Qhov sib txawv tseem ceeb ntawm hom kab mob panmictic thiab apomictic yog hom kab mob panmictic yog txhua tus neeg muaj peev xwm sib koom nrog vim tias tsis muaj kev coj tus cwj pwm lossis kev sib txuas ntawm caj ces thaum apomictic hom bypass meiosis thiab fertilization thaum lub sij hawm tsim cov noob asexually.
Panmictic thiab apomictic hom yog ob pawg ntawm cov kab mob. Panmixia yog qhov sib txawv ntawm cov tib neeg hauv cov pej xeem. Yog li ntawd, hom tsiaj uas qhia random mating yog hu ua panmictic hom. Lawv tsis muaj kev txwv caj ces lossis kev coj cwj pwm hauv kev sib txuas. Apomixis yog ib hom kev yug me nyuam ntawm asexual uas tsim cov noob tsis muaj fertilization. Nws yog ib qho txawv txawv hom kev yug me nyuam. Li no, apomictic hom yog hom uas qhia apomixis.
Dab tsi yog Panmictic Hom?
Panmixis hais txog kev sib raug zoo. Hauv cov pej xeem panmictic, kev ua plees ua yi yog qhov sib txawv ntawm cov tib neeg. Ib tug txiv neej los yog poj niam yeej sib npaug. Tsis muaj kev txwv kev sib deev hauv cov neeg. Yog li ntawd, tsis muaj kev txwv tus cwj pwm lossis caj ces. Txhua hom kab mob panmictic yog qhov sib npaug muaj peev xwm sib koom ua ke. Mating tshwm sim ntawm cov tib neeg tsis hais lub cev, caj ces lossis kev nyiam ntawm kev sib raug zoo. Yog li ntawd, tus neeg muaj kev sib npaug ntawm kev xaiv los ua tus khub.
Daim duab 01: Cov Hom Kab Mob Sib Kis
Txhua yam kab mob panmictic tuaj yeem xaiv tus khub los ntawm cov pejxeem. Txij li thaum lawv interbreed nyob rau hauv cov pej xeem, cov pej xeem tseem genetic sib xws nyob rau lub sij hawm.
Apomictic Species yog dab tsi?
Apomictic hom yog hom nroj tsuag uas qhia tias apomixis. Apomixis yog ib daim ntawv ntawm asexual reproduction uas hla dhau qhov tseem ceeb tshaj plaws xws li meiosis thiab fertilization ntawm kev sib deev kev sib deev thaum lub sij hawm tsim cov noob siv tau. Yog li ntawd, apomictic nroj tsuag tuaj yeem tsim cov noob tsis muaj fertilization lossis syngamy. Cov noob genotype zoo ib yam nrog niam txiv poj niam.
Daim duab 02: Apomictic Species
Hauv kev ua liaj ua teb, apomixis tso cai rau ntau yam tshiab kom khaws tau cov txiaj ntsig zoo. Tn apomictic nroj tsuag, genetic recombination tsis tshwm sim. Lub qe qe yog tsim los ntawm mitosis hauv cov nroj tsuag apomictic. Tom qab ntawd nws loj hlob mus rau hauv lub embryo yam tsis muaj syngamy. Apomictic nroj tsuag ntau tshaj 400 genera.
Dab tsi zoo sib xws ntawm Panmictic thiab Apomictic Hom?
- Nroj tsuag thiab tsiaj txhu pom ob qho tib si panmixis thiab apomixis.
- Ob hom muaj peev xwm tsim tau cov xeeb ntxwv.
Qhov txawv ntawm Panmictic thiab Apomictic Hom yog dab tsi?
Panmictic hom yog hom tsiaj uas qhia random mating thaum apomictic hom yog hom uas tsim cov noob ntawm asexual reproduction. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm panmictic thiab apomictic hom. Panmixis koom nrog kev sib deev thaum lub sij hawm apomixis yog ib hom kev sib deev los yog kev yug me nyuam.
Ntxiv mus, hauv hom kab mob panmictic, cov xeeb ntxwv tsim los ntawm cov qe fertilized thaum nyob rau hauv hom apomictic, cov xeeb ntxwv tsim los ntawm cov qe tsis muaj menyuam. Tsis tas li ntawd, hom kab mob panmictic tau txais meiosis thiab fertilization thaum apomictic hom reproduces yam tsis muaj meiosis thiab fertilization. Yog li, qhov no yog lwm qhov sib txawv ntawm hom kab mob panmictic thiab apomictic.
Hauv qab infographic tabulates ntau qhov sib txawv ntawm panmictic thiab apomictic hom.
Summary – Panmictic vs Apomictic Species
hom Panmictic yug los ntawm kev sib deev kev sib deev thaum apomictic tsiaj yug los ntawm asexual reproduction. Apomictic nroj tsuag tsim cov noob asexual yam tsis muaj fertilization. Panmictic hom qhia random mating thiab lawv interbreed yam tsis muaj kev txwv thiab lub qe raug fertilization. Apomictic hom khaws cia zoo tib yam genotype ntawm niam txiv. Cov qe yog tsim tsis muaj meiosis nyob rau hauv apomictic hom, tsis zoo li nyob rau hauv panmictic hom, uas tsim qe los ntawm meiosis. Yog li, qhov no yog cov ntsiab lus ntawm qhov sib txawv ntawm panmictic thiab apomictic hom.
