Abstract:
Carrot (Daucus carota L.) is among primary root vegetables of family Apiaceae. Globally it is an economically important crop in terms of consumption, production and market value. Carrot has a range of phenotypic and genotypic diversity due the pigments and domestication history. The diverse nature of carrot make this plant a rich source of carotenoids specifically a and ß carotenes, the main precursor of vitamin A. Carrot is a glycophytic plant species, highly sensitive to salt concentrations restricting its growth and development. Molecular markers are an effective tool to increase desired trait selection through identification of genomic regions of diverse germplasm. Genotyping by sequencing is an advance technology providing full coverage of genomic data. This study was planned to identify genomic regions of carrot associated with salt tolerance. During GWAS analysis the trait-marker association mapping identified eleven putative genes regulating salt tolerance, five genes responsible for carotenoid biosynthesis and seven genes maintaining ion homeostasis in these accessions. Beside these genes several other genes encoding proteins such as F-box proteins, Myb-proteins, zinc- transcription factor proteins, proline proteins, lysine-histidine proteins, phytochrome proteins and thioredoxin proteins encoding genes were also identified. All these findings can be suggested to increase salt tolerance mechanism in carrot tolerant accessions. It was concluded that these genes can provide basic information to elucidate genetic control of salinity tolerance in carrot as well as the identified tolerant accessions can be a useful tool for cultivation under saline soils.
Page(s):
24-24
DOI:
DOI not available
Published:
Journal: Abstract Book on Second International Conference on Recent Approaches in Plant Sciences (RAPS-23) 4-5 May 2023 , Volume: 0, Issue: 0, Year: 2023