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2018, vol. 55, br. 2, str. 95-102
Molekularni diverzitet i polimorfizam mikrosatelitskih markera savremenih hibrida kukuruza
Naučni institut za ratarstvo i povrtarstvo, Novi Sad

e-adresasanja.mikic@ifvcns.ns.ac
Projekat:
Unapređenje proizvodnje kukuruza i sirka u uslovima stresa (MPNTR - 31073)

Sažetak
Cilj ovog rada bio je da se proceni genetički diverzitet 97 savremenih hibrida kukuruza koji se gaje u Srbiji pomoću 12 mikrosatelitskih markera. Od ukupno 89 alela, prosečno je utvrđeno 7.4 alela po lokusu. Vrednost polimorfnosti pojedinačnih lokusa (PIC) kretala se od 0.42, za marker umc1792, do 0.81, za marker dupssr10, sa prosekom od 0.64. Vrednosti Ritlandovog koeficijenta srodnosti varirale su između 0.787 i -0.129. Osam markera je bilo dovoljno da razdvoji hibride sa jedinstvenim genotipovima. Analiza glavnih koordinata razdvojila je grupu ranih i grupu kasnih hibrida, iako je diferencijacija između grupa bila niska (Fst = 0.4%). Dva markera, bnlg1556 i umc1075, su najviše doprinela razdvajanju ranih i kasnih genotipova. Vrednosti parametara molekularnog genetičkog diverziteta bile su veće kod ranih nego kod kasnih hibirida, što ukazuje na širu genetičku osnovu prve grupe. Visok nivo polimorfizma markera ukazuje na njihovu podobnost za određivanje molekularnog profila hibirida (tzv. fingerprinting).
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O članku

jezik rada: engleski
vrsta rada: izvorni naučni članak
DOI: 10.5937/ratpov55-17535
objavljen u SCIndeksu: 16.10.2018.
metod recenzije: dvostruko anoniman
Creative Commons License 4.0

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