Kwanancin jinsin karnuka sun bincika wasu masana kimiyya na Sweden waɗanda Petra Savolainen, Farfesa na Ma'aikatar Zoology ya jagoranci a Cibiyar Harkokin Kasa ta Stockholm.
Matakai na farko don nazarin
Don samun bayanan abin dogara a shekara ta 2004, an kwatanta DNA mai jujjuya (gadon daga mace) na karnuka na yau da kakanninsu na wolf. A sakamakon sakamakon da aka samu, ana nuna babban kama da wuttsai a cikin tsarin DNA a cikin 14 tsararrun kare.
Kayan daji na zamani sun bar ci gaba daga kakanninsu har shekaru dubu. Mafi tsoffin binciken archaeological na gidan kare dan gida shine kimanin shekaru 15,000. Duk da haka, wasu masu nazarin halittu sunyi imanin cewa karnuka mafi karnuka na karnuka sun rabu da kullun da yawa a baya.
Masanin kimiyya Robert Wayne ya yi imanin cewa bayyanar irin wannan cuta ta gida ya faru da yawa a baya fiye da yadda za a kafa salon rayuwar mutane (kimanin 10,000 zuwa 14,000 da suka wuce). A baya, masana kimiyya sunyi imanin cewa mutanen da ba su da tushe ba su fara dabbobi ba. Duk da haka, bisa ga Robert Wayne, karnuka na farko sun bayyana shekaru 100,000 da suka wuce ko fiye da baya.
Yawancin masana kimiyya sun yi imanin cewa, tsohuwar kare ta fito a gabashin Asia. A yayin bincike, akwai wurin da aka gano yawancin kwayoyin halittu, wanda ya kasance mafi daraja ga sauran yankuna da cibiyoyin.
Karnuka mafi d ¯ a
- Akita Inu (Japan)
- Alaskan Malamute (Alaska)
- Afghanistan Greyhound (Afghanistan)
- Basenji (Congo)
- Lhasa Har ila yau (Tibet)
- Pikenes (Sin)
- Saluki (Crestcent Crest in Gabas ta Tsakiya)
- Samun Samun Sami (Siberia, Rasha)
- Shiba Inu (Japan)
- Siberian Husky (Siberia, Rasha)
- Tibet Tiye (Tibet)
- Chow Chow (Kasar Sin)
- Sharpei (Sin)
- Shih Tzu (Tibet, Sin)
Duk da haka, amsar karshe ta tambaya, wanda karnuka ne mafi d ¯ a, ana iya samun su lokacin da aka bincika dukan nau'in zamani.