Quantitative trait loci conferring grain selenium nutrient in durum wheat × wild emmer wheat RIL population
| Autor: | Jun YAN, Wen-Tao XUE, Rong-Zhi YANG, Hai-Bo QIN, Gang ZHAO, Fahima TZION, Jian-Ping CHENG |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Czech Journal of Genetics and Plant Breeding, Vol 54, Iss 2, Pp 52-58 (2018) |
| Druh dokumentu: | article |
| ISSN: | 1212-1975 1805-9325 |
| DOI: | 10.17221/112/2016-CJGPB |
| Popis: | The genetic and phenotypic basis of grain selenium concentration (GSeC) and yield per plant (GSeY) was studied in a tetraploid wheat population consisting of 152 F6 recombinant inbred lines (RILs) derived from a cross between Triticum dicoccoides (accession G18-16) and durum wheat cultivar Langdon (LDN) grown under three different environments over 2 years. Wide genetic variation was found among RILs for GSeC and GSeY. A total of 15 QTL effects on 9 chromosomes associated with GSeC and GSeY were detected, with a logarithm od the odds (LOD) score ranging from ca. 3.2 to 11.7, explaining 1.4% to 18.6% of the phenotypic variation. Higher GSeC and GSeY were conferred by the G18-16 allele at 10 loci and by the LDN allele at 5 loci. Seven QTLs showed interactions with environmental conditions. Five genomic regions harbouring QTLs for grain Se concentrations and yields were selected for further marker-assisted selection programs, facilitating the use of wild alleles for improvement of elite wheat cultivars. |
| Databáze: | Directory of Open Access Journals |
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