/BF02982879
Issue Date:
DOI: https://doi.org/10.1007/BF02982879