Abstract
Fungal infection by Fusarium verticillioides is cause of substantial reductions in maize yield
and grain quality worldwide. Developing natural resistance in maize genotypes is an effective way
to achieve sustainable control of F. verticillioides in the field, and breeding for resistance may be
accelerated by identifying genes and loci responsible for natural disease resistance. Significant
advances have been made in the development of transcriptomic, genetic and genomic information
for maize, F. verticillioides moulds, and their interactions over recent years. Several quantitative
trait loci (QTL) and single-nucleotide polymorphism markers for resistance to Fusarium deriving
from QTL mapping and genome-wide association studies have been described in three different
maize populations: 1. Bi-parental population; 2. Association mapping panel; 3. Multi-parent
Advanced Generation Inter Crosses (MAGIC). To guide the identification of candidate genes within
the identified QTL, transcriptomic and sequencing information have been exploited. Promising
candidate genes associated with disease resistance and pathogen related-mechanisms at the
Fusarium resistant loci have been identified on maize chromosomes 4, 5 and 7. Many of the
identified candidates genes offer hints to key metabolic pathways that may have a significant effect
on reducing Fusarium infection. Measuring Fusarium resistance in open field could confirm and
support their direct use in maize breeding either through crosses or genome editing approaches.
Lingua originale | English |
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Titolo della pubblicazione ospite | SCIENCE AND INNOVATION FOR SUSTAINABLE AGRICULTURE INTENSIFICATION: THE CONTRIBUTION OF PLANT GENETICS AND BREEDING |
Pagine | 6 |
Numero di pagine | 1 |
Stato di pubblicazione | Pubblicato - 2019 |
Evento | LXIII SIGA Annual Congress - Napoli Durata: 10 set 2019 → 13 set 2019 |
Convegno
Convegno | LXIII SIGA Annual Congress |
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Città | Napoli |
Periodo | 10/9/19 → 13/9/19 |
Keywords
- Fusarium
- Genome Wide
- Maize
- Resistance
- SNPs