Pregled bibliografske jedinice broj: 458242
Lokusi kvantitativnih svojstava (QTL) za akumulaciju kadmija i cinka u listu kukuruza
Lokusi kvantitativnih svojstava (QTL) za akumulaciju kadmija i cinka u listu kukuruza // Zbornik radova 45. hrvatskog i 5. međunarodnog simpozija agronoma / Marić, Sonja ; Lončarić, Zdenko (ur.).
Osijek: Poljoprivredni fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2010. str. 106-107 (predavanje, međunarodna recenzija, sažetak, znanstveni)
CROSBI ID: 458242 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Lokusi kvantitativnih svojstava (QTL) za akumulaciju kadmija i cinka u listu kukuruza
(Quantitative trait loci (QTL) for accumulation of cadmium and zinc in maize leaves)
Autori
Sorić, Roberta ; Lončarić, Zdenko ; Kovačević, Vlado ; Brkić, Ivan ; Šimić, Domagoj
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
Zbornik radova 45. hrvatskog i 5. međunarodnog simpozija agronoma
/ Marić, Sonja ; Lončarić, Zdenko - Osijek : Poljoprivredni fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2010, 106-107
ISBN
978-953-6331-79-6
Skup
45. hrvatski i 5. međunardoni simpozij agronoma
Mjesto i datum
Opatija, Hrvatska, 15.02.2010. - 19.02.2010
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
cink ; kadmij ; kukuruz ; list ; QTL
(zinc ; cadmium ; maize ; leaf ; QTL)
Sažetak
Recent studies demonstrate that two metal pumps responsible for the loading of zinc ions (Zn2+) into xylem are also responsible for accumulation of toxic heavy metal cadmium (Cd) in the shoot. It is important, since mobility and availability of cadmium to crop plants pose risk to the food chain. Our objectives were to analyze variation for Cd and Zn concentrations in leaves of a maize mapping population and to detect the effects of quantitative trait loci (QTL) associated with the Cd and Zn concentrations. 290 F4 lines were phenotyped at two environments and genotyped with 121 polymorphic SNP and SSR markers evenly distributed across the genome. Cd and Zn accumulations in leaves of the population were significantly affected by the genotype. One major QTL affecting the Cd accumulation was detected on chromosome 2 associated with the SSR marker bnlg1831. The locus explained 49.8% of the phenotypic variation. The LOD score for the QTL of 32.5 indicates very high probability that this QTL strongly affected amounts of Cd in leaves. For zinc accumulation, one QTL was detected with the LOD score of just 3.30 with LOD threshold equivalent to an alpha = 0.10 genome-wide error rate. It explains 8.4% of the phenotypic variation. It suggests that zinc leaf accumulation is controlled by many more genes which were remained undetected in our study.
Izvorni jezik
Hrvatski, engleski
Znanstvena područja
Poljoprivreda (agronomija)
POVEZANOST RADA
Projekti:
073-0730463-0203 - Genetska analiza koncentracije minerala u zrnu kukuruza (Šimić, Domagoj, MZOS ) ( CroRIS)
079-0730463-0447 - Prevladavanje stresa uzgoja kukuruza na kiselom tlu gnojidbom i oplemenjivanjem (Kovačević, Vlado, MZOS ) ( CroRIS)
079-0790462-0450 - Utjecaj kondicioniranja tla na hraniva i teške metale u sustavu tlo-biljka (Lončarić, Zdenko, MZOS ) ( CroRIS)
Ustanove:
Poljoprivredni institut Osijek,
Fakultet agrobiotehničkih znanosti Osijek
