YHybridization vs Inbreeding
Raws li kev yug me nyuam thiab hybridization yog ib qho tseem ceeb hauv kev tiv thaiv hom, nws yog ib qho tseem ceeb kom paub qhov txawv ntawm hybridization thiab inbreeding. Hybridization thiab inbreeding yog ob hom kev xaiv yug me nyuam. Ob qho txheej txheem koom nrog cov nroj tsuag thiab tsiaj txhu nrog cov noob caj noob ces sib txawv. Cov kev xaiv yug me nyuam feem ntau yog ua tiav los tsim cov tsiaj tshwj xeeb thiab cov nroj tsuag uas muaj cov yam ntxwv tshwj xeeb xws li tshuaj tiv thaiv kab mob, tshuaj tiv thaiv kab mob, tiv thaiv kab mob, thiab lwm yam.
YHybridization yog dab tsi?
Nyob hauv noob caj noob ces, cov txheej txheem ntawm kev hla kev sib txawv ntawm cov niam txiv sib txawv los ntawm ob hom los tsim cov xeeb ntxwv xeeb tub yog hu ua hybridization. Cov xeeb ntxwv tshiab yog hu ua hybrid. Cov hybrids yog ib qho tseem ceeb heev nyob rau hauv cov txheej txheem ntawm thaj chaw cais thiab speciation. Hybridization tuaj yeem ua tiav lossis tshwm sim hauv cov nroj tsuag thiab tsiaj txhu. Piv txwv li, mule yog ib qho piv txwv zoo li ib tug tsiaj hybrid, uas yog tsim los ntawm kev yug me nyuam ntawm ib tug txiv neej nees luav thiab poj niam nees. Hauv qhov piv txwv no, nees thiab nees luav muaj 64 thiab 62 chromosome khub, tab sis mule tsuas muaj 63. Yog li, cov hybrids tuaj yeem muaj cov noob sib txuas tshiab uas yuav ua rau muaj kev hloov pauv zoo rau qee qhov chaw ib puag ncig, tsis zoo li lawv niam lawv txiv. Hauv cov xwm txheej zoo li no, cov hybrids tuaj yeem muaj sia nyob raws li hom tshiab yog li txhawb qhov speciation. Cov txheej txheem ntawm cov nroj tsuag hybridization tuaj yeem muab faib ua ntau pawg xws li inter-varietal, intra-varietal, inter-specific thiab intergeneric hybridization.
Kev sib deev yog dab tsi?
Inbreeding txhais tau tias yog kev tsim cov xeeb ntxwv los ntawm kev sib yuav ntawm niam txiv uas muaj caj ces zoo heev los yog cov txheeb ze ze. Inbreeding tsis feem ntau hloov tag nrho allele zaus. Txawm li cas los xij, nws tuaj yeem ua rau kom muaj homozygous genotypes, uas nyob rau hauv turn txhim kho qhov tshwm sim ntawm qhov tsis tshua muaj recessive alleles. Inbreeding feem ntau yog ua rau cov tsiaj xws li nyuj, dev, nees, thiab lwm yam. thiaj li yuav kis tau lawv cov noob rau lwm tiam neeg. Txawm li cas los xij, muaj qhov ua tau dhau los ntawm qee yam tsis xav tau ntawm niam txiv rau cov xeeb ntxwv uas yuav ua rau muaj kab mob caj ces.
Qhov txawv ntawm Hybridization thiab Inbreeding yog dab tsi?
• Hybridization yog tus txheej txheem ntawm kev hla cov noob caj noob ces los tsim cov xeeb ntxwv, qhov kev sib txuas yog hla ntawm ob tug niam txiv uas nyob ze (cov txheeb ze) uas sib koom ua ke zoo sib xws.
• Hybridization ua rau tsim cov xeeb ntxwv nrog cov alleles sib txawv ntawm lawv niam lawv txiv, whereas inbreeding ua cov xeeb ntxwv nrog cov qauv allele zoo sib xws rau lawv niam lawv txiv.
• Nyob rau hauv hybridization, muaj ob hom sib txawv, whereas, inbreeding, niam txiv yog tib hom.
• Hybridization txhim khu cov heterozygous alleles, thaum inbreeding txhim khu cov nyiaj ntawm homozygous alleles.
• Inbreeding muaj tag nrho cov tsiaj nyob, whereas hybridization koom ib feem ntawm cov tsiaj los yog tsob nroj.
• Kev hloov ntawm qee yam tsis zoo los ntawm niam txiv mus rau cov xeeb ntxwv tuaj yeem tswj tau thaum lub sij hawm hybridization, tab sis qhov no tsis tuaj yeem ua rau inbreeding.
• Inbreeding feem ntau yuav ua rau caj ces txawv txav, tsis zoo li hybridization.
