24.08.2013 Views

Zbornik - Društvo genetičara Srbije

Zbornik - Društvo genetičara Srbije

Zbornik - Društvo genetičara Srbije

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

100 ZBORNIK ABSTRAKATA III KONGRESA GENETIÈARA SRBIJE IV-Usm-11<br />

Subotica, 30. novembar - 4. decembar 2004.<br />

PRIMENA MARKER ASISTIRANE SELEKCIJE (MAS) U<br />

OPLEMENJIVANJU PŠENICE U NOVOM SADU<br />

B. Kobiljski 1 , D. Obreht 2 , A. Kondiæ 1 , S. Denèiæ 1 , Lj. Vapa 2 , J. Pilipoviæ 1 ,<br />

R. Barjaktaroviæ 2 , M. Marjanoviæ 1 i M. Davidoviæ 2<br />

1<br />

Nauèni Institut za ratarstvo i povrtarstvo, Novi Sad<br />

2<br />

Prirodno-matematièki fakultet, Novi Sad<br />

U radu su analizirani rezultati dobijeni u poslednje dve godine primenom molekularnih<br />

markera – mikrosatelita, u Zavodu za strna ita, Nauènog Instituta za ratarstvo i<br />

povrtarstvo u Novom Sadu. Jedan od segmenata rada bio je detekcija alelnog<br />

polimorfizma u lokusu Rht8 gena i utvrðivanje meðuzavisnosti alelnog skora i fenotipske<br />

ekspresije vanih svojstava za oplemenjivanje pšenice (ranostasnost, visina biljke, broj i<br />

masa zrna po klasu). Drugi deo molekularne i fenotipske evaluacije odnosio se na<br />

genetsku determinaciju mirovanja semena pšenice. Deo rada sa molekularnim markerima<br />

obuhvatio je i utvrðivanje alelnog polimorfizma gluteninskih subjedinica i prisustva<br />

1B/1R translokacije kod veæeg broja genotipova pšenice iz kolekcije Zavoda. Konaèno, u<br />

radu su tumaèeni rezultati dobijeni primenom mikrosatelita u detekciji alela koji<br />

uslovljavaju tolerantnost pšenice na suvišak B. Dobijeni rezultati jasno ukazuju na se<br />

MAS sa uspehom moe primeni kao izuzetno moæna, precizna i korisna metoda u<br />

oplemenjivanju pšenice. Trenutno, najveæi znaèaj metode je, što se na osnovu dobijenih<br />

rezultata, mogu sa sigurnošæu odabrati genotipovi koji poseduju poeljne gene<br />

(sekvence) i da se, kao takvi, koriste kao roditeljske komponente u hibridizaciji. U<br />

bliskoj buduænosti, pored daljeg rada na detekciji molekularne i fenotipske varijabilnosti,<br />

primena molekularnih markera æe obuhvatiti i analizu jednog dela generacijskog<br />

materijala, kao i linija u komparativnim ogledima, kako za gore navedena svojstva, tako i<br />

za druga: otpornost na niske temperature, tolerantnost na fusarijum, zaštitu autorskih<br />

prava sorti pšenice <strong>Srbije</strong> i Crne Gore itd.<br />

APPLICATION OF MARKER-ASSISTED SELECTION (MAS) IN WHEAT<br />

BREEDING IN NOVI SAD<br />

This paper analyses the results obtained by using molecular markers – microsatellites<br />

over last two years at the Small Grains Department of Institute of Field and Vegetable<br />

Crops in Novi Sad. One part of the research was detection of allelic polymorphism at the<br />

dwarfing gene Rht8 locus and determination of relation between allelic score and<br />

phenotypic expression of traits important for wheat breeding (earliness, plant height,<br />

grain number and grain weight per spike). Another part of the molecular and phenotypic<br />

evaluations has been related to genetic determination of seed dormancy in wheat. The<br />

part of the work with molecular markers comprised the identification of allelic polymorphism<br />

of glutenin subunits and the presence of the 1B/1R translocation in genotypes from<br />

the Departmental Core Collection. Finally, the paper interprets the results obtained using<br />

microsatellites in detection of the alleles determining wheat tolerance to increased B concentration.<br />

The obtained results clearly show that MAS can be successfully applied as an<br />

extremely powerful, precise and useful method in wheat breeding. At present, the main<br />

advantage of the method is that, on the basis of its results, genotypes with desirable genes<br />

(sequences) can be determined and used as parents in hybridization. In very near future,<br />

in addition to molecular and phenotypic variability determination, application of molecular<br />

markers will be expanded to include the evaluation of segregation generations and advanced<br />

lines for both the traits mentioned above and other ones such as the tolerance to<br />

low temperatures, Fusarium, fingerprinting of wheat varieties from Serbia and<br />

Montenegro for breeders’ rights protection, etc.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!