Lo lus heterochromia is a neologism of Greek, tsim los ntawm lo lus hetero, khroma thiab lub ntsiab lus -ía uas yuav los txhais tau tias "Qhov txawv ntawm cov xim ntawm iris, complexion lossis plaub hau". Nws kuj tseem suav tias yog "kev tsis zoo ntawm caj ces" thiab feem ntau tshwm sim hauv dev, miv, nees, thiab tib neeg.
Koj puas xav paub dog yug muaj ob lub qhov muag xim? Tshawb nrhiav hauv qab no ntawm peb lub xaib qee cov dev ntawm cov dev nrog qhov muag sib txawv. Tej zaum koj yuav xav tsis thoob…
Dab tuaj yeem muaj qhov muag xim txawv?
Heterochromia yog ib yam mob uas qhia tau los ntawm txhua hom thiab txhais los ntawm genetic inheritance. Nyob ntawm qhov xim thiab qhov ntau ntawm melanocytes hauv iris (cov tshuaj tiv thaiv ntawm melanin) peb yuav muaj peev xwm txaus siab rau ib xim lossis lwm qhov.
Muaj ob hom ntawm heterochromia thiab ob tug ua uas ua rau:
- Iridium los yog ua tiav heterochromia: pom ib lub qhov muag ntawm txhua xim.
- Iris los yog ib nrab heterochromia: txawv ntxoov yog pom nyob rau hauv ib tug iris.
- Congenital heterochromia: heterochromia yog los ntawm noob caj noob ces.
- Acquired heterochromia: Nws tuaj yeem tshwm sim los ntawm kev raug mob lossis los ntawm qee yam kab mob, xws li glaucoma lossis uveitis.
Raws li kev xav paub peb tuaj yeem ntxiv tias heterochromia tiav tsis yog nyob rau hauv tib neeg, tab sis nws yog nyob rau hauv dev thiab miv, piv txwv li. Tsis tas li ntawd, nws tseem ceeb heev uas yuav tsum tau taw qhia tias tus mob no tsis hloov lub zeem muag ntawm tus tsiaj.
Dog yug nrog ua tiav heterochromia
Qhov muag muaj xim sib txawv. Peb tuaj yeem soj ntsuam lawv hauv ntau hom dev, qee qhov piv txwv yog:
- Siberian Husky
- Australian Shepherd
- Catahoula cur
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias nyob rau hauv cov ntaub ntawv ntawm husky, AKC (American Kennel Club) tus qauv thiab FCI (Fédération Cynologique Internationale) tus qauv lees txais ib qho xim av thiab ib lub qhov muag xiav, nrog rau ib nrab. heterochromia nyob rau hauv ib qho ntawm irises, ib yam li catahoula tsov txaij dev.
Australian Shepherd, ntawm qhov tod tes, qhia lawv tag nrho xim av, xiav lossis amber, tab sis kuj muaj kev hloov pauv lossis ua ke ntawm lawv.
Dab nrog ib lub qhov muag xiav thiab ib lub qhov muag xim av
Merle gene yog lub luag hauj lwm rau cov xim xiav ntawm iris thiab "npauj npaim" pigmentation ntawm lub qhov ntswg hauv dev. Cov noob no kuj ua rau ib nrab heterochromia, piv txwv li, qhia lub qhov muag xim av, lub qhov muag xiav thiab, nyob rau hauv lub qhov muag xiav, xim av pigmentation..
Australian Shepherd los yog Ciam Teb Collie tej zaum yuav muaj cov noob Merle, tab sis Pembroke Welsh Corgi yog ib qho piv txwv. Albinism thiab pob dawb nyob ib ncig ntawm lub qhov muag kuj tshwm sim los ntawm cov noob no. Txhua tus dev yog tshwj xeeb thiab txawm nws tus yam ntxwv, suav nrog heterochromia, ua rau nws cov yam ntxwv
Dog yug nrog ib nrab heterochromia
Nyob hauv heterochromia iridis los yog ib nrab, tus dev qhia lub qhov muag ntau xim, uas yog, peb tuaj yeem pom ntau qhov ntxoov ntxoo tib yam. iris. Nws tshwm sim hauv cov dev nrog Merle gene , ib txhia yog:
- Catahoula cur
- Zoo kawg Dane
- Pembroke Welsh Corgi
- Border Collie
- Australian Cattle Dog
Qhov no yog qhov tshwm sim thaum eumelanin diluted los yog hloov los ntawm recessive D- lossis B-series noob thiab tuaj yeem ua rau daj-ntsuab lossis daj-grey ntxoov.
The Merle gene dilutes random pigments nyob rau hauv ob lub qhov muag thiab qhov ntswg, thiab xiav ob lub qhov muag yuav tshwm sim los ntawm poob ntawm pigment nyob rau hauv lub txheej. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov los ntawm daim ntawv teev npe no yog tias Siberian Husky yog ib hom tsiaj uas tsis tuaj yeem pom ib nrab heterochromia.
Legends about heterochromia
Muaj cov lus dab neeg sib txawv txog cov dev uas muaj xim sib txawv. Raws li Native American kev lig kev cai, dev nrog ib lub qhov muag ntawm txhua xim tiv thaiv lub ntuj thiab lub ntiaj teb tib lub sijhawm.
Otra qhia tias thaum cov dev uas muaj heterochromia tiv thaiv tib neeg, cov xim av lossis lub qhov muag amber yog cov tiv thaiv ntsuj plig. Legends Eskimos piav qhia tias sled aub nrog cov xim no sai dua cov uas muaj ob lub qhov muag ntawm tib xim.
Qhov tseeb yog cov dev uas muaj ob lub qhov muag sib txawv tsuas muaj qee yam genetic txawv Qee hom tsiaj uas peb tsis tau hais qhia tauspontaneous heterochromia, xws li Dalmatian, Pit Bull Terrier, Lus Askiv Cocker Spaniel, Fabkis Bulldog lossis Boston Terrier. Ib yam li ntawd, kuj muaj miv nrog heterochromia.
