Qhov sib txawv tseem ceeb ntawm Geitonogamy thiab Xenogamy yog Geitonogamy yog kev hloov ntawm paj ntoos mus rau lub stigma ntawm lwm lub paj ntawm tib tsob nroj thaum Xenogamy yog hloov paj ntoos mus rau stigma ntawm lwm lub paj uas belongs rau cov nroj tsuag sib txawv.. Geitonogamy yog ib hom ntawm tus kheej pollination whereas xenogamy yog ib hom ntoo khaub lig-pollination.
Angiosperms cia siab rau pollination rau fertilization thiab zus tau tej cov noob. Pollens los ntawm anthers hloov mus rau stigma ntawm pistils thaum pollination. Pollination tuaj yeem tshwm sim ntawm cov txiv neej-poj niam qhov chaw ntawm tib lub paj lossis ntawm ob lub paj ntawm tib tsob nroj lossis ntawm ob lub paj ntawm cov nroj tsuag sib txawv. Yog tias pollination tshwm sim ntawm ob lub paj ntawm tib tsob nroj, nws yog hu ua geitonogamy thaum yog tias nws tshwm sim ntawm ob lub paj ntawm cov nroj tsuag sib txawv, nws yog hu ua xenogamy.
Geitonogamy yog dab tsi?
Geitonogamy yog ib hom ntawm tus kheej-pollination uas tshwm sim ntawm ob lub paj ntawm tib cov nroj tsuag. Nws yog tus txheej txheem ntawm kev hloov paj ntoos los ntawm ib lub paj mus rau stigma ntawm lwm lub paj ntawm tib tsob nroj. Thaum muaj ntau lub paj muaj nyob rau hauv ib tsob nroj, geitonogamy yog qhov ua tau zoo thiab nws tshwm sim vim yog kev ua ntawm pollinators.
Hais txog kev ua haujlwm, geitonogamy tuaj yeem txhais tau tias yog hom kev sib txawv ntawm cov paj noob hlis, tab sis nyob rau hauv cov ntsiab lus ntawm noob caj noob ces, nws raug suav hais tias yog hom ntawm tus kheej pollination. Vim hais tias cov paj koom nrog cov txheej txheem no yog genetic zoo tib yam. Yog li, cov txheej txheem no ua rau cov xeeb ntxwv zoo tib yam hauv kev sib piv rau xenogamy. Geitonogamy yog ib qho ntawm cov paj uas sib koom ib lub qia. Pob kws yog ib tsob nroj uas qhia tau hais tias hom pollination no.
Xenogamy yog dab tsi?
Xenogamy yog hais txog kev sib koom ua ke ntawm ob gametes ntawm ob tus neeg sib txawv ntawm tib hom. Raws li kev hwm rau angiosperms, xenogeny yog pollination uas tshwm sim ntawm paj ntawm ob hom kab mob sib txawv. Txij li thaum xenogamy tshwm sim ntawm ob niam txiv sib txawv ntawm caj ces (ob lub genotypes), nws ua rau muaj kev hloov pauv caj ces ntawm cov xeeb ntxwv. Yog li txhim khu kev noj qab haus huv tag nrho ntawm ib hom.
Daim duab 01: Xenogamy
Nyob rau hauv qhov xwm txheej, xenogamy yog cov txheej txheem tseem ceeb ntawm kev hloov pauv, vim tias nws tsim cov kab mob haum. 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. Thiab tseem nws yog ib txoj hauv kev tseem ceeb los txo homozygosity hauv kev yug me nyuam hauv kev ua liaj ua teb. Tsis tas li ntawd, nws tso cai rau rov qhia cov alleles lossis qhia txog cov alleles tshiab rau hauv cov pejxeem.
Dab tsi yog qhov zoo sib xws ntawm Geitonogamy thiab Xenogamy?
- Ob leeg Geitonogamy thiab Xenogamy yog hom allogamy.
- Ob leeg los hla kev fertilization.
- Nyob rau hauv ob txheej txheem, ob tus neeg paj koom nrog.
- Ob txheej txheem tshwm sim vim cov vectors xws li pollinators, cua thiab lwm yam.
Qhov txawv ntawm Geitonogamy thiab Xenogamy yog dab tsi?
Geitonogamy yog hais txog pollination ntawm ob lub paj ntawm tib tsob nroj. Xenogamy hais txog pollination ntawm ob lub paj ntawm cov nroj tsuag sib txawv. Yog li ntawd, cov paj zoo ib yam li hauv geitonogamy thaum lub paj yog qhov sib txawv ntawm Xenogamy. Tsis tas li ntawd, geitonogamy yog ib hom ntawm tus kheej-pollination tsis zoo li xenogamy, uas yog hom ntoo khaub lig-pollination.
Geitonogamy tsuas muaj ib tsob nroj xwb, tsis zoo li Xenogamy uas muaj ob hom kab mob sib txawv. Tsis tas li ntawd, cov noob muaj noob zoo ib yam hauv geitonogamy tab sis cov noob sib txawv hauv xenogamy. Ntxiv mus, geitonogamy tsis tuaj yeem ua tau hauv cov nroj tsuag dioecious. Txawm li cas los xij, xenogamy tuaj yeem ua tau hauv cov nroj tsuag dioecious. Geitonogamy tsim cov xeeb ntxwv tsawg dua. Ntawm qhov tsis sib xws, xenogamy tsim cov xeeb ntxwv ntau dua. Zuag qhia tag nrho, geitonogamy tsis yog evolutionary tseem ceeb tab sis xenogamy yog evolutionarily tseem ceeb.
Summary – Geitonogamy vs Xenogamy
Geitonogamy thiab Xenogamy yog ob hom allogamy. Ob lub paj koom nrog hauv ob txoj kev. Tab sis nyob rau hauv geitonogamy, ob paj los ntawm tib cov nroj tsuag thaum nyob rau hauv xenogamy ob paj los ntawm ob yam nroj tsuag. Li no geitonogamy yog ib hom ntawm tus kheej-pollination whereas xenogamy yog ib hom ntoo khaub lig-pollination. Genetic variability ntawm cov xeeb ntxwv yog siab nyob rau hauv xenogamy nyob rau hauv sib piv rau geitonogamy uas tsim noob caj noob ces zoo tib yam xeeb ntxwv. Qhov no yog qhov txawv ntawm geitonogamy thiab xenogamy.
