Qhov Tseem Ceeb Qhov txawv - Allogamy vs Xenogamy
Qhov sib txawv tseem ceeb ntawm Allogamy thiab Xenogamy yog Allogamy yog hais txog kev yug me nyuam ntawm lub zes qe menyuam nrog cov phev ntawm lwm tus neeg ntawm tib hom thaum xenogamy hais txog kev sib koom ua ke ntawm ob tus neeg tsis sib xws lossis caj ces sib txawv ntawm tib hom. Xenogamy yog ib hom allogamy.
Pollination yog xa mus rau cov txheej txheem ntawm kev hloov paj ntoos los ntawm txiv neej lub cev xeeb tub mus rau poj niam cev xeeb tub rau kev xeeb tub (syngamy). Hauv lwm lo lus, pollination txhais tau tias hloov paj ntoos los ntawm anthers mus rau stigma ntawm paj. pollination yog ob txoj kev; self pollination thiab cross pollination. Self pollination tsis tshua nyiam thiab nws yog cov txheej txheem ntawm kev hloov paj paj ntawm anther mus rau stigma ntawm tib lub paj los yog stigma ntawm cov paj txawv ntawm tib tsob nroj. Hla pollination yog txheej txheem ntawm kev hloov paj ntoos los ntawm anthers ntawm ib tsob nroj mus rau stigma ntawm lwm cov nroj tsuag ntawm tib los yog ntau hom. Hla pollination muaj qhov zoo dua evolutionary vim nws tsim cov noob caj noob ces, ntau cov xeeb ntxwv. Allogamy thiab Xenogamy yog ob nqe lus hais txog kev sib hloov pollination.
Allogamy yog dab tsi?
Allogamy yog xa mus rau fertilization ntawm lub qe qe nrog ib tus neeg nrog cov phev ntawm lwm tus neeg. Nws yog ib hom kev hla kev fertilization. Raws li ib tug tshwm sim, fertilization tshwm sim nyob rau hauv tib neeg yog ib hom ntawm allogamy. Allogamy tuaj yeem tshwm sim ntawm ob txoj hauv kev; geitonogamy thiab xenogamy. Geitonogamy yog xa mus rau kev hloov ntawm pollens ntawm ib lub paj mus rau stigma ntawm lwm lub paj ntawm tib tsob nroj. Genetically nws yog ib hom ntawm tus kheej pollination. Txawm li cas los xij, txij li ob tus neeg paj tau koom nrog, nws tau piav qhia hauv qab allogamy. Xenogamy tshwm sim ntawm ob tus neeg sib txawv ntawm cov noob caj noob ces ntawm tib hom.
Daim duab 01: Allogamy
Allogamy tuaj yeem tshwm sim ntawm ob lub paj ntawm tib tsob nroj, lossis ntawm ob lub paj ntawm ob tus neeg cog lossis hom. Allogamy muaj txiaj ntsig zoo hauv kev npog qhov cuam tshuam ntawm cov alleles recessive nyob rau hauv progeny.
Xenogamy yog dab tsi?
Xenogamy yog ib hom kev sib koom ua ke ntawm gametes tshwm sim ntawm ob tus neeg tsis sib xws ntawm tib hom. Nws yog ib daim ntawv hla pollination hauv cov nroj tsuag. Txij li thaum xenogamy tshwm sim ntawm ob niam txiv sib txawv ntawm caj ces (ob genotypes), nws ua rau muaj kev hloov pauv hauv cov xeeb ntxwv. Yog li, txhim khu kev noj qab haus huv tag nrho ntawm ib hom.
Daim duab 02: Xenogamy
Xenogamy yog ib qho kev hloov pauv tseem ceeb uas tshwm sim hauv cov xwm txheej thiab hauv kev ua liaj ua teb. Hauv cov ntsiab lus evolutionary, xenogamy yog cov txheej txheem tseem ceeb ntawm kev tsim cov kab mob muaj zog ntau dua thiab khaws lawv dua li cov neeg muaj zog tsawg dua los ntawm kev xaiv ntuj. Ntau lub cev qoj ib ce yuav txuas ntxiv kom muaj sia nyob hauv ib puag ncig thiab nws tseem ceeb heev rau kev hloov pauv ntawm ib hom. Xenogamy tseem ceeb rau kev txo cov homozygosity hauv cov neeg yug me nyuam thiab. Thiab nws tseem tso cai rau rov pib dua ntawm alleles lossis qhia txog cov alleles tshiab rau hauv cov pejxeem.
Dab tsi zoo sib xws ntawm Allogamy thiab Xenogamy?
- Allogamy thiab Xenogamy tshwm sim ntawm ob tus neeg.
- Ob leeg suav nrog txoj kev hla kev pollination.
Qhov txawv ntawm Allogamy thiab Xenogamy yog dab tsi?
Allogamy vs Xenogamy |
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| Allogamy yog hais txog kev yug me nyuam ntawm lub zes qe menyuam ntawm ib tus neeg nrog cov phev ntawm lwm tus neeg ntawm tib hom. | Xenogamy hais txog kev sib koom ua ke ntawm ob tus neeg tsis sib xws ntawm tib hom. |
| Hom | |
| Allogamy suav nrog xenogamy thiab geitonogamy. | Xenogamy yog ib hom. |
| Kev koom nrog tib neeg | |
| Allogamy tuaj yeem tshwm sim ntawm ob lub paj ntawm tib tsob ntoo lossis ob lub paj ntawm cov nroj tsuag sib txawv. | Xenogamy tshwm sim ntawm ob tsob ntoo sib txawv. |
| Txo Homozygosity | |
| Ib txoj kev allogamy (geitonogamy) tsis txo qhov homozygosity. | Xenogamy ib txwm txo qis homozygosity. |
| Txoj kev sib txawv ntawm cov xeeb ntxwv | |
| Geitonogamy tsim cov noob caj ces zoo tib yam. | Xenogamy tsim cov noob caj noob ces. |
| Geitonogamy tsis ua kom lub zog ntawm hom. | Xenogamy ua kom lub zog ntawm hom. |
| Evolutionary tseem ceeb | |
| Geitonogamy tsis yog qhov tseem ceeb evolutionarily. | Xenogamy yog qhov tseem ceeb ntawm kev hloov pauv. |
Summary – Allogamy vs Xenogamy
Allogamy thiab Xenogamy yog cov lus siv sib hloov rau kev sib hloov los yog hla fertilization. Txawm li cas los xij, allogamy suav nrog geitonogamy uas hais txog ib hom kev pollination tus kheej. Allogamy yog fertilization ntawm lub zes qe menyuam nrog cov phev ntawm lwm tus neeg (lwm lub paj ntawm tib tsob nroj lossis lwm cov nroj tsuag). Xenogamy ib txwm tshwm sim ntawm ob tus neeg tsis sib xws ntawm cov tib neeg sib txawv. Qhov no yog qhov txawv ntawm allogamy thiab xenogamy.
