Vpliv SNP znotraj FTO in LEP gena na prirast telesne mase pri govedu

Iva ČERNOŠA, Žan PIRC, Andrej RENČELJ

Povzetek


Prirast telesne mase v določenem časovnem obdobju je eden pomembnejših parametrov v prireji govejega mesa. Znanih je nekaj kandidatnih genov, ki imajo velik vpliv na lastnosti rastnosti, med njimi zavzemata pomembno mesto lokusa FTO (povezan z maso maščevja in debelostjo) in LEP (leptin). V poskusu smo ocenili frekvence alelov na dveh lokusih znotraj gena FTO (FTO6 in FTO10) in na enem lokusu znotraj leptinskega gena na vzorcu goveda pasme aberdeen angus (AA) in črno‑bele (ČB) pasme. Povezavo teh lokusov s prirasti v 200 dnevnem obdobju (med 165. in 365. dnem starosti) smo preverjali na vzorcu mešane populacije mlečnih in mesnih pasem. Vezave med obema polimorfizmoma znotraj FTO gena nismo mogli potrditi, ker se med eksonom 5 in intronom 5 v FTO genu nahaja mesto z visoko frekvenco rekombinacij. Na preiskovani populaciji smo dokazali značilen vpliv telesne mase ob rojstvu, pasme in polimorfizmov v FTO genu na prirast. Vpliva polimorfizma v genu LEP nismo mogli potrditi.

Ključne besede


govedo, SNP, prirast telesne mase, leptin, genetika, kandidatni geni, FTO, LEP

Celotno besedilo:

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Literatura


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DOI: http://dx.doi.org/10.14720/aas.2016.108.1.3

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Avtorske pravice (c) 2016 Iva ČERNOŠA, Žan PIRC, Andrej RENČELJ

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